Micrel, Inc.

MIC4100/1

March 2006

2

M9999-031506

Ordering Information

Part Number

Standard

Pb-Free

Input

Junction Temp. Range

Package

MIC4100BM

MIC4100YM

CMOS

–40° to +125°C

SOIC-8L

MIC4101BM

MIC4101YM

TTL

–40° to +125°C

SOIC-8L

Pin Configuration

1

VDD

HB

HO

HS

8LO

VSS

LI

HI

7

6

5

2

3

4

SOIC-8L (M)

Pin Description

Pin Number

Pin Name

Pin Function

1

VDD

Positive Supply to lower gate drivers. Decouple this pin to VSS (Pin 7). Bootstrap

diode connected to HB (pin 2).

2

HB

High-Side Bootstrap supply. External bootstrap capacitor is required. Connect

positive side of bootstrap capacitor to this pin. Bootstrap diode is on-chip.

3

HO

High-Side Output. Connect to gate of High-Side power MOSFET.

4

HS

High-Side Source connection. Connect to source of High-Side power MOSFET.

Connect negative side of bootstrap capacitor to this pin.

5

HI

High-Side input.

6

LI

Low-Side input.

7

VSS

Chip negative supply, generally will be ground.

8

LO

Low-Side Output. Connect to gate of Low-Side power MOSFET.