Micrel, Inc.

MIC44F18/19/20

January 2007

2

M9999-011207

Ordering Information

Part Number

Marking

Configuration

Junction

Temp. Range

Package

Lead

Finish

MIC44F18YML

D12

Non-Inverting

–40

°C to 125°C

2x2 MLF-8

Pb-Free

MIC44F18YMME

Non-Inverting

–40

°C to 125°C

ePAD MSOP-8

Pb-Free

MIC44F19YML

D13

Inverting Output high when disabled

–40

°C to 125°C

2x2 MLF-8

Pb-Free

MIC44F19YMME

Inverting Output high when disabled

–40

°C to 125°C

ePAD MSOP-8

Pb-Free

MIC44F20YML

D14

Inverting Output low when disabled

–40

°C to 125°C

2x2 MLF-8

Pb-Free

MIC44F20YMME

Inverting Output low when disabled

–40

°C to 125°C

ePAD MSOP-8

Pb-Free

Note: Over bar symbol may not be to scale.

Pin Configuration

IN

EN/UVLO

5

4

OUT

VDD

NC

OUT

GND

GND

8

7

6

1

2

3

EP

IN

EN/UVLO

4

OUT

VDD

NC

OUT

GND

GND

8

7

6

1

2

3

5

EP

8-Pin ePAD MSOP (MME)

8-Pin MLF (ML)

Pin Description

Pin Number

Pin Name

Pin Function

1,8

OUT

Driver Output

2

VDD

Supply Input

3

NC

No Connect

4

IN

Input (Input): Logic high produces a high output voltage for the MIC44F18 and a low

output voltage for the MIC44F19/20. Logic low produces a low output voltage for the

MIC44F18 and a high output voltage for the MIC44F19/20.

5

EN/UVLO

EN / Under-Voltage Lