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January 1998 Update

Plants and Offices

Selection Guide
January 1998 Update
Plants and Offices
Sales and Distribution
Products
Product Assurance
Life Support Policy
Table of Contents
New Products
COMPANY PROFILE Alphanumeric Product Index SECTION 1 Thermal Management TC02 / 03 TC1023 / 1024 TC07 TCN75 TC622 TC624 TC642 TC643 TC646 TC648 TC1132 / 1133 Mixed-Signal TC510 / 514 TC520A TC530 / 534 Power Management DC-to-DC Converters TCM680 TC682 TCM828 / 829 TCM850 / 851 / 852 / 853 TC1121 TC7660H CMOS LDO Family TC1014 / 1015 / 1185 TC1054 / 1055 / 1186 TC1070 / 1071 / 1187 TC1072 / 1073 TC1107 TC1108 TelCom Semiconductor, Inc.
.........................................................Inside Front Cover .................................................................... 4 - 8 HOT NEW PRODUCTS
Applications
Precision Temperature-to-Voltage Converters .................................. 10 Precision Temperature-to-Voltage Converters with Shutdown Mode ................. 11 3V Temperature Controller with Programmable Hysteresis ........................ 12 Serial Thermometer and Thermal Watchdog ................................... 13 Low Cost, 5-Volt Programmable Single Trip-Point Temperature Sensor .............. 14 Low Cost, 3-Volt Single Trip-Point Temperature Sensor .......................... 15 PWM Fan Speed Controller with Fault Detection ............................... 16 Integrated Fan / Motor Driver ................................................ 17 Fan Speed Controller with Auto-Shutdown .................................... 18 Fan Speed Controller with Auto-Shutdown .................................... 19 Consumer Grade Temperature-to-Voltage Converters ........................... 20
Selection Guides Cross Reference
Precision Analog Front Ends ............................................... 22 Serial Interface Adapter for TC500 A / D Converter Family ......................... 23 Precision Data Acquisition Subsystems ....................................... 24
Dual Charge Pump Voltage Converter ........................................ 26 Inverting Doubler Charge Pump ............................................ 27 Micro Charge Pump Voltage Converters ...................................... 28 GaAs FET Bias Supplies .................................................. 29 100mA Charge Pump Voltage Converter with Shutdown ......................... 30 High Frequency DC-to-DC Converters ....................................... 31 50mA, 100mA, and 150mA CMOS LDOs ..................................... 32 50mA, 100mA, and 150mA CMOS LDOs with Shutdown and ERROR Output ......... 33 50mA, 100mA, and 150mA Adjustable CMOS LDOs ............................ 34 50mA and 100mA LDOs with Shutdown, ERROR Output, and VREF Bypass .......... 35 300mA CMOS LDO with Shutdown .......................................... 36 300mA CMOS LDO ...................................................... 37
Gen. Information
Table of Contents (Cont.)
TC1173 TC1174 SECTION 1 (Cont.) System Management TC32M TC70 / 71 TCM809 / 810 TC1232 Evaluation Kits TC500EV TC530EV TC642EV TC1015EV TC7660EV TCM850EV
300mA CMOS LDO with Shutdown, ERROR Output, and Bypass .................. 38 300mA Adjustable CMOS LDO with Shutdown and VREF Bypass ................... 39 HOT NEW PRODUCTS
3-Pin Processor Supervisor with Watchdog Timer ............................... 42 Micromaster - System Supervisor with Power Supply Monitor, Watchdog, and Battery Backup ........................................................ 43 3-Pin µP RESET Monitors ................................................. 44 Microprocessor Supervisory Circuit .......................................... 45
Evaluation Kit for TC500 / 510 / 514 / 520A ....................................... 48 Evaluation Kit for TC530 / 534 A / D Converters .................................. 48 Evalution KIt for TC642 and TC646 BDC Fan Controllers ......................... 49 Evaluation Kit and Prototyping Kit for TC1014 / 1015, TC1054 / 1055, and TC1070 / 1 / 2 / 3 .. 49 Charge Pump Evaluation Kit ............................................... 50 Evaluation Kit for TCM850 / 851 / 852 / 853 ...................................... 50
SECTION 2 Hand-Held Power Management Application Areas Notebook / Computer / Peripheral Application Areas Instrumentation Application Areas Switched Mode Power Supply Application Areas Application Notes Evaluation Kits
PRODUCT USAGE GUIDES / APPLICATIONS AREAS ...................................................................... 52 ...................................................................... 53 ...................................................................... 54 ...................................................................... 55 .................................................................. 56 - 57 ...................................................................... 57
TelCom Semiconductor, Inc.
Table of Contents (Cont.)
