MCP9801 datasheet(2/30 Pages) MICROCHIP

2 / 30 page

MCP9800/1/2/3

DS21909B-page 2

 2004 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD....................................................................... 6.0V

Voltage at all Input/Output pins .... GND – 0.3V to 5.5V

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

Ambient temp. with power applied .....-55°C to +125°C

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

ESD protection on all pins (HBM:MM)....... (4 kV:400V)

Latch-Up Current at each pin ........................ ±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.

PIN FUNCTION TABLE

NAME

FUNCTION

SDA

Bidirectional Serial Data (open-drain

output)

SCLK

Serial Clock Input

ALERT

Temperature Alert Output (open-drain)

Address Select Pin (bit 2)

Address Select Pin (bit 1)

Address Select Pin (bit 0)

VDD

Power Supply Input

GND

Ground

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, VDD = 2.7V to 5.5V, GND = Ground, and

TA = -55°C to +125°C.

Parameters

Sym

Min

Typ

Max

Unit

Conditions

Power Supply

Operating Voltage Range

VDD

2.7

—

5.5

Operating Current

IDD

—

200

400

µA

Continuous Operation

Shutdown Current

ISHDN

—

0.1

µA

Shutdown Mode

Power On Reset Threshold (POR)

VPOR

—1.7

—

VDD falling edge

Temperature Sensor Accuracy

Accuracy with 12-bit Resolution:

TA = +25°C

TACY

—

±0.5

—

°C

VDD = 3.3V

-10°C < TA ≤ +85°C

TACY

-1.0

—

+1.0

°C

VDD = 3.3V

-10°C < TA ≤ +125°C

TACY

-2.0

—

+2.0

°C

VDD = 3.3V

-55°C < TA ≤ +125°C

TACY

-3.0

—

+3.0

°C

VDD = 3.3V

Internal

Σ∆ ADC

Conversion Time:

9-bit Resolution

tCONV

—

33 samples/sec (typ.)

10-bit Resolution

tCONV

—

150

17 samples/sec (typ.)

11-bit Resolution

tCONV

—

120

300

8 samples/sec (typ.)

12-bit Resolution

tCONV

—

240

600

4 samples/sec (typ.)

Alert Output (Open-drain)

High-level Current

IOH

——

µA

VOH = 5V

Low-level Voltage

VOL

——

0.4

IOL= 3 mA

Thermal Response

Response Time

tRES

—

1.4

—

Time to 63% (88°C)

27°C (Air) to 125°C (oil bath)

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