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MAX6887_ETE+ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX6887_ETE+ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 13 page General Description The MAX6887/MAX6888 multivoltage supply supervi- sors provide several voltage-detector inputs, one watch- dog input, and three outputs. Each voltage-detector input offers a factory-set undervoltage and overvoltage threshold. Manual reset and margin disable inputs offer additional flexibility. The MAX6887 offers six voltage-detector inputs, while the MAX6888 offers four inputs. Output RESET asserts when any input voltage drops below its respective undervoltage threshold or manual reset MR is asserted. Output OV asserts when any input voltage exceeds its respective overvoltage threshold. Monitor standard supply voltages listed in the Selector Guide. The MAX6887/MAX6888 offer a watchdog timer with an initial and normal timeout periods of 102.4s and 1.6s, respectively. Watchdog output WDO asserts when the watchdog timer expires. Connect WDO to manual reset input MR to generate resets when the watchdog timer expires. RESET, OV, and WDO are active-low, open- drain outputs. The MAX6887/MAX6888 are available in a 5mm x 5mm x 0.8mm, 16-pin thin QFN package and operate over the extended -40°C to +85°C temperature range. Applications Multivoltage Systems Telecom Networking Servers/Workstations/Storage Systems Features o Hex/Quad Voltage Detectors o Undervoltage and Overvoltage Thresholds o 1% Threshold Accuracy o Margining Disable and Manual Reset Input o Watchdog Timer o Open-Drain RESET, OV, and WDO Outputs o 180ms (min) Reset Timeout Period o Few External Components o Small 5mm x 5mm, 16-Pin Thin QFN Packages Hex/Quad, Power-Supply Supervisory Circuits ________________________________________________________________ Maxim Integrated Products 1 PART TEMP RANGE PIN-PACKAGE MAX6887_ETE+ -40°C to +85°C 16 Thin QFN-EP* MAX6888_ETE+ -40°C to +85°C 16 Thin QFN-EP* Ordering Information Selector Guide 19-0291; Rev 2; 2/10 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Pin Configurations and Typical Operating Circuit appear at end of data sheet. Note: Insert the desired letter from the Selector Guide into the blank to complete the part number. +Denotes a lead(Pb)-free/RoHS-compliant package. * EP = Exposed pad. NOMINAL INPUT VOLTAGE (V)* PART IN1 IN2 IN3 IN4 IN5 IN6 TOL (%) MAX6887AETE 5.0 3.3 2.5 1.8 Adj Adj 5 MAX6887BETE 5.0 3.3 2.5 Adj Adj Adj 5 MAX6887CETE 5.0 3.3 1.8 Adj Adj Adj 5 MAX6887DETE 3.3 2.5 1.8 1.5 Adj Adj 5 MAX6887EETE 3.3 2.5 1.8 Adj Adj Adj 5 MAX6887FETE 3.3 2.5 1.5 Adj Adj Adj 5 MAX6887GETE 3.3 2.5 Adj Adj Adj Adj 5 MAX6887HETE 3.3 1.8 Adj Adj Adj Adj 5 MAX6887QETE Adj Adj Adj Adj Adj Adj 5 NOMINAL INPUT VOLTAGE (V)* PART IN1 IN2 IN3 IN4 IN5 IN6 TOL (%) MAX6887IETE 5.0 3.3 2.5 1.8 Adj Adj 10 MAX6887JETE 5.0 3.3 2.5 Adj Adj Adj 10 MAX6887KETE 5.0 3.3 1.8 Adj Adj Adj 10 MAX6887LETE 3.3 2.5 1.8 1.5 Adj Adj 10 MAX6887METE 3.3 2.5 1.8 Adj Adj Adj 10 MAX6887NETE 3.3 2.5 1.5 Adj Adj Adj 10 MAX6887OETE 3.3 2.5 Adj Adj Adj Adj 10 MAX6887PETE 3.3 1.8 Adj Adj Adj Adj 10 MAX6887RETE Adj Adj Adj Adj Adj Adj 10 * See thresholds options tables (Tables 1 and 2) for actual undervoltage and overvoltage thresholds. Selector Guides continued at end of data sheet. |
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