New Products
SECTION 3 TelCom Product Portfolio Thermal Management Product Information Reply Card Mixed-Signal
SELECTION GUIDES ...................................................................... 60 Thermal Supervisors .................................................. 61 - 62 ............................................................. Center Insert Precision A / D Converters .............................................. 63 - 66 Voltage References ................................................... 67 - 68 Operational Amplifiers and Comparators .................................. 69 - 70 Charge Pump DC-to-DC Converters ..................................... 71 - 72 PWMs ................................................................. 73 Linear Regulators .................................................... 74 - 76 Power MOSFET Driver ................................................ 77 - 79 SELECTION GUIDES CPU / System Supervisors .............................................. 80-81 Data Communications .................................................... 82 LCD Display Drivers ...................................................... 82 CROSS REFERENCE GUIDE .................................................................. 84-108 GENERAL INFORMATION AND DISTRIBUTORS .................................................................. 110-111 ..................................................................... 112 ...............................................................Back Cover
Applications
Power Management
Selection Guides Cross Reference
System Management Interface
SECTION 4 Cross References SECTION 5 Ordering Information Package Information TelCom Worldwide Sales Offices
Gen. Information
TelCom Semiconductor, Inc.
Alphanumeric Product Index
Part # LM285 LM385 TC02 TC03 TC04A TC04B TC05A TC05B TC07 TC18C43 TC18C46 TC25C25 TC28C43 TC28C46 TC32M TC35C25 TC38C43 TC38C46 TC54 TC55 TC70 TC71 TC96C555 TC170 TC232 TC426 TC427 TC428 TC429 TC500 TC500A TC500EV TC510 TC514 TC520A TC530 TC530EV
Description
Packages
1997 Data Book
1998 Selection Guide
Alphanumeric Product Index
Part # TC534 TC620 TC621 TC622 TC623 TC624 TC626 TC642 TC642EV TC643 TC646 TC648 TC660 TC682 TC811 TC815 TC818A TC820 TC826 TC835 TC850 TC901 TC911A TC911B TC913A TC913B TC962 TC1014 TC1015 TC1015EV TC1023 TC1024 TC1025 TC1026 TC1027 TC1028 TC1029 Description Packages 1997 Data Book 1998 Selection Guide
New Products Applications Selection Guides Cross Reference
General Information
TelCom Semiconductor, Inc.
Alphanumeric Product Index
Part # TC1030 TC1031 TC1043 TC1044S TC1054 TC1055 TC1070 TC1071 TC1072 TC1073 TC1107 TC1108 TC1121 TC1132 TC1133 TC1142 TC1173 TC1174 TC1185 TC1186 TC1187 TC1232 TC1410 TC1410N TC1411 TC1411N TC1412 TC1412N TC1413 TC1413N TC1426 TC1427 TC1428 TC4403 TC4404 TC4405 TC4420 TC4421 TC4422
Description
Packages
1997 Data Book
1998 Selection Guide
Alphanumeric Product Index
Part # TC4423 TC4424 TC4425 TC4426 TC4426A TC4427 TC4427A TC4428 TC4428A TC4429 TC4431 TC4432 TC4467 TC4468 TC4469 TC4626 TC4627 TC7106 TC7106A TC7107 TC7107A TC7109 TC7109A TC7116 TC7116A TC7117 TC7117A TC7126 TC7126A TC7129 TC7135 TC7136 TC7136A TC7211AM TC7650 TC7652 TC7660 TC7660EV TC7660H TC7660S Description Packages 1997 Data Book 1998 Selection Guide
New Products Applications Selection Guides Cross Reference
General Information
TelCom Semiconductor, Inc.
Alphanumeric Product Index
Part # TC7662A TC7662B TC8129 TC9400 TC9401 TC9402 TC9491A TC9491B TC14433 TC14433A TCL1117 TCL1585 TCL1585EV TCL1587 TCM680 TCM809 TCM810 TCM828 TCM829 TCM850 TCM850EV TCM851 TCM852 TCM853 TCM1188 TCM1189 TCN75 TCN4040 TCN4041 Description Packages 1997 Data Book 1998 Selection Guide
Contact Factory for Information
TelCom Semiconductor, Inc.
New Products
Applications
Selection Guides Cross Reference
General Information
TelCom Semiconductor
Thermal Management
Hot New Products
TC02 / 03 Precision Temperature-to-Voltage Converters
FEATURES
VOLTAGE
Small size, low cost, and low power operation make the TC02 / 03 suitable for a wide range of general purpose temperature measurement applications.
TelCom Semiconductor, Inc.
Thermal Management
Hot New Products
New Products
TC1023 / 1024 Precision Temperature-to-Voltage Converters with Shutdown Mode
FEATURES
Applications
to 2.2V
Selection Guides Cross Reference
TelCom Semiconductor, Inc.
