LM75BTP,147 datasheet, PDF - EEWORLD Datasheet

LM75BTP,147: DescriptionTemp Sensor Digital Serial (2-Wire, I2C) 8-Pin HWSON EP T/R; File Size322KB，37 Pages; ManufacturerNXP; Websitehttps://www.nxp.com; Environmental Compliance

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LM75BTP,147 Overview

Temp Sensor Digital Serial (2-Wire, I2C) 8-Pin HWSON EP T/R

LM75BTP,147 Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Module/IC Classification	IC
Resolution (bit)	11
Accuracy	±3°C(Max)
Interface Type	Serial (2-Wire, I2C)
Output Type	Digital
Minimum Operating Supply Voltage (V)	2.8
Typical Operating Supply Voltage (V)	3.3\|5
Maximum Operating Supply Voltage (V)	5.5
Maximum Supply Current (uA)	300
Minimum Operating Temperature (°C)	-55
Maximum Operating Temperature (°C)	125
Packaging	Tape and Reel
Supplier Package	HWSON EP
Pin Count	8
Mounting	Surface Mount
Package Height	0.73
Package Length	2
Package Width	3
PCB changed	8
Lead Shape	No Lead

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LM75B

Digital temperature sensor and thermal watchdog

Rev. 6.1 — 6 February 2015

Product data sheet

1. General 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

store programmable overtemperature shutdown and hysteresis limits, that can be

communicated by a controller via the 2-wire serial I

C-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.

The temperature register always stores an 11-bit two’s complement data giving a

temperature resolution of 0.125

C.

This high temperature resolution is particularly useful

in applications of measuring precisely the thermal drift or runaway. When the LM75B is

accessed the conversion in process is not interrupted (that is, the I

C-bus section is totally

independent of the Sigma-Delta converter section) and accessing the LM75B

continuously without waiting at least one conversion time between communications will

not prevent the device from updating the Temp register with a new conversion result. The

new conversion result will be available immediately after the Temp register is updated.

The LM75B powers up in the normal operation mode with the OS in comparator mode,

temperature threshold of 80

C

and hysteresis of 75

C,

so that it can be used as a

stand-alone thermostat with those pre-defined temperature set points.

2. Features and benefits



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



C-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

LM75BTP,147 Related Products

	LM75BTP,147	LM75BGD,125	LM75BD,118	LM75BDP,118 \| Temperature Sensor
Description	Temp Sensor Digital Serial (2-Wire, I2C) 8-Pin HWSON EP T/R	Temp Sensor Digital Serial (2-Wire, I2C) 8-Pin XSON-U T/R	Temp Sensor Digital Serial (2-Wire, I2C) 8-Pin SO T/R	Temp Sensor Digital Serial (2-Wire, I2C) 8-Pin TSSOP T/R
EU restricts the use of certain hazardous substances	Compliant	Compliant	Compliant	Compliant
ECCN (US)	EAR99	EAR99	EAR99	EAR99
Part Status	Active	Active	Active	Active
HTS	8542.39.00.01	8542.39.00.01	8542.39.00.01	8542.39.00.01
Module/IC Classification	IC	IC	IC	IC
Resolution (bit)	11	11	11	11
Accuracy	±3°C(Max)	±3°C(Max)	±3°C(Max)	±3°C(Max)
Interface Type	Serial (2-Wire, I2C)	Serial (2-Wire, I2C)	Serial (2-Wire, I2C)	Serial (2-Wire, I2C)
Output Type	Digital	Digital	Digital	Digital
Minimum Operating Supply Voltage (V)	2.8	2.8	2.8	2.8
Typical Operating Supply Voltage (V)	3.3\|5	3.3\|5	3.3\|5	5\|3.3
Maximum Operating Supply Voltage (V)	5.5	5.5	5.5	5.5
Maximum Supply Current (uA)	300	300	300	300
Minimum Operating Temperature (°C)	-55	-55	-55	-55
Maximum Operating Temperature (°C)	125	125	125	125
Packaging	Tape and Reel	Tape and Reel	Tape and Reel	Tape and Reel
Supplier Package	HWSON EP	XSON-U	SO	TSSOP
Pin Count	8	8	8	8
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	0.73	0.45(Max)	1.45(Max)	0.95(Max)
Package Length	2	2.1(Max)	5(Max)	3.1(Max)
Package Width	3	3.1(Max)	4(Max)	3.1(Max)
PCB changed	8	8	8	8

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