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LM57FPW 数据表(PDF) 4 Page - Texas Instruments

部件名 LM57FPW
功能描述  LM57-Q1 Resistor-Programmable Temperature Switch and Analog Temperature Sensor
PDF  39 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

LM57FPW 数据表(HTML) 4 Page - Texas Instruments

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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
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Copyright © 2015, Texas Instruments Incorporated
Product Folder Links: LM57-Q1



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