23 10 TC 1024 TC
enable input that reduces supply current to 1µA (typical) when pulled high. In this state, the output defaults to a high resistance, allowing an external voltage output device (such as a second TC1023 / 24 for multizone sensing) to be multiplexed on a common analog line. Small size, low cost, flexibility, and low power operation make the TC1023 / 1024 suitable for a wide range of general purpose temperature measurement applications.
General Information
Thermal Management
Hot New Products
TC07 3V Temperature Controller with Programmable Hysteresis
FEATURES
2.7V to 5.5V
Temperature
VDD Rh Rt TSET OUT
Outputs OUT
OUT OUT
Programmable Hysteresis
User Programmable Hysteresis and Temperature Set Point Easily Programs with Two External Resistors Wide Temperature Detection Range TC07CxA ............................ 0°C to +70°C TC07ExA .......................... - 40°C to +85°C TC07VxA ......................... - 40°C to +125°C Small Packages .............. 8-Pin MSOP and 8-Pin SOIC Cost Effective
Programmable Temperature Setting
Programmable Temperature and Hysteresis Setting
The TC07 is a programmable temperature sensor that operates from power supply levels as low as 2.7V. It consists of an on-board temperature sensor and user-programmable threshold detector. It operates over a maximum temperature range of - 40°C to +125°C (commercial and industrial operating temperature versions are also available). It can be operated in an "open-loop" mode as an over-temperature or under-temperature monitor. It also can be operated as a "closed-loop" controller when its outputs are connected to a fan or heating system. Both high-true and low-true outputs are provided for easy system interface. Typical cooling applications include thermal overload sensing and fan control in power supplies and computing systems. Typical heating applications include en12
TelCom Semiconductor, Inc.
Thermal Management
Hot New Products
New Products
TCN75 Serial Thermometer and Thermal Watchdog
FEATURES
Applications
Selection Guides Cross Reference
The TCN75 is a serially programmable temperature sensor that notifies the host controller when ambient temperature exceeds a user-programmed setpoint. Hysteresis also is programmable. The INT / COMP output is programmable as either a simple comparator for thermostat operation or as a temperature event interrupt. Communication with the TCN75 is accomplished via a 2-wire bus that is compatible with industry standard protocols. This permits reading the current temperature, programming the setpoint and hysteresis, and configuring the device. The TCN75 powers up in Comparator Mode with a default setpoint of 80°C with 5°C hysteresis. Defaults allow independent operation as a standalone thermostat. A shutdown command may be sent via the 2-wire bus to
TelCom Semiconductor, Inc.
General Information
Thermal Management
Hot New Products
TC622 Low Cost, 5-Volt Programmable Single Trip-Point Temperature Sensor
Temperature
Single, Cool & Safe
Set Point
(- 40°C to +85°C)
FEATURES
Temperature
Temperature Set Point Easily Programs with a Single External Resistor TO-220 Package for Direct Mounting to Heatsink (TC622xAT) or Standard 8-Pin PDIP, SOIC Cost Effective
Set Point - 2°C
TC622
OUT OUT
Active State
VOL VOH
Active State
performance microcontrollers and microcomputers, power supplies, consumer appliances, automotive and industrial temperature control, and battery overheat detectors in portable equipment. Both devices feature very low supply current, making them suitable for many portable applications.
TelCom Semiconductor, Inc.
Thermal Management
Hot New Products
New Products Applications
TC624 Low Cost, 3-Volt Single Trip-Point Temperature Sensor
FEATURES
TEMP SENSOR
TC624
Temperature Set Point Easily Programs with a Single External Resistor Operates with 2.7V Power Supply Standard 8-Pin PDIP, SOIC Cost Effective
Selection Guides Cross Reference
TEMPERATURE TO VOLTAGE CONVERTER OUT
VOLTAGE REFERENCE GENERATOR
TSET VCC GND
The 3-volt electronics market is heating up therefore, cost-effective thermal management techniques must be incorporated into every modern system design. The TC624 integrates a temperature sensor, voltage reference, and all required circuitry to form a stand-alone single trip-point temperature sensor. Key features of the TC624 include a 2.7V to 4.5V supply voltage range, a user-programmable temperature set point, a temperature measurement range of - 40°C to +125°C, and space-saving 8-pin PDIP and SOIC packaging.
TelCom Semiconductor, Inc.
General Information
Thermal Management
Hot New Products
TC642 PWM Fan Speed Controller with Fault Detection
FEATURES
NTC VIN R2 CF CF 1µF VMIN VDD VOUT THERMAL SHUTDOWN RBASE + Q1 TC642 VMIN FAULT GND SENSE CSENSE
RSENSE
SPEED
TEMPERATURE
TelCom Semiconductor, Inc.
