LM75B Datasheet -Temperature sensor and thermal Watchdog

Part Number : LM75B

Function : Digital temperature sensor and thermal Watchdog

Package : SO, TSSOP, XSON 8 Type

Manufacturers : NXP Semiconductors.

Pinouts :

LM75B datasheet

Description :

The LM75B is a temperature-to-digital converter using an on-chip band gap temperature
sensor and Sigma-Delta A-to-D conversion technique with an overtemperature detection
output. The LM75B contains a number of data registers: Configuration register (Conf) to
store the device settings such as device operation mode, OS operation mode, OS polarity
and OS fault queue as described in Section 7 “Functional description”; temperature
register (Temp) to store the digital temp reading, and set-point registers (Tos and Thyst) to store programmable overtemperature shutdown and hysteresis limits, that can be
communicated by a controller via the 2-wire serial I2C-bus interface. The device also
includes an open-drain output (OS) which becomes active when the temperature exceeds
the programmed limits. There are three selectable logic address pins so that eight devices
can be connected on the same bus without address conflict.
The LM75B can be configured for different operation conditions. It can be set in normal
mode to periodically monitor the ambient temperature, or in shutdown mode to minimize
power consumption. The OS output operates in either of two selectable modes:
OS comparator mode or OS interrupt mode. Its active state can be selected as either
HIGH or LOW. The fault queue that defines the number of consecutive faults in order to
activate the OS output is programmable as well as the set-point limits.

Pin-for-pin replacement for industry standard LM75 and LM75A and offers improved
temperature resolution of 0.125C and specification of a single part over power supply
range from 2.8 V to 5.5 V
I2C-bus interface with up to 8 devices on the same bus
Power supply range from 2.8 V to 5.5 V
Temperatures range from 55C to +125C
Frequency range 20 Hz to 400 kHz with bus fault time-out to prevent hanging up the
11-bit ADC that offers a temperature resolution of 0.125C
Temperature accuracy of:
  2C from 25C to +100C
  3C from 55C to +125C
Programmable temperature threshold and hysteresis set points
Supply current of 1.0A in shutdown mode for power conservation
Stand-alone operation as thermostat at power-up
ESD protection exceeds 4500 V HBM per JESD22-A114 and 2000 V CDM per
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
Small 8-pin package types: SO8, TSSOP8, 3 mm2 mm XSON8U, and

Other data sheets within the file : LM75BD, LM75BDP, LM75BGD, LM75BTP

LM75B Datasheet PDF Download

LM75B pdf