MCP9844 datasheet(2/44 Pages) MICROCHIP

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MCP9844

DS20005192A-page 2

 2013 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD.................................................................................. 4.0V

Voltage at all Input/Output pins ............... GND – 0.3V to 4.0V

Pin A0....................................................... GND – 0.3V to 11V

Storage temperature .....................................-65°C to +150°C

Ambient temp. with power applied ................-40°C to +125°C

Junction Temperature (TJ)...........................................+150°C

ESD protection on all pins (HBM:MM) ................. (4 kV:200V)

Latch-Up Current at each pin (25°C)........................ ±200 mA

†Notice:

Stresses above those listed under “Maximum

ratings” may cause permanent damage to the device. This is

a stress rating only and functional operation of the device at

those or any other conditions above those indicated in the

operational listings of this specification is not implied.

Exposure to maximum rating conditions for extended periods

may affect device reliability.

TEMPERATURE SENSOR DC CHARACTERISTICS

Electrical Specifications:

Unless otherwise indicated, VDD = 1.7V to 3.6V, GND = Ground,

and TA = -40°C to +125°C.

Parameters

Sym

Min

Typ

Max

Unit

Conditions

Temperature Sensor Accuracy

+75°C < TA  +95°C

TACY

-1.0

±0.2

+1.0

°C

VDD =1.8V

+40°C < TA  +125°C

-2.0

±0.5

+2.0

°C

-40°C < TA  +125°C

-3.0

±1

+3.0

°C

Temperature Conversion Time

0.5°C/bit

tCONV

—30

—

0.25°C/bit

—

125

ms 15 s/sec (typical) (See Section 5.2.4)

0.125°C/bit

—

130

—

0.0625°C/bit

—

260

—

Power Supply

Specified Voltage Range

VDD

1.7

—

3.6

Operating Current

IDD_TS

—100

500

µA

Shutdown Current

ISHDN

—0.2

µA

TA = 85°C

Power On Reset (POR)

VPOR_TS

—

1.5

—

Threshold for falling VDD voltage

Settling time after POR

tPOR

—

ms For warm and cold power cycles

Power Supply Rejection,

VDD = 1.7V, 2.5V, 3.3V

°C

—

0.2

—

°C

VDD = 1.7V to 3.6V

—±1

—

°C

VDD_AC = VDD +150 mVPP AC

(0 to 1 MHz) and TA = +25°C,

Event Output (Open-Drain output, external pull-up resistor required), see Section 5.2.3

High-level Current (leakage)

IOH

——

µA

VOH = VDD

Low-level Voltage

VOL

——

0.4

IOL= 3 mA (Active-Low, Pull-up

Resistor)

Thermal Response, from +25°C (Air) to +125°C (oil bath)

TDFN-8

tRES

—

0.7

—

Time to 63% (89°C)

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