Pin-Selectable, Power-Supply Supervisory Circuit MAX6886 pin-sele

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Pin-Selectable, Power-Supply Supervisory Circuit MAX6886 pin-sele

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19-3587; 2/05
Pin-Selectable, Power-Supply Supervisory Circuit
MAX6886 pin-selectable, multivoltage supply supervisor monitors voltage-detector inputs watchdog input, asserting RESET when inputs drop below selected voltage thresholds watchdog timer expires. Manual reset margin disable inputs offer additional flexibility. Five logic inputs select MAX6886 thresholds. Logic inputs select supply tolerance 10%) factory-set threshold settings. Connect external capacitors factory default setting watchdog timeout periods reset time delay. MAX6886 available 20-pin thin (5mm 0.8mm) package operates over extended -40°C +85°C temperature range.
Features
Pin-Selectable Undervoltage Detector Thresholds Capacitor-Adjustable Reset Watchdog Timeout Periods Factory Default Reset Watchdog Timeout Periods Margining Disable Manual Reset Controls -40°C +85°C Operating Temperature Range Small 20-Pin Thin Package External Components Threshold Accuracy
MAX6886
Applications
Multivoltage Systems Telecom Networking Servers/Workstations/Storage Systems
Configuration appears data sheet.
PART MAX6886ETP
Ordering Information
TEMP RANGE -40°C +85°C PIN-PACKAGE Thin CODE T2055-5
Typical Operating Circuit
DC-DC DC-DC DC-DC 3.3V 2.5V DC-DC 1.5V 1.2V 1.8V
3.3V ALWAYS
RESET MARGIN RESET LOGIC OUTPUT
MAX6886
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
Pin-Selectable, Power-Supply Supervisory Circuit MAX6886
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced GND.) IN1-IN6, VCC, RESET, SRT, .-0.3V TH0-TH4, WDI, MARGIN .-0.3V .-0.3V Input/Output Current (all pins).±20mA Continuous Power Dissipation +70°C) 20-Pin Thin (derate 21.3mW/°C above +70°C) .1702mW Maximum Junction Temperature .+150°C Operating Temperature Range .-40°C +85°C Storage Temperature Range .-65°C +150°C Lead Temperature (soldering, 10s) .+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated operational sections specifications implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN1-VIN4 2.7V 5.8V, GND, TH0-TH4 MARGIN DBP, -40°C +85°C, unless otherwise noted. Typical values +25°C.) (Notes
PARAMETER Operating Voltage Range (Note Supply Current Digital Bypass Voltage Threshold Accuracy (Table Threshold Hysteresis Threshold Tempco Input Impedance Input Leakage Current Power-Up Delay RESET Delay Reset Default Timeout Period Reset Adjustable Timeout Period Adjustable Timeout Current Default Timeout Threshold Adjustable Timeout Threshold Adjustable Timeout Discharge Threshold Adjustable Timeout OutputLow Discharge Current RESET Output RESET Output Open-Drain Leakage Current VDBP VTH-HYS VTH/°C tD-PO tD-R tRP-ADJ ISRT VSRT-DEF VSRT-ADJ VSRT-DIS ISRT-DIS VOLRESET ILKG VIN_ highest VIN1-IN4 VIN_ (not ADJ), thresholds adjustable IN5, IN1-IN4 adjustable thresholds 2.5V falling/rising, 100mV overdrive VSRT CSRT 47nF VSRT VSRT VSRT-DEF, selects reset default (Note (Note VSRT 0.3V ISINK 4mA, output asserted Output tri-stated 0.95 -150 IN1-IN6, falling +25oC +85oC -40oC +85oC SYMBOL CONDITIONS Voltage either IN1-IN4 guarantee part fully operational VIN1 5.8V, IN2-IN6 GND, load 2.48 -1.5 +150 1.25 1.00 1.05 2.55 2.67 +1.5 UNITS ppm/°C
