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Small Size Digital Thermal Sensor MICROCHIP MIC281-7BM6-TR with Shutdown Mode and Voltage Tolerant IOs

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Small Size Digital Thermal Sensor MICROCHIP MIC281-7BM6-TR with Shutdown Mode and Voltage Tolerant IOs

Description : SOT-23-6 Analog and Digital Output

Mfr. Part # : MIC281-7BM6-TR

Model Number : MIC281-7BM6-TR

Package : SOT-23-6

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Product Overview

The MIC281 is a digital thermal sensor designed for low-cost and small-size applications, capable of measuring the temperature of a remote PN junction. It is optimized for use with inexpensive commodity transistors or embedded thermal diodes found in CPUs and FPGAs. The device features an I2C and SMBus 2.0-compatible serial interface with voltage-tolerant I/Os and a low power shutdown mode. Its advanced analog front-end and integrating A/D converter provide excellent noise rejection for accurate remote sensing.

Product Attributes

Brand: Microchip Technology Inc.
Package Type: SOT23-6

Technical Specifications

Parameter	Symbol	Min.	Typ.	Max.	Units	Conditions
Power Supply
Power Supply Voltage	VDD	3.0		3.6	V	Operating Rating
Power Supply Voltage	VDD			+3.8	V	Absolute Maximum Rating
Supply Current (Normal Mode)	IDD		0.23	0.4	mA	T1 open; CLK = DATA = High
Supply Current (Shutdown Mode)	IDD		9		µA	T1 open; Note 2; CLK = 100 kHz
Power-on Reset Time	tPOR		200		µs	VDD > VPOR
Power-on Reset Voltage	VPOR		2.65	2.95	V	All registers reset to default values; A/D conversions initiated
Temperature-to-Digital Converter Characteristics
Accuracy (0°C to 100°C)			±1	±3	°C	0°C ≤ TD ≤ 100°C, 0°C < TA < 85°C; 3.15V < VDD < 3.45V
Accuracy (-40°C to 125°C)			±2	±5	°C	-40°C ≤ TD ≤ 125°C, 0°C < TA < 85°C; 3.15V < VDD < 3.45V
Conversion Time	tCONV		200	240	ms	-
Remote Temperature Input, T1
Current into External Diode	IF		192	400	µA	T1 forced to 1.0V, high level
Low level		7	12		-	-
Serial Data I/O Pin, DATA
Low Output Voltage	VOL			0.3	V	IOL = 3 mA
Low Output Voltage	VOL			0.5	V	IOL = 6 mA
Low Input Voltage	VIL			0.8	V	3V ≤ VDD ≤ 3.6V
High Input Voltage	VIH	2.1		5.5	V	3V ≤ VDD ≤ 3.6V
Input Capacitance	CIN		10		pF	Note 2
Input Current	ILEAK		±1		µA	-
Serial Clock Input, CLK
Low Input Voltage	VIL			0.8	V	3V ≤ VDD ≤ 3.6V
High Input Voltage	VIH	2.1		5.5	V	3V ≤ VDD ≤ 3.6V
Input Capacitance	CIN		10		pF	Note 2
Input Current	ILEAK		±1		µA	-
Serial Interface Timing
CLK (Clock) Period	t1	2.5			µs	-
Data-In Set-Up Time to CLK High	t2	100			ns	-
Data-Out Stable after CLK Low	t3	300			ns	-
Data-Low Set-Up Time to CLK Low	t4	100			ns	Start Condition
Data-High Hold Time after CLK High	t5	100			ns	Stop Condition
Bus Timeout	tTO	25	30	35	ms	-

2410301801_MICROCHIP-MIC281-7BM6-TR_C19582582.pdf

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