Thermal Management
Hot New Products
New Products
TC643 Integrated Fan / Motor Driver
Applications
FEATURES
12V 0V
BDC FAN
VCC DRV
Selection Guides Cross Reference
The TC643 is a switchmode brushless DC fan / motor speed driver with diagnostic circuits. External components are kept to a minimum by integrating the power transistor on chip. Any logic-level signal can be used to drive the on-chip Power Driver. The output is current limited and a logiclevel indication, ILMT, is provided to indicate an over-current condition. The RPM output gives an indication of motor RPM. Each time the motor current is interrupted by commutation, a logic pulse occurs on RPM. The fundamental frequency of the resulting square wave is (4 x rpm). See the Applications section for more information and system design guidelines.
TelCom Semiconductor, Inc.
The TC643 mates easily with microcontrollers or other digital logic to form a complete motor or fan control and monitoring system, featuring: Variable Speed PWM Drive RPM Indication and Motor Open / Motor Shorted / Motor Locked Fault Detection. The TC643 is available in a standard 8-pin plastic DIP, SOIC, and MSOP package.
General Information
Thermal Management
Hot New Products
TC646 Fan Speed Controller with Auto-Shutdown
FEATURES
TEMPERATURE
SPEED
TelCom Semiconductor, Inc.
Thermal Management
Hot New Products
New Products
TC648 Fan Speed Controller with Auto-Shutdown
FEATURES
Applications
SPEED
TEMPERATURE
Selection Guides Cross Reference
CFF 1µ
TelCom Semiconductor, Inc.
General Information
Thermal Management
Hot New Products
TC1132 / 1133 Consumer Grade Temperature-to-Voltage Converters
FEATURES
Thermistor
+125°C, and operates from a single supply. It has the same output slope with temperature as the TC1133 (10mV / °C). The output voltage range is 100mV at - 20°C to 1.75V at +125°C. Small size, low cost, low power operation, and linear voltage output with temperature make the TC1132 / 1133 suitable replacements for thermistors in a wide variety of applications.
TelCom Semiconductor, Inc.
New Products
Applications
Selection Guides Cross Reference
General Information
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Mixed-Signal
Hot New Products
TC510 / 514 Precision Analog Front Ends
FEATURES
URE ESS PR TS
GR INT AT EOR T
CO DCNV TO ER -DC TE R
CO LO NTR GIC OL
The TC510 and TC514 implement dual slope A / D converters (with resolutions as high as 17 bits plus sign) when supervised by the system processor. The TC510 is a single-channel converter. The TC514 adds a 4input, differential analog multiplexer to the basic TC510 design. Powered by a single 5V supply, the TC510 / 514 accept differential (and bipolar) input signals and exhibits a high degree of 50 / 60Hz noise rejection. They consume under 20mW of power. The output of the on22
board charge pump (which generates negative Bias for the TC510 / 514) is also available as a negative supply for other components in the system. This allows the use of less expensive, dual -supply op amps and comparators without the added cost of a dedicated charge pump converter. The low interconnect overhead (3-wire logic port) consumes a minimum amount of I / O resources, making the TC510 / 514 ideal for microcontroller-based systems of all kinds. This interface also enables the user to trade-off resolution for increased conversion speed under software control. Their low operating power, excellent noise rejection, high resolution, flexibility, and low cost make the TC510 / 514 the ideal choice for many portable, cost-sensitive system applications, such as consumer medical electronics, mid-to-low end instrumentation and controls, battery charging systems, and test equipment.
TelCom Semiconductor, Inc.
Mixed-Signal
Hot New Products
New Products Applications
TC520A Serial Interface Adapter for TC500 A / D Converter Family
Selection Guides Cross Reference
A B CMPTR CE DV
5 4 3 14 13 LOGIC CONTROL
TIME OUT FORCE AUTO-ZERO POLARITY BIT 18-BIT SHIFT REGISTER CLEAR COUNT 16 GATE 9 10 DOUT DCLK 12 LOAD
OSCIN OSCOUT
FEATURES
s s s s s s Converts TC500 / 500A / 510 / 514 to Serial Operation Programmable Conversion Rate and Resolution for Maximum Flexibility Supports up to 17 Bits of Accuracy Plus Polarity Bit Low Power Operation ................. Typically 7.5mW 14-Pin PDIP or 16-Pin SOIC Packages Polled or Interrupt Mode Operation
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a 3-wire serial port. Key converter operating parameters are programmable for complete user flexibility. Data conversion is initiated when the CE input is brought low. The converted data (plus overrange and polarity bits) are held in an 18-bit shift register until read by the processor or until the next conversion is completed. Data may be clocked out of the TC520A at any time, and at any rate the user prefers. A Data Valid (DV) output is driven active at the start of each conversion cycle, indicating the 18-bit shift register update has just been completed. This signal may be polled by the processor or can be used as data-ready interrupt. The TC520A timebase can be derived from an external frequency source of up to 6MHz or can operate from its own external crystal. It requires a single 5V logic supply and dissipates less than 7.5mW.