Pin-Selectable, Power-Supply Supervisory Circuit
ELECTRICAL CHARACTERISTICS (continued)
(VIN1-VIN4 2.7V 5.8V, GND, TH0-TH4 MARGIN DBP, -40°C +85°C, unless otherwise noted. Typical values +25°C.) (Notes
PARAMETER MARGIN, TH0-TH4, Input Voltage Input Pulse Width Glitch Rejection RESET Delay Internal Pullup Current MARGIN Internal Pullup Current TH0-TH4 Input Current Pulldown Current Input Pulse Width Watchdog Default Timeout Period Watchdog Adjustable Timeout Period Adjustable Timeout Current Default Timeout Threshold Adjustable Timeout Threshold Adjustable Timeout Discharge Threshold Adjustable Timeout OutputLow Discharge Current IWDI tWDI tWD-ADJ ISWT VSWT-DEF VSWT-ADJ VSWT-DIS ISWT-DIS VSWT CSWT 0.33µF VSWT VSWT-DEF, selects watchdog default timeout (Note (Note VSWT 0.3V Initial mode Normal mode Initial mode Normal mode VWDI 0.6V tD-MR IMARGIN 1.4V VMARGIN 1.4V -100 92.16 1.44 53.7 0.93 0.95 102.4 82.5 1.43 1.25 1.00 112.64 1.76 111.9 1.94 1.05 SYMBOL +100 CONDITIONS UNITS
MAX6886
Note Note Note Note Note
Device supplied from IN1-IN4 VCC. 100% production tested +25°C +85°C. Specifications -40°C guaranteed design. internal supply voltage, measured VCC, equals maximum IN1-IN4. External capacitor charged IS_T when VS_T-DIS VS_T VS_T-ADJ. External capacitor discharged IS_T-DIS down VS_T-DIS after VS_T reaches VS_T-ADJ.
Pin-Selectable, Power-Supply Supervisory Circuit MAX6886
Typical Operating Characteristics
(VIN1-VIN4 GND, TH0-TH4 MARGIN DBP, +25°C, unless otherwise noted.)
IN1-IN4 SUPPLY CURRENT IN1-IN4 SUPPLY VOLTAGE
MAX6886 toc01
SUPPLY CURRENT SUPPLY VOLTAGE
MAX6886 toc02
RESET TIMEOUT PERIOD TEMPERATURE (DEFAULT 200ms)
TIMEOUT PERIOD (ms)
MAX6886 toc03
1.00 0.95 SUPPLY CURRENT (mA) 0.90 0.85 0.80 0.75 0.70 SUPPLY VOLTAGE -40°C +25°C
1.00 0.95 SUPPLY CURRENT (mA) +85°C 0.90 0.85 0.80 0.75 0.70 SUPPLY VOLTAGE -40°C +25°C
+85°C
TEMPERATURE (°C)
RESET PROPAGATION DELAY TEMPERATURE
MAX6886 toc04
WATCHDOG TIMEOUT PERIOD TEMPERATURE (DEFAULT 1.6s)
MAX6886 toc05
NORMALIZED THRESHOLD TEMPERATURE
1.004 NORMALIZED THRESHOLD 1.003 1.002 1.001 1.000 0.999 0.998 0.997 0.996 0.995
MAX6886 toc06
PROPAGATION DELAY (µs)
100mV OVERDRIVE
1.700 1.675 TIMEOUT PERIOD 1.650 1.625 1.600 1.575 1.550 1.525 1.500
1.005
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
MAXIMUM TRANSIENT THRESHOLD OVERDRIVE
MAX6886 toc07
OUTPUT-VOLTAGE SINK CURRENT
OUTPUT-VOLTAGE (mV)
MAX8666 toc08
MAXIMUM TRANSIENT DURATION (µs) RESET ASSERTS ABOVE THIS LINE
1000
THRESHOLD OVERDRIVE (mV)
SINK CURRENT (mA)
Pin-Selectable, Power-Supply Supervisory Circuit
Typical Operating Characteristics (continued)
(VIN1-VIN4 GND, TH0-TH4 MARGIN DBP, +25°C, unless otherwise noted.)
