MCP9801 판매점 - (MCP9800 - MCP9803) 2-Wire High-Accuracy Temperature Sensor

MCP9801 반도체 회로 부품 판매점

(MCP9800 - MCP9803) 2-Wire High-Accuracy Temperature Sensor

Microchip Technology

www.DataSheet4U.com

MCP9800/1/2/3

2-Wire High-Accuracy Temperature Sensor

Features

• Temperature-to-Digital Converter

• Accuracy with 12-bit Resolution:

- ±0.5°C (typ.) at +25°C

- ±1°C (max.) from -10°C to +85°C

- ±2°C (max.) from -10°C to +125°C

- ±3°C (max.) from -55°C to +125°C

• User-selectable Resolution: 9 – 12 bit

• Operating Voltage Range: 2.7V to 5.5V

• 2-wire Interface: I2C™/SMBus Compatible

• Operating Current: 200 µA (typ.)

• Shutdown Current: 1 µA (max.)

• Power-saving One-shot Temperature

Measurement

• Available Packages: SOT-23-5, MSOP-8, SOIC-8

Typical Applications

• Personal Computers and Servers

• Hard Disk Drives and Other PC Peripherals

• Entertainment Systems

• Office Equipment

• Data Communication Equipment

• Mobile Phones

• General-purpose Temperature Monitoring

Typical Application

VDD

MCP9800/02 R

VDD 1

GND 2

ALERT 3

5 SDA

4 SCLK

RPULL-UP

PICmicro®

Microcontroller

PIC16F737

I/O Port

Description

Microchip Technology Inc.’s MCP9800/1/2/3 family of

digital temperature sensors converts temperatures

between -55°C and +125°C to a digital word. They

provide an accuracy of ±1°C (max.) from -10°C to

+85°C.

The MCP9800/1/2/3 family comes with user-program-

mable registers that provide flexibility for temperature

sensing applications. The register settings allow user-

selectable 9-bit to 12-bit temperature measurement

resolution, configuration of the power-saving Shutdown

and One-shot (single conversion on command while in

the Shutdown) modes and the specification of both

temperature alert output and hysteresis limits. When

the temperature changes beyond the specified limits,

the MCP9800/1/2/3 outputs an alert signal. The user

has the option of setting the alert output signal polarity

as an active-low or active-high comparator output for

thermostat operation, or as temperature event interrupt

output for microprocessor-based systems.

This sensor has an industry standard 2-wire, I2C™/

SMBus compatible serial interface, allowing up to eight

devices to be controlled in a single serial bus. These fea-

tures make the MCP9800/1/2/3 ideal for sophisticated

multi-zone temperature-monitoring applications.

Package Types

MCP9800

MCP9802

MCP9801

MCP9803

SOT-23-5

VDD 1

5 SDA

GND 2

ALERT 3

4 SCLK

SOIC, MSOP

SDA 1

SCLK 2

8 VDD

7 A0

ALERT 3

GND 4

6 A1

5 A2

MCP9800/02A0: A2, A1, A0 are internally set to (0, 0, 0)

MCP9800/02A5: A2, A1, A0 are internally set to (1, 0, 1)

MCP9802/03: Serial Bus time-out 35 ms (typ.)

 2004 Microchip Technology Inc.

DS21909B-page 1

MCP9800/1/2/3

1.0 ELECTRICAL

CHARACTERISTICS

www.DataSheet4U.com

PIN FUNCTION TABLE

NAME

FUNCTION

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

SDA

SCLK

ALERT

VDD

GND

Bidirectional Serial Data (open-drain

output)

Serial Clock Input

Temperature Alert Output (open-drain)

Address Select Pin (bit 2)

Address Select Pin (bit 1)

Address Select Pin (bit 0)

Power Supply Input

Ground

†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.

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

Operating Current

Shutdown Current

VDD 2.7 — 5.5 V

IDD

—

200 400

µA Continuous Operation

ISHDN

—

0.1

µA Shutdown Mode

Power On Reset Threshold (POR) VPOR

—

1.7

—

V VDD falling edge

Temperature Sensor Accuracy

Accuracy with 12-bit Resolution:

TA = +25°C

-10°C < TA ≤ +85°C

-10°C < TA ≤ +125°C

-55°C < TA ≤ +125°C

Internal Σ∆ ADC

TACY

— ±0.5 —

-1.0 — +1.0

-2.0 — +2.0

-3.0 — +3.0

°C VDD = 3.3V

Conversion Time:

9-bit Resolution

10-bit Resolution

11-bit Resolution

12-bit Resolution

Alert Output (Open-drain)

tCONV

—

75 ms 33 samples/sec (typ.)

tCONV

—

60 150 ms 17 samples/sec (typ.)

tCONV — 120 300 ms 8 samples/sec (typ.)

tCONV — 240 600 ms 4 samples/sec (typ.)

High-level Current

IOH — — 1 µA VOH = 5V

Low-level Voltage

VOL — — 0.4 V IOL= 3 mA

Thermal Response

Response Time

tRES — 1.4 —

s Time to 63% (88°C)

27°C (Air) to 125°C (oil bath)

DS21909B-page 2

 2004 Microchip Technology Inc.

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제조업체: Microchip Technology

( microchip )

MCP9801 sensor

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MCP9801 반도체 회로 부품 판매점

(MCP9800 - MCP9803) 2-Wire High-Accuracy Temperature Sensor

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일반적인 전자부품 판매점

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