General Information
Mixed-Signal
Hot New Products
TC530 / 534 Precision Data Acquisition Systems
FEATURES
PRESSURE TEMPERATURE
VOLTS
Se Po rial rt
The TC530 / 534 are low cost 5V serial data acquisition systems targeted at precision measurement applications. The TC530 and TC534 utilize dual slope integration conversion technology and deliver 17-bit accuracy with greater than 60db of 50 / 60Hz noise rejection. The user can readily adapt the TC530 / 534 to the measurement task at hand by trading off decreased resolution for faster conversion time. Powered by a single 5V supply, the TC530 / 534 accept both differential and bipolar input signals (maximum of +4.5V), eliminating the need for additional input signal conditioning circuitry. The TC534 has an on24
board 4-channel analog multiplexer, while the TC530 is the single channel version. Each device has its own on-board charge pump converter with a - 5V, 10mA output to provide negative Bias to other analog circuitry in the system. This allows the use of less expensive, dual supply op amps, comparators, and interface circuitry without the added cost of a dedicated charge pump converter. The TC530 / 534 also consumes 25mW of power, making it ideal for many battery-operated applications such as blood glucose meters, consumer electronics, and portable testers.
TelCom Semiconductor, Inc.
New Products
Applications
Selection Guides Cross Reference
General Information
TelCom Semiconductor, Inc.
Power Management
Hot New Products
TCM680 Dual Charge Pump Voltage Converter
FEATURES
VOLTAGE VOLTAGE
analog Bias supplies in portable systems such as cellular phones, portable instrumentation, and portable computing equipment.
TelCom Semiconductor, Inc.
Power Management
Hot New Products
New Products
TC682 Inverting Doubler Charge Pump
FEATURES
VOLTAGE
Applications
Selection Guides Cross Reference
tive supply is available. Typical applications are - 10V from a +5V logic supply, and - 6V from a 3V battery supply. The TC682 is particularly useful in systems that operate from a +3V power supply and use inexpensive, higher voltage LCD displays. The +3V supply added to the - 6V Bias generated by the TC682 results in a total of 9V available for LCD Bias. Other applications include general purpose negative supplies for op amps and other analog components. Its high efficiency and low supply current make the TC682 a natural for many applications such as medical instruments, panel meters, cellular phones, and portable computing equipment.
General Information
Power Management
Hot New Products
TCM828 / 829 Micro Charge Pump Voltage Converters
FEATURES
The TCM828 operates at a frequency of 12KHz while the TCM829 operates at a frequency of 35KHz. Small size, high efficiency, and low operating current make these converters ideal for battery-powered applications.
TelCom Semiconductor, Inc.
Power Management
Hot New Products
New Products
TCM850 / 851 / 852 / 853 GaAs FET Bias Supplies
FEATURES
Applications
+4.5V to +10V
CHARGE PUMP
LINEAR REGULATOR IN
SHUTDOWN
SHDN FB
V- OUT - 0.5V to - 9.0V (or - 4.1V Fixed)
Fixed - 4.1V or Adjustable - 0.5V to - 9V Output at 5mA 4.5V to 10V Input Voltage Range Low Output Voltage Ripple: TCM850-852 ............................... 2mVp-p TCM853 ................................... 1mVp-p 100kHz Charge Pump Switching Frequency Optional External Synchronizing Clock Input (TCM852) Logic Level Shutdown Mode ................. 0.5µA Typ. Low Cost, 8-Pin SOIC Package
Selection Guides Cross Reference
V- OUT
TCM850 TCM851 TCM852 TCM853
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- 9.0V with a simple external resistor divider connected from the output to the FB input. The output voltage of the TCM853 is programmable with an external positive control voltage. While these devices are targeted at GaAs FET bias in cellular phones and wireless data loggers, they also are suitable in any application requiring a precision source of negative voltage, such as LCD contrast controls and negative regulated supplies for op amps and other analog circuits.
General Information
Power Management
Hot New Products
TC1121 100mA Charge Pump Voltage Converter with Shutdown
FEATURES
with the addition of an external capacitor from OSC (pin 7) to ground. The TC1121 also can be driven from an external clock connected OSC if so desired. Typical supply current at 10KHz is 200µA, and falls to less than 2µA when the shutdown input (SHDN) is brought low, regardless of whether the internal or an external clock is used. The TC1121 is available in an industry-standard 8-pin SOIC package or a space-saving 8-pin MSOP package (which occupies half the space of an 8-pin SOIC). Small size, high output curren, t and shutdown mode capability make the TC1121 ideal for both line-and battery-powered applications.
TelCom Semiconductor, Inc.
Power Management
Hot New Products
New Products
TC7660H High Frequency DC-to-DC Converter
FEATURES
Applications Selection Guides Cross Reference
General Information
TelCom Semiconductor, Inc.