RESET OUTPUT PROPAGATION DELAY TEMPERATURE
MAX6886 toc09
MAX6886
RESET TIMEOUT PERIOD TEMPERATURE (CRST 0.047µF)
MAX6886 toc10
WATCHDOG TIMEOUT PERIOD TEMPERATURE (CSWT 0.33µF)
TIMEOUT PERIOD
MAX6886 toc11
3.00 2.75 PROPAGATION DELAY (µs) 2.50 2.25 2.00 1.75 1.50 1.25 1.00
TIMEOUT PERIOD (ms)
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
RESET TIMEOUT PERIOD CSRT
MAX6886 toc12
WATCHDOG TIMEOUT PERIOD CSWT
MAX6886 toc13
10,000
10,000
1000 TIMEOUT PERIOD (ms)
1000 TIMEOUT PERIOD (ms)
CSRT (nF) 1000
CSWT (nF) 1000
Description
NAME FUNCTION Open-Drain, Active-Low Reset Output. RESET asserts when input voltage falls below selected threshold, watchdog timer expires, when pulled low. RESET remains asserted default (200ms) adjustable reset timeout period after assertion-causing conditions cleared. external pullup resister required. Reset Timeout Adjust Input. Connect external capacitor between reset timeout period. timeout period calculated 4.348E6 CSRT (tRP seconds CSRT Farads). factory default period 200ms connect VCC. Watchdog Timeout Adjust Input. Connect external capacitor between watchdog timeout period. adjustable timeout period calculated 4.348E6 CSWT (tWD seconds CSWT Farads). Disable watchdog timer connecting GND. Connect factory-default normal initial periods 1.6s 102.4s, respectively.
RESET
Pin-Selectable, Power-Supply Supervisory Circuit MAX6886
Description (continued)
NAME Ground Watchdog Timer Input. Logic input watchdog timer function. strobed with valid low-to-high high-to-low transition within selected timeout period, RESET asserts. internally pulled down through 10µA current sink. Active-Low Manual Reset Input. Pull assert RESET. RESET will remain asserted preset/adjustable reset timeout period when driven high. Leave unconnected connect unused. internally pulled through 10µA current source. Margin Input. When MARGIN pulled low, RESET held existing state independent subsequent changes monitored input voltages watchdog timer expiration. MARGIN internally pulled through 10µA current source. MARGIN overrides both asserted same time. Threshold Selection Input Logic input select desired threshold. Connect DBP. Table available thresholds. Input internal pullup pulldown. Threshold Selection Input Logic input select desired threshold. Connect DBP. Table available thresholds. Input internal pullup pulldown. Threshold Selection Input Logic input select desired threshold. Connect DBP. Table available thresholds. Input internal pullup pulldown. Threshold Selection Input Logic input select desired threshold. Connect DBP. Table available thresholds. Input internal pullup pulldown. Threshold Selection Input Logic input select desired threshold. Connect DBP. Table available thresholds. Input internal pullup pulldown. Internal Power-Supply Voltage. Bypass with ceramic capacitor close device possible. supplies power internal circuitry. internally powered from highest monitored IN1-IN4 voltages. supply power external circuitry. externally supply VCC, Powering MAX6886 section. Digital Bypass Voltage. internally generated voltage supplies power internal logic output RESET. Connect capacitor from close device possible. supply power external circuitry. Input Voltage Detector Select undervoltage threshold using TH0-TH4. Table cannot supply power device. improved noise immunity, bypass with 0.1µF capacitor installed close device possible. Input Voltage Detector Select undervoltage threshold using TH0-TH4. Table cannot supply power device. improved noise immunity, bypass with 0.1µF capacitor installed close device possible. Input Voltage Detector Select undervoltage threshold using TH0-TH4. Table improved noise immunity, bypass with 0.1µF capacitor installed close device possible. Power device through IN1-IN4 (see Powering MAX6886 section). Input Voltage Detector Select undervoltage threshold using TH0-TH4. Table improved noise immunity, bypass with 0.1µF capacitor installed close device possible. Power device through IN1-IN4 (see Powering MAX6886 section). Input Voltage Detector Select undervoltage threshold using TH0-TH4. Table improved noise immunity, bypass with 0.1µF capacitor installed close device possible. Power device through IN1-IN4 (see Powering MAX6886 section). Input Voltage Detector Select undervoltage threshold using TH0-TH4. Table improved noise immunity, bypass with 0.1µF capacitor installed close device possible. Power device through IN1-IN4 (see Powering MAX6886 section). Exposed Paddle. Internally connected GND. Connect leave floating. FUNCTION
MARGIN
Pin-Selectable, Power-Supply Supervisory Circuit
Functional Diagram
MARGIN
MAX6886
*IN_ DETECTOR
DETECTOR DETECTOR LOGIC ARRAY DETECTOR DETECTOR DETECTOR
RESET
2.55V VIRTUAL DIODES REFERENCE
MAX6886
*SEE VOLTAGE-DETECTOR INPUTS (IN_) SECTION ADJUSTABLE INPUTS.
