October 2009

1

M9999-100909

Micrel, Inc.

MIC7211/7221

Pin Description

Pin Number

Pin Name

Pin Function

1

OUT

Amplifier Output

2

V+

Positive Supply

3

IN+

Noninverting Input

4

IN–

Inverting Input

5

V–

Negative Suppy

MIC7211/7221

Functional Configuration

OUT

V+

IN–

IN+

1

3

45

2

V–

SOT-23-5 (M5)

General Description

The MIC7211 and MIC7221 are micropower comparators

SOT-23-5 package. The MIC7211/21 is ideal for systems

where small size is a critical consideration.

The MIC7211/21 is optimized for single supply operation from

2.2V to 10V power supplies.

The MIC7211 features a conventional push-pull output while

the MIC7221 has an open-drain output for mixed-voltage

applications with an external pull-up resistor.

The MIC7211/21 benefits small battery-operated portable

electronic devices where small size and the ability to place

the comparator close to the signal source are primary design

concerns.

Pin Configuration

OUT

V+

IN–

IN+

1

3

45

2

V–

Axx

Part

Identification

Features

• Small footprint SOT-23-5 package

• Guaranteed performance at 2.2V, 2.7V, 5V, and 10V

• 7µA typical supply current at 5V

• <5µs response time at 5V

• Push-pull output (MIC7211)

• Open-drain output (MIC7221)

• Input voltage range may exceed supply voltage by 0.3V

• >100mA typical sink or source

Applications

• Battery-powered products

• Notebook computers and PDAs

• PCMCIA cards

• Cellular and other wireless communication devices

• Alarm and security circuits

• Direct sensor interface

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

Ordering Information

Part Number

Marking

Temp. Range

Package

Lead Finish

MIC7211BM5

A14

–40°C to +85°C

SOT-23-5

Standard

MIC7221BM5

A15

–40°C to +85°C

SOT-23-5

Standard

MIC7211YM5

A14

–40°C to +85°C

SOT-23-5

Pb-Free

MIC7221YM5

A15

–40°C to +85°C

SOT-23-5

Pb-Free