Power Management
Hot New Products
TC1014 / 1015 / 1185 50mA, 100mA, and 150mA CMOS LDOs
FEATURES
VOUT @ 50mA (TC1014), VOUT @ 100mA (TC1015) 470pF VOUT BYPASS 1µF VOUT @ 150mA (TC1185)
TC1014 TC1015 TC1185
VIN GND SHDN
Optional
ON OFF Battery
From Power Control Logic
The TC1014 / 1015 / 1185 are CMOS upgrades to bipolar low dropout regulators, such as the LP2980. CMOS construction guarantees no ground current, as in bipolar regulators, resulting in significantly lower supply current over the entire load range. A reference bypass input also is provided for excellent low noise operation.
Maximum output currents of 50mA (TC1014), 100mA (TC1015), and 150mA (TC1185) are available. Typical dropout voltage is 85mV (TC1014), 180mV (TC1015), and 270mV (TC1185) at full load. An output capacitor of only 1µF is required for stability. The TC1014 / 1015 / 1185 enter a low power shutdown state (supply current 0.5µA max) when SHDN is brought low.
TelCom Semiconductor, Inc.
Power Management
Hot New Products
New Products
TC1054 / 1055 / 1186 50mA, 100mA, and 150mA CMOS LDOs with Shutdown and ERROR Output
FEATURES
VOUT 1µF
Applications
ERROR
TC1054 TC1055 TC1186
VIN GND SHDN
Selection Guides Cross Reference
ERROR
Battery
ON OFF
From Power Control Logic
The TC1054 / 1055 / 1186 are CMOS upgrades to bipolar low dropout regulators such as the LP2980. CMOS construction guarantees no ground current as in bipolar regulators, resulting in significantly lower supply current over the entire load range. Maximum output currents of 50mA (TC1054), 100mA (TC1055), and 150mA (TC1186) are available. Typical dropout voltage is 85mV (TC1054), 180mV (TC1055), and 270mV (TC1186) at full load. An output capacitor of only 1µF is required for stability.
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General Information
Power Management
Hot New Products
TC1070 / 1071 / 1187 50mA, 100mA, and 150mA Adjustable CMOS LDOs
FEATURES
VOUT R1 1µF
R2 VOUT ADJ
TC1070 TC1071 TC1187
VIN GND SHDN
ON Battery OFF
From Power Control Logic
The TC1070 / 1071 / 1187 are adjustable CMOS upgrades to bipolar low dropout regulators. Output voltage is programmed with a simple external resistor divider from VOUT to ADJ. CMOS construction guarantees no ground current, as in bipolar regulators, resulting in significantly lower supply current over the entire load range.
Maximum output currents of 50mA (TC1070), 100mA (TC1071), and 150mA (TC1187) are available. Typical dropout voltage is 85mV (TC1070), 180mV (TC1071), and 270mV (TC1187) at full load. An output capacitor of only 1µF is required for stability. The TC1070 / 1071 / 1187 enter a low power shutdown state (supply current 0.5µA max) when SHDN is brought low.
TelCom Semiconductor, Inc.
Power Management
Hot New Products
New Products
TC1072 / 1073 50mA and 100mA LDOs with Shutdown, ERROR Output, and VREF Bypass
Applications
FEATURES
470pF
Selection Guides Cross Reference
BYPASS
ERROR
TC1072 TC1073
VIN GND SHDN
ERROR
ON Battery OFF
From Power Control Logic
The TC1072 / 1073 are CMOS upgrades to bipolar low dropout regulators such as the LP2980. CMOS construction guarantees no ground current, as in bipolar regulators, resulting in significantly lower supply current over the entire load range. Maximum output currents of 50mA (TC1072) and 100mA (TC1073) are available. Typical dropout voltage is 85mV (TC1072) and 180mV (TC1073) at full load. An output capacitor of only 1µF is required for stability. A reference bypass input is provided for excellent low noise operation.
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General Information
Power Management
Hot New Products
TC1107 300mA CMOS LDO with Shutdown
FEATURES
ON OFF From Power Control Logic Battery VOUT NC NC SHDN
TC1107
VOUT GND NC BYPASS
470pF
VOUT 1µF
A reference bypass input also is included for very low noise operation. An output capacitor of only 1µF is required for stability. It is available in an industry-standard 8-pin SOIC package or in a space-saving 8-pin MSOP package (which takes up half the space of an 8-pin SOIC).
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Power Management
Hot New Products
New Products
TC1108 300mA CMOS LDO
FEATURES
Applications Selection Guides Cross Reference
TC1108
VIN GND VOUT
VOUT @ 300mA Battery 1µF
General Information
The TC1108 is a CMOS LDO with very low dropout voltage. CMOS construction guarantees no ground current, as in bipolar regulators, resulting in significantly lower supply current over the entire load range. An output capacitor of only 1µF is required for stability. The TC1108 is available in several fixed voltages and is available in an SOT-223 power tab package.
