LM57CISDX-5/NOPB National Semiconductor, LM57CISDX-5/NOPB Datasheet - Page 3

• Manufacturer Part Number: LM57CISDX-5/NOPB
• Description: IC PROG TEMP SWITCH SENSOR 8-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM57CISDX-5/NOPB

• Sensing Temperature: -50°C ~ 150°C
• Output Type: Open Drain, Push-Pull
• Voltage - Supply: 2.4 V ~ 5.5 V
• Accuracy: ±2.3°C
• Package / Case: 8-WFDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM57CISD-5X; LM57CISD-5X; LM57CISD-5X/NOPB; LM57CISDX-5

Pin No.
Pin Descriptions
1
2
3
4
5
6
7
8
R
R
Name
TEST
T
T
V
TRIP
GND
SENSE1
SENSE2
V
OVER
OVER
TEMP
DD
Thermal Pad (LLP package only)
Ground
Output
Output
Analog
Output
Power
Digital
Digital
Digital
Type
Input
Equivalent Circuit
3
Power Supply Ground
Trip-Point Resistor Sense. One of two sense pins which selects
the temperature at which T
Trip-Point Resistor Sense. One of two sense pins which selects
the temperature at which T
Supply Voltage
TRIP TEST pin. Active High input.
If TRIP TEST = 0 (Default), then the V
temperature sensor output voltage.
If TRIP TEST = 1, then T
V
Tie this pin to ground if not used.
Over Temperature Switch output
Active Low, Open-drain (See Section 2.1 regarding required pull-
up resistor.)
Asserted when the measured temperature exceeds the Trip Point
Temperature or if TRIP TEST = 1
This pin may be left open if not used.
Over Temperature Switch output
Active High, Push-Pull
Asserted when the measured temperature exceeds the Trip Point
Temperature or if TRIP TEST = 1
This pin may be left open if not used.
V
If TRIP TEST = 0, then V
Voltage
If TRIP TEST = 1, then V
This pin may be left open if not used.
Connect to GND
TEMP
TEMP
Analog Voltage Output
= V
TRIP
, the Temperature Trip Voltage.
OVER
TEMP
TEMP
Description
OVER
OVER
and T
= V
= V
and T
and T
TS
TRIP
OVER
, Temperature Sensor Output
, Temperature Trip Voltage
OVER
OVER
TEMP
outputs are asserted and
will go active.
will go active.
output has the analog
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