Pin-Selectable, Power-Supply Supervisory Circuit MAX6886
Detailed Description
MAX6886 pin-selectable, multivoltage supply supervisor monitors voltage-detector inputs watchdog input. RESET asserts when configured input thresholds have been reached, asserted, watchdog timer expires. MARGIN allows system tested without RESET being asserted. Logic inputs TH0-TH4 select threshold sets inputs IN1-IN6 (see Table Threshold Options). Inputs Table that contain inputs allow external resistor voltage-dividers connected create additional thresholds. RESET open-drain acitve-low output asserts when low, watchdog timer expires, voltage IN1-IN6 falls below respective threshold. default RESET time delay 200ms custom timeout periods connecting external capacitor from GND. default watchdog normal initial timeout periods 1.6s 102.4s, respectively. normal initial watchdog timeout periods adjusted connecting external capacitor from GND.
Inputs
MAX6886 contains multiple logic voltagedetector inputs. Each voltage-detector input monitored undervoltage thresholds. Voltage-Detector Inputs (IN_) MAX6886 offers several monitor options with both pin-selectable adjustable reset thresholds. threshold voltage each adjustable input typically 0.6V. monitor voltage >0.6V, connect resistor-divider network circuit shown Figure VIN_TH (Equation where VIN_TH desired reset threshold voltage respective input threshold (0.6V). Resistors have very high values minimize current consumption low-leakage currents. some conveniently high value (10k, example) calculate based desired reset threshold voltage, using following formula: (VIN_TH/VTH Threshold Logic Inputs (TH0-TH4) TH0-TH4 logic inputs select undervoltage thresholds tolerance IN1-IN6 voltage-detector inputs. TH0-TH4 define unique options supervisor functionality. Connect respective logic logic Tables show unique threshold options available. sets threshold tolerance undervoltage threshold. logic selects supply tolerance logic selects supply tolerance. MAX6886 logic determines which thresholds should used
Powering MAX6886
MAX6886 derives power from voltage-detector inputs IN1-IN4 through externally supplied VCC. virtual diode-ORing scheme selects positive input that supplies power device (see Functional Diagram). highest input voltage IN1-IN4 supplies power device. IN1-IN4 must least 2.7V ensure proper operation. Internal hysteresis ensures that supply input that initially powered device continues power device when multiple input voltages within 50mV each other. powers analog circuitry bypass connection MAX6886 internal supply. Bypass with ceramic capacitor installed close device possible. internal supply voltage, measured VCC, equals maximum IN1-IN4. externally supplied, must least 200mV higher than voltage applied IN1-IN4 must brought first. always powers device when factory "ADJ." internally generated provide power external circuitry. MAX6886 generates digital supply voltage internal logic circuitry RESET. Bypass with ceramic capacitor installed close device possible. nominal output voltage 2.55V. provide power external circuitry.
MAX6886
0.6V
Figure Adjusting Monitored Threshold
Pin-Selectable, Power-Supply Supervisory Circuit
inputs only power-up. voltage-divider circuit Figure Equation threshold user-adjustable inputs described Voltage-Detector Inputs (IN_) section. Manual Reset (MR) Many microprocessor-based (µP) products require manual reset capability allow operator external logic circuitry initiate reset. manual reset input (MR) connected directly switch without external pullup resistor debouncing network. internally pulled DBP. Leave unconnected used. internally pulled through 10µA current source. designed reject fast, falling transients (typically 100ns pulses) must held minimum assert RESET. After transitions from high, RESET remains asserted duration timeout period.