TelCom Semiconductor, Inc.
Power Management
Hot New Products
TC1173 300mA CMOS LDO with Shutdown, ERROR Output, and Bypass
FEATURES
From Power OFF Control Logic
Battery VIN NC SHDN ERROR
ERROR
TC1173
VOUT GND NC BYPASS
1 ERROR 470pF 0
VOUT 1µF
signal (with the addition of an external RC network). Supply current is reduced to 0.5µA (max) and VOUT and ERROR falls to zero when the shutdown input is low. The TC1173 incorporates both over-temperature and over-current protection. The TC1173 is stable with an output capacitor of only 1µF and has a maximum output current of 300mA.
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Power Management
Hot New Products
New Products
TC1174 300mA Adjustable CMOS LDO with Shutdown and VREF Bypass
FEATURES
ON From Power OFF Control Logic Battery VIN NC SHDN BYPASS 470pF
Applications
TC1174
VOUT GND NC ADJ
Selection Guides Cross Reference
VOUT R1 1µF R2
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in load. Supply current is reduced to 0.5µA (max) and VOUT falls to zero when the shutdown input is low. The TC1174 incorporates both overtemperature and over-current protection. The TC1174 is stable with an output capacitor of only 1µF and has a maximum output current of 300mA.
General Information
Power Management
Hot New Products
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New Products
Applications
Selection Guides Cross Reference
General Information
TelCom Semiconductor, Inc.
System Management
Hot New Products
TC32M 3-Pin Processor Supervisor with Watchdog Timer
FEATURES
s Incorporates the Functionality of the Industry Standard TC1232 (Processor Monitor, Watchdog and Manual Override RESET Controller) into a Small, Lower Cost Package Guards Against Unstable Processor Operation Resulting from Power "Brown-Out" Automatically Halts and Restarts an Out-of-Control Microprocessor Output can be Wire-ORed, or Hooked to Manual RESET Push-button Switch Space-Saving 3-Pin TO-92 or SOT-223 Package
Supply Monitor
TC32M
Watchdog
Reset Timeout Generator
RESET to Processor STROBE from Processor
Pushbutton Interface
voltage is out-of-tolerance. Once the supply is within tolerance, the TC32M maintains the processor in reset for an additional 250msec to allow time for the system to stabilize. During normal system operation, the processor must apply pulses to the TC32M at a prescribed rate. Should the processor fail to do this, a system fault is indicated, and the TC32M issues a momentary processor reset. The output of the TC32M may be wireORed with an external auxiliary reset signal or push-button switch for reset override control. The TC32M is ideal for applications which require a fully-integrated processor supervisor such as battery-powered computers and controllers, automotive instruments, embedded controllers, and critical microprocessor power monitoring.
TelCom Semiconductor, Inc.
System Management
Hot New Products
New Products
TC70 / 71 Micromaster - System Supervisor with Power Supply Monitor, Watchdog, and Battery Backup
FEATURES
Chip Gated ble Ena
CEI FAIL CEO
BAT T CCI
Applications
Ba Swit ttery chin g
Su Mo pply nito r
dog Watchble Disa
Push Bu Rese tton t
Maximum Functional Integration: Precision Power Supply Monitor, Watchdog Timer, External RESET Override, Threshold Detector and Battery Backup Controller in an 8-Pin Package Generates Power-on RESET and Guards Against Unstable Processor Operation Resulting from Power "Brown-Out" Automatically Halts and Restarts an Out-of-Control Microprocessor Output Can Be Wire-ORed, or Hooked to Manual RESET Push-button Switch Watchdog Disable Pin for Easier Prototyping (TC70) Voltage Monitor for Power Fail or Low Battery Warning (TC71) Available in 8-Pin Plastic DIP or 8-Pin SOIC Packages Cost Effective
Selection Guides Cross Reference
The TC70 / 71 are fully-integrated power supply monitors, watchdogs and battery backup circuits in a space-saving 8-pin package. When power is initially applied, the TC70 / 71 hold the processor in its reset state for a minimum of 500msec after VCC is in tolerance to ensure stable system start-up. After start-up, processor sanity is monitored by the on-board watchdog circuit. The processor must provide periodic highto-low level transitions to the TC70 / 71 to verify proper execution. Should the processor fail to supply this signal within the specified timeout peTelCom Semiconductor, Inc.
riod, an out-of-control processor is indicated and the TC70 / 71 issue a momentary processor reset as a result. The TC70 also features a watchdog disable pin to facilitate system test and debug. The output of the TC70 / 71 can be wire-ORed to a push-button switch (or electronic signal) to reset the processor. When connected to a pushbutton switch, the TC70 / 71 provides contact debounce. The integrated battery backup circuit on board the TC70 / 71 converts CMOS RAM into nonvolatile memory by first write-protecting, then switching the VCC line of the RAM to an external battery. The TC71 incorporates an additional 1.3V threshold detector for power fail warning, low battery detection, or to monitor other system voltages.
