MCP9700 datasheet(1/18 Pages) MICROCHIP

부품명	MCP9700

상세설명	Low-Power Voltage Output Temperature Sensor

PDF	18 Pages

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제조업체	MICROCHIP [Microchip Technology]

홈페이지	http://www.microchip.com

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DS21942A-page 1

MCP9700/01

Features

• Tiny Analog Temperature Sensor

• Available Packages: SC70-5

• Wide Temperature Measurement Range:

- -40°C to +125°C

• Accuracy: ±4°C (max.), 0°C to +70°C

• Optimized for Analog-to-Digital Converters

(ADCs):

- MCP9700: 10.0 mV/°C (typ.)

- MCP9701: 19.5 mV/°C (typ.)

• Wide Operating Voltage Range:

- MCP9700: VDD = 2.3V to 5.5V

- MCP9701: VDD = 3.1V to 5.5V

• Low Operating Current: 6 µA (typ.)

• Optimized to Drive Large Capacitive Loads

Typical Applications

• Hard Disk Drives and Other PC Peripherals

• Entertainment Systems

• Home Appliance

• Office Equipment

• Battery Packs and Portable Equipment

• General Purpose Temperature Monitoring

Description

The MCP9700/01 low-cost, low-power and tiny tem-

perature sensor family converts temperature to an

analog voltage. It provides an accuracy of ±4°C from

0°C to +70°C while consuming 6 µA (typ.) of operating

current.

The MCP9700/01 provides a low-cost solution for

applications that require measurement of a relative

change of temperature. When measuring relative

change in temperature from 25°C, an accuracy of

±1°C (typ.) can be realized from 0°C to 70°C. This

accuracy can also be achieved by applying system

calibration at 25°C.

Unlike resistive sensors such as thermistors, this

family does not require a signal conditioning circuit.

The voltage output pin can be directly connected to an

ADC input of a microcontroller. The MCP9700 and

MCP9701 temperature coefficients are scaled to

provide a 1° C/bit resolution for an 8-bit ADC with a

reference voltage of 2.5V and 5V, respectively.

In addition, this family is immune to the effects of

parasitic capacitance and can drive large capacitive

loads. This provides Printed Circuit Board (PCB) layout

design flexibility by enabling the device to be remotely

located

from

the

microcontroller.

Adding

some

capacitance at the output also helps the output

transient

response

by

reducing

overshoots

or

undershoots. However, capacitive load is not required

for sensor output stability.

Package Type

Typical Application Circuit

GND

VDD

VOUT

NC

4

1

2

3

5

SC70-5

NC

GND

VDD

MCP9700/01

PICmicro®

Microcontroller

ANI

MCLR

VDD

10 k

Ω

VSS

VDD

VOUT

Cbypass

VDD

0.1 µF

Low-Power Voltage Output Temperature Sensor

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