BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER Designed primari

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BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER Designed primari

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BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
Designed primarily with vacuum-fluorescent displays, UCN5811A smart power BiMOS driver features low-output saturation voltages high output switching speed. These devices contain CMOS shift registers, data latches, control circuitry, bipolar high-speed sourcing outputs with DMOS active pull-down circuitry. high-speed shift register data latches allow direct interface with microprocessor-based systems. CMOS serial data output enables cascade connections applications requiring additional drive lines. UCN5811A features output ratings, allowing used many other peripheral power driver applications. used improved replacement SN75512B. Allegro devices require special power-up sequencing. UCN5811A been designed with BiMOS logic improved data entry rates. With supply, will typically operate above MHz. significantly higher speeds obtained. this device with require appropriate pull-up resistors ensure proper input logic high. This device supplied 20-pin plastic dual in-line package. operated over ambient temperature range -20°C +85°C. Copper lead frames output saturation voltages allow outputs operated continuously ambient temperatures 76°C.
Data Sheet 26182.20A
BLANKING SERIAL DATA SERIAL DATA LOGIC SUPPLY CLOCK STROBE
REGISTER LATCHES
BLNK
LOAD SUPPLY GROUND
Dwg. PP-029-5
FEATURES
ABSOLUTE MAXIMUM RATINGS 25°C
Logic Supply Voltage,VDD Driver Supply Voltage, Continuous Output Current, IOUT Input Voltage Range, -0.3 Package Power Dissipation, Graph Operating Temperature Range, -20°C +85°C Storage Temperature Range, -55°C +150°C
Data Input Rate Low-Power CMOS Logic Latches High-Speed Source Drivers Active Pull-Downs Low-Output Saturation Voltages Improved Replacement SN75512B
Always order complete part number:
UCN5811A
BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
ALLOWABLE PACKAGE POWER DISSIPATION WATTS
FUNCTIONAL BLOCK DIAGRAM
CLOCK SERIAL DATA LOGIC SUPPLY SERIAL DATA
SERIAL-PARALLEL SHIFT REGISTER
STROBE
LATCHES
BLANKING BIPOLAR
LOAD SUPPLY
GROUND
AMBIENT TEMPERATURE
Dwg. GS-004-1
Dwg. FP-013-1
TYPICAL INPUT CIRCUIT
TIMING WAVESHAPES
Dwg. EP-010-5
TYPICAL OUTPUT DRIVER
Dwg. W-184
Dwg. W-182
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright 1985, 1996, Allegro MicroSystems, Inc.
BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
ELECTRICAL CHARACTERISTICS +25°C, (unless otherwise noted).
Limits Characteristic Output Leakage Current Output Voltage Symbol ICEX VOUT(H) VOUT(L) Test Conditions VOUT +70°C IOUT IOUT IOUT Output Pull-Down Current IOUT(L) VOUT VOUT Input Voltage VIN(1) VIN(0) Input Current IIN(1) IIN(0) Serial Data Output Voltage VOUT(H) VOUT(L) Maximum Clock Frequency Supply Current fclk IDD(H) IDD(L) IBB(H) IBB(L) Blanking Output Delay tPHL tPLH Output Fall Time Output Rise Time Outputs High Outputs Outputs High, Load Outputs IOUT -200 IOUT Mln. -0.3 Typ. -5.0 58.5 0.05 -0.05 1000 Max. +0.8 -0.5 1250 Limits Min. 10.5 -0.3 11.7 Typ. -5.0 58.5 -1.0 11.8 Max. 12.3 +0.8 -1.0 Units
Negative current defined coming (sourcing) specified device pin.
BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
CLOCK DATA STROBE BLANKING OUTN
Dwg. 12,649A
Serial Data present input transferred shift register logic logic transition CLOCK input pulse. succeeding CLOCK pulses, registers shift data information towards SERIAL DATA OUTPUT. SERIAL DATA must appear input prior rising edge CLOCK input waveform. Information present register transferred respective latch when STROBE high (serial-to-parallel conversion). latches will continue accept data long STROBE held high. Applications where latches bypassed (STROBE tied high) will require that BLANKING input high during serial data entry. When BLANKING input high, output source drivers disabled (OFF); DMOS sink drivers information stored latches affected BLANKING input. With BLANKING input low, outputs controlled state their respective latches.
TIMING CONDITIONS
+25°C,VDD Logic Levels Ground)
Minimum Data Active Time Before Clock Pulse (Data Set-Up Time) Minimum Data Active Time After Clock Pulse (Data Hold Time) Minimum Data Pulse Width Minimum Clock Pulse Width Minimum Time Between Clock Activation Strobe Minimum Strobe Pulse Width Typical Time Between Strobe Activation Output Transistion
TRUTH TABLE
Serial Shift Register Contents Data Clock Input Input IN-1 RN-2 RN-1 RN-2 RN-1 RN-1 Serial Data Strobe Output Input RN-1 RN-1
Irrelevant
Latch Contents IN-1 Blanklng
Output Contents IN-1
RN-1 PN-1 PN-1
Logic Level
PN-1
High Logic Level
Present State
Previous State
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
UCN5811A
Dimensions Inches
0.014 0.008
0.430 0.280 0.240
0.300
0.070 0.045
0.100 1.060 0.980
0.005
0.210
0.015
0.150 0.115 0.022 0.014
Dwg. MA-001-20
NOTES: Exact body lead configuration vendor's option within limits shown. Lead spacing tolerance non-cumulative. Lead thickness measured seating plane below.
BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
UCN5811A
Dimensions Millimeters (Based 25.4
0.355 0.204
10.92 7.11 6.10
7.62
1.77 1.15
2.54 26.92 24.89
0.13
5.33
0.39
3.81 2.93 0.558 0.356
Dwg. MA-001-20
NOTES: Exact body lead configuration vendor's option within limits shown. Lead spacing tolerance non-cumulative. Lead thickness measured seating plane below.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
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BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER
BiMOS (Series 5800) DABiC (Series 6800) INTELLIGENT POWER INTERFACE DRIVERS SELECTION GUIDE
Function
SERIAL-INPUT LATCHED DRIVERS 8-Bit (saturated drivers) 8-Bit 8-Bit 8-Bit 9-Bit 10-Bit (active pull-downs) 12-Bit (active pull-downs) 20-Bit (active pull-downs) 32-Bit (active pull-downs) 32-Bit 32-Bit (saturated drivers) PARALLEL-INPUT LATCHED DRIVERS 4-Bit 8-Bit 8-Bit SPECIAL-PURPOSE FUNCTIONS Unipolar Stepper Motor Translator/Driver Addressable 28-Line Decoder/Driver
Output Ratings
-120
Part Number
5895 5821 5841 5842 5829 5810-F 5811 5812-F 5818-F 5833 5832
5800 5815 5801
1.25
5804 6817
Current maximum specified test condition, voltage maximum rating. specification sustaining voltage limits. Negative current defined coming (sourcing) output.
Complete part number includes additional characters indicate operating temperature range package style. Internal transient-suppression diodes included inductive-load protection.
Allegro MicroSystems, Inc. reserves right make, from time time, such departures from detail specifications required permit improvements design products. Components made under military approvals will accordance with approval requirements. information included herein believed accurate reliable. However, Allegro MicroSystems, Inc. assumes responsibility use; infringements patents other rights third parties which result from use.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

BiMOS 12-BIT SERIAL-INPUT, LATCHED SOURCE DRIVER Designed primari

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