MAX6886
Table Nominal Monitored Supply Voltages
SELECTION TH4-TH0* 11111 11110 11101 11100 11011 11010 11001 11000 10111 10110 10101 10100 10011 10010 10001 10000 01111 01110 01101 01100 01011 01010 01001 01000 00111 00110 00101 00100 00011 00010 00001 00000 NOMINAL SUPPLY VOLTAGES SUPPLY TOLERANCE
Pin-Selectable, Power-Supply Supervisory Circuit MAX6886
Table Threshold Options
SELECTION TH4-TH0* 11111 11110 11101 11100 11011 11010 11001 11000 10111 10110 10101 10100 10011 10010 10001 10000 01111 01110 01101 01100 01011 01010 01001 01000 00111 00110 00101 00100 00011 00010 00001 00000 THRESHOLD VOLTAGES 4.62 4.62 4.62 4.62 4.62 4.62 4.62 4.62 3.06 2.78 3.06 2.78 3.06 2.78 3.06 2.78 4.38 4.38 4.38 4.38 4.38 4.38 4.38 4.38 2.88 2.62 2.88 2.62 2.88 2.62 2.88 0.60 3.06 2.78 3.06 2.78 3.06 2.78 3.06 2.78 2.31 2.31 2.31 2.31 1.67 1.67 2.31 2.31 2.88 2.62 2.88 2.62 2.88 2.62 2.88 2.62 2.19 2.19 2.19 2.19 1.58 1.58 2.19 0.60 2.31 2.31 2.31 2.31 1.67 1.67 0.60 0.60 1.80 1.80 0.60 0.60 0.60 0.60 1.67 1.67 2.19 2.19 2.19 2.19 1.58 1.58 0.60 0.60 1.80 1.80 0.60 0.60 0.60 0.60 1.58 0.60 1.67 1.67 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 1.39 1.39 1.58 1.58 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 1.31 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60 0.60
*TH4 selects 7.5% threshold tolerance, selects 12.5% threshold tolerance. Contact factory alternative thresholds.
Pin-Selectable, Power-Supply Supervisory Circuit
Margin Output Disable (MARGIN) MARGIN allows system-level testing while power supplies exceed normal operating ranges. Drive MARGIN hold RESET existing state while system-level testing occurs. Leave MARGIN unconnected connect unused. internal 10µA current source pulls MARGIN DBP. MARGIN overrides both asserted same time. Connect capacitor from determine normal watchdog timeout period according following equation: CSWT 4.348
MAX6886
Watchdog Timer
MAX6886's watchdog circuit monitors µP's activity. does toggle watchdog input (WDI) within watchdog timeout period, RESET asserts. internal watchdog timer cleared reset, transition (which detect pulses short 50ns.) watchdog timer remains cleared while RESET asserted. timer starts counting soon RESET goes high (see Figure MAX6886 features modes watchdog timer operation: normal initial modes. power-up, after reset event, after watchdog timer expires, initial watchdog timeout active (tWDI). After first transition WDI, normal watchdog timeout active (tWD). initial normal watchdog timeouts determined value capacitor connected between ground. initial watchdog timeout approximately times normal watchdog timeout.
where seconds CSWT Farads. example, capacitor gives normal timeout period 4.68s initial watchdog timeout period approximately minutes. Connect factory-default watchdog normal initial timeouts 1.6s 102.4s, respectively. Choose low-leakage capacitor SWT. Disable watchdog timer connecting GND. internally pulled down through 10µA current sink.
RESET Output
reset output typically connected reset input µP's reset input starts restarts known state. RESET goes whenever more input voltage (IN1-IN6) monitors drop below their respective thresholds, when pulled minimum 1µs, when watchdog timer expires. RESET remains reset timeout period (tRP) after assertion-causing conditions have been cleared (see Figure
2.5V IN1-IN4
RESET tD-PO *tWDI *tWDI
*tWDI INITIAL WATCHDOG TIMER PERIOD.
Figure Watchdog, Reset, Power-Up Timing Diagram
Pin-Selectable, Power-Supply Supervisory Circuit MAX6886
RESET time delay connecting capacitor from using following equation: CSRT 4.348 where seconds CSRT Farads. Connect factory-default reset timeout 200ms. RESET open-drain requires external pullup resistor. RESET remains 2.5V.
Applications Information
Layout Bypassing
better noise immunity, bypass each voltagedetector inputs with 0.1µF capacitors installed close device possible. Bypass with capacitors installed close device possible.
Configuration
PROCESS: BiCMOS
VIEW
Chip Information
RESET
MAX6886
*EXPOSED
MARGIN
THIN
*EXPOSED CONNECTED GND.
Pin-Selectable, Power-Supply Supervisory Circuit
Package Information
(The package drawing(s) this data sheet reflect most current specifications. latest package outline information www.maxim-ic.com/packages.)
THIN.EPS
MAX6886
MARKING E2/2 (NE-1)
D2/2
0.10
XXXXX
I.D.
