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LM57-Q1 Datasheet(PDF) 4 Page - Texas Instruments |
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LM57-Q1 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 38 page  VDD GND GND VDD GND 1 2A VDD GND GND VDD GND GND LM57 VDD GND TRIP TEST VTEMP TOVER TOVER SENSE1 SENSE2 1 2 3 4 5 6 7 8 LM57-Q1 SNIS191A – JULY 2015 – REVISED JULY 2015 www.ti.com 5 Pin Configuration and Functions TSSOP/PW Package 8-Pin Top View Pin Functions PIN TYPE EQUIVALENT CIRCUIT DESCRIPTION NAME NO. GND 1 Ground — Power supply ground Trip-point resistor sense. One of two sense pins which selects the SENSE1 2 — temperature at which TOVER and TOVER will assert. Trip-point resistor sense. One of two sense pins which selects the SENSE2 3 — temperature at which TOVER and TOVER will assert. VDD 4 Power Supply voltage TRIP TEST pin. Active High input. If TRIP TEST = 0 (default), then the VTEMP output has the analog TRIP Digital temperature sensor output voltage. 5 TEST Input If TRIP TEST = 1, then TOVER and TOVER outputs are asserted and VTEMP = VTRIP, the temperature trip voltage. Tie this pin to ground if not used. Overtemperature switch output Active low, open-drain (see LM57-Q1 VTEMP Voltage-to-Temperature Digital Equations regarding required pullup resistor.) TOVER 6 Output Asserted when the measured temperature exceeds the Trip Point Temperature or if TRIP TEST = 1 This pin may be left open if not used. Overtemperature switch output Active high, push-pull Digital TOVER 7 Asserted when the measured temperature exceeds the trip point Output temperature or if TRIP TEST = 1 This pin may be left open if not used. 4 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Product Folder Links: LM57-Q1 |
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