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Accurate temperature sensing MICROCHIP TC74A3-5.0VAT sensor with SMBus I2C serial communication port

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Accurate temperature sensing MICROCHIP TC74A3-5.0VAT sensor with SMBus I2C serial communication port

Temperature Range : -40℃~+125℃

Interface : I2C;SMBus

Voltage - Supply : 2.7V~5.5V

Description : -40℃~+125℃ 2.7V~5.5V TO-220-5 Analog and Digital Output RoHS

Mfr. Part # : TC74A3-5.0VAT

Model Number : TC74A3-5.0VAT

Package : TO-220-5

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Product Overview

The TC74 is a serially accessible, digital temperature sensor designed for low-cost, small-form-factor applications. It provides temperature data as an 8-bit digital word via a 2-wire SMBus/I2C compatible serial port. Key features include solid-state sensing with high accuracy, low power consumption in both operating and standby modes, and a supply voltage range of 2.7V to 5.5V. The TC74 is suitable for thermal protection, monitoring, and thermostat control in various electronic systems.

Product Attributes

Brand: Microchip Technology Inc.
Origin: Not specified
Material: Not specified
Color: Not specified
Certifications: Not specified

Technical Specifications

Parameter	Symbol	Min	Typ	Max	Units	Conditions
Power-on Reset Threshold	VPOR	1.2	-	2.2	V	VDD Falling Edge or Rising Edge
Supply Voltage	VDD	2.7	-	5.5	V	Note 5
Operating Current	IDD	-	200	350	A	VDD = 5.5V, Note 1
Standby Supply Current	IDD-STANDBY	-	5.0	10	A	VDD = 3.3V Serial Port Inactive, Note 4
Temperature Accuracy	TERR	-	2.0	-	C	+25C <TA < +85C
Temperature Accuracy	TERR	-	3.0	-	C	0C < TA < +125C
Conversion Rate	CR	4	8	-	SPS	Note 2
Logic Input High	VIH	0.8 x VDD	-	-	V
Logic Input Low	VIL	-	-	0.2 x VDD	V
SDA Output Low	VOL	-	-	0.4	V	IOL = 3 mA
SDA Output Low	VOL	-	-	0.6	V	IOL = 6 mA, Note 3
Input Capacitance	CIN	-	5.0	-	pF	SDA, SCLK
I/O Leakage	ILEAK	-1.0	0.1	1.0	A
SMBus/I2C Clock Frequency	fSMB	10	-	100	kHz	Serial Port AC Timing (CLOAD = 80 pF)
Low Clock Period	tLOW	4.7	-	-	sec
High Clock Period	tHIGH	4.0	-	-	sec
SMBus/I2C Rise Time	tR	-	-	1000	nsec	10% to 90%
SMBus/I2C Fall Time	tF	-	-	300	nsec	90% to 10%
START Condition Setup Time	tSU(START)	4.0	-	-	sec
START Condition Hold Time	tH(START)	4.0	-	-	sec
Data In Setup Time	tSU-DATA	1000	-	-	nsec
Data In Hold Time	tH-DAT	1250	-	-	nsec
STOP Condition Setup Time	tSU(STOP)	4.0	-	-	sec
Bus Free Time Prior to New Transition	tIDLE	4.7	-	-	sec
Power-on Reset Delay	tPOR	-	500	-	sec	VDD VPOR (Rising Edge)

2410121852_MICROCHIP-TC74A3-5-0VAT_C641449.pdf

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