General Information
System Management
Hot New Products
TCM809 / 810 3-Pin µP RESET Monitors
3V OR 5V SUPPLY
FEATURES
PROCESSOR
TCM809 TCM810 RESET VDD GND
The TCM809 / 810 reject fast transient glitches on the power supply voltage, preventing unwanted system resets. A variety of preset detection voltages accommodate 3V, 3.3V, and 5V system supply applications. Low supply current, small size, reliable operation, and low installed cost make the TCM809 / 810 desirable for all microcontroller / microprocessor applications.
TelCom Semiconductor, Inc.
System Management
Hot New Products
New Products
TC1232 Microprocessor Supervisory Circuit
FEATURES
RST VCC TOL
Applications
RESET GENERATOR
Precision Voltage Monitor .... Adjustable: +4.5V or +4.75V Reset Pulse Width ....................... 250msec Min No External Components Adjustable Watchdog Timer . 150msec, 600msec or 1.2sec Debounced Manual Reset Input for External Override
Selection Guides Cross Reference
PB RST
DEBOUNCE
TC1232 Microprocessor Monitor
WATCHDOG TIMER
WATCHDOG TIMEBASE SELECT
The TC1232 series is ideal for applications which require a fullyintegrated processor supervisor, such as computers, microprocessor-based controllers, process instrumentation, automotive instruments, and critical microprocessor power monitoring.
General Information
TelCom Semiconductor, Inc.
New Products
TelCom Semiconductor, Inc.
Evaluation / Development Kits
Hot New Products
TC500EV
FEATURES
TO RS232 TERMINAL TC232 RS232 INTERFACE MICROCONTROLLER CONFIG. BLOCKS TC500 USER PROTOTYPING AREA USER I / O HEADERS TC520A SERIAL INTERFACE
DIFF. INPUT
TC514
4 CHANNEL DIFF. INPUT
TC7660
TC530EV
FEATURES
TO RS232 TERMINAL
TC232 RS232 INTERFACE
MICROCONTROLLER
TC534
4 CHANNEL DIFF. INPUT
8 DC-DC CONVERTER
All Trademarks and Trade Names are the property of their respective owners.
TelCom Semiconductor, Inc.
USER PROTOTYPING AREA
Evaluation / Development Kits
Hot New Products
New Products
TC642EV
FEATURES
VDD REG1 2 IN OUT 3
VDD External Sensor Input
BP1 VDD
BP2 GND
BP3 FAN FAN
TC55RP3002
C3 1µF
Applications
POT 1 (Speed Control) INT
POT 2 (Min Speed / Shutdown Level)
EXT C7 0.01µF
LM385-1.2
TP5 2 642 C1 1µF SHDN / RESET EXT SHDN / RESET TB4 C2 JB4 1 JB1 3 4 3 VMIN (VAS) 2 2 CF VOUT 7 646
TO-220
SOT-23
VDD VIN VDD 8 TP2
TO-92 2N222A
C8 4.7µF
TC642 (TC646)
FAULT 6 TP6
R2 1.1k
Selection Guides Cross Reference
4 TP1 C6 0.01µF VDD Q4 2N3906 R1 620 GND SENSE
5 TP4 R5 30k
C5, 0.1µF R4
R3 4.7 Ohms
FAULT Indicates normal value
TC1015EV
FEATURES
TP3 VIN C1 BJ2 VIN
BNC1 VIN
TP4 GND TP3 VIN C2 P1 VOUT
TP1 VOUT
BJ1 VOUT J3 TP9 VIN R5 TP5
BNC3 VIN
TP9 VIN P2 VOUT TP7 VOUT
TP10 GND
BJ6 VOUT C6
R7 R11
U1 TP8 BJ8 GND TP11 J4 SHDN TP10 GND
BJ3 GND BJ5 GND
J2 BJ4
TP4 GND
TP6 SHDN
BJ7 VIN
General Information
Circuit #1 DC Testing
Circuit #2 AC Testing
PROTOTYPE AREA
Evaluation / Development Kits
Hot New Products
TCM850EV
Scope JB1 Receptacle Power VIN VOUT OSC Input
Scope JB7 Power Receptacle
FEATURES
s s s s s s Separate Evaluation Sites for TCM850, TCM851, TCM852, TCM853 Optimized Layout Maintains Less than 2mV p-p Output Ripple User Prototyping Area Scope Probe Receptacles at Each Test Site for Accurate Ripple Measurement On-board Control Voltage Pot for TCM853 Convenient User Test Points