PCT2075DP datasheet(2/37 Pages) NXP

2 / 37 page

PCT2075

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Product data sheet

Rev. 9.1 — 21 April 2017

2 of 37

NXP Semiconductors

PCT2075

I2C-bus Fm+ digital temperature sensor and thermal watchdog

Features and benefits

 Pin-for-pin replacement for LM75 series but allows up to 27 devices on the bus

 Power supply range from 2.7 V to 5.5 V

 Temperatures range from

55 C to +125 C

 Frequency range 20 kHz to 1 MHz with SMBus time-out to prevent hanging up the bus

 1 MHz Fast-mode Plus 30 mA SDA drive allows more devices on the same bus but is

backward compatible to Fast-mode and Standard-mode

 11-bit ADC that offers a temperature resolution of 0.125

C

 Temperature accuracy of:



1 C (max.) from 25 C to +100 C



2 C (max.) from 55 C to +125 C

 Programmable temperature threshold and hysteresis set points during operation

 Supply current of <1.0

A in shut-down mode for power conservation

 Stand-alone operation as thermostat at power-up

 ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per

JESD22-C101

 Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

 Small 8-pin package types: SO8, TSSOP8 and 2 mm

 3mmHWSON8

 Small 6-pin package type: TSOP6

Applications

 System thermal management

 Personal computers

 Electronics equipment

 Industrial controllers

 Cooling system: turn on when the temperature is higher (hotter) than -5

C; turn off

when the temperature is below -10

C

Fig 1.

Cooling system using custom part PCT2075GV/N005X

aaa-027129

-5°C Tots

OS reset

OS active

AC off

-10°C

Thys

AC on

AC off

reading temperature limits

OS output in comparator mode

AC on

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