DETAIL
(ND-1)
I.D. 0.35x45 DETAIL
0.10 0.08
PACKAGE OUTLINE, THIN QFN, 5x5x0.8mm
-DRAWING SCALE-
21-0140
Pin-Selectable, Power-Supply Supervisory Circuit MAX6886
Package Information (continued)
(The package drawing(s) this data sheet reflect most current specifications. latest package outline information www.maxim-ic.com/packages.)
COMMON DIMENSIONS PKG. SYMBOL MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. JEDEC 0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80 0.70 0.75 0.80 0.02 0.05 0.20 REF. 0.02 0.05 0.20 REF. 0.02 0.05 0.20 REF. 0.02 0.05 0.20 REF. PKG. CODES T1655-1 T1655-2 T1655N-1 T2055-2 T2055-3 T2055-4 T2055-5 T2855-1 T2855-2 T2855-3 T2855-4 T2855-5 T2855-6 T2855-7 T2855-8 T2855N-1 T3255-2 T3255-3 T3255-4 T3255N-1
EXPOSED VARIATIONS
MIN. NOM. MAX. MIN.
NOM. MAX.
±0.15
DOWN BONDS ALLOWED
3.00 3.00 3.00 3.00 3.00 3.00 3.15 3.15 2.60 3.15 2.60 2.60 3.15 2.60 3.15 3.15 3.00 3.00 3.00 3.00
3.10 3.20 3.00 3.10 3.20 3.00 3.10 3.20 3.00 3.10 3.20 3.00 3.10 3.20 3.00 3.10 3.20 3.00 3.25 3.25 2.70 3.25 2.70 2.70 3.25 2.70 3.25 3.25 3.10 3.10 3.10 3.10 3.35 3.35 2.80 3.35 2.80 2.80 3.35 2.80 3.35 3.35 3.20 3.20 3.20 3.20 3.15 3.15 2.60 3.15 2.60 2.60 3.15 2.60 3.15 3.15 3.00 3.00 3.00 3.00
3.10 3.20 3.10 3.20 3.10 3.20 3.10 3.20 3.10 3.20 3.10 3.20 3.25 3.25 2.70 3.25 2.70 2.70 3.25 2.70 3.25 3.25 3.10 3.10 3.10 3.10 3.35 3.35 2.80 3.35 2.80 2.80 3.35 2.80 3.35 3.35 3.20 3.20 3.20 3.20
0.25 0.30 0.35 0.25 0.30 0.35 0.20 0.25 0.30 0.20 0.25 0.30 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 4.90 5.00 5.10 0.80 BSC. 0.65 BSC. 0.50 BSC. 0.50 BSC. 0.25 0.25 0.25 0.25 0.30 0.40 0.50 0.45 0.55 0.65 0.45 0.55 0.65 0.30 0.40 0.50 WHHB WHHC WHHD-1 WHHD-2
0.40 0.40
NOTES: DIMENSIONING TOLERANCING CONFORM ASME Y14.5M-1994. DIMENSIONS MILLIMETERS. ANGLES DEGREES. TOTAL NUMBER TERMINALS. TERMINAL IDENTIFIER TERMINAL NUMBERING CONVENTION SHALL CONFORM JESD 95-1 SPP-012. DETAILS TERMINAL IDENTIFIER OPTIONAL, MUST LOCATED WITHIN ZONE INDICATED. TERMINAL IDENTIFIER EITHER MOLD MARKED FEATURE.
COMMON DIMENSIONS TABLE
DIMENSION APPLIES METALLIZED TERMINAL MEASURED BETWEEN 0.25 0.30 FROM TERMINAL TIP. REFER NUMBER TERMINALS EACH SIDE RESPECTIVELY. DEPOPULATION POSSIBLE SYMMETRICAL FASHION. COPLANARITY APPLIES EXPOSED HEAT SINK SLUG WELL TERMINALS. DRAWING CONFORMS JEDEC MO220, EXCEPT EXPOSED DIMENSION T2855-1, T2855-3 T2855-6. WARPAGE SHALL EXCEED 0.10 MARKING PACKAGE ORIENTATION REFERENCE ONLY. NUMBER LEADS SHOWN REFERENCE ONLY. PACKAGE OUTLINE, THIN QFN, 5x5x0.8mm
-DRAWING SCALE-
21-0140
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2005 Maxim Integrated Products Printed registered trademark Maxim Integrated Products, Inc.

Pin-Selectable, Power-Supply Supervisory Circuit MAX6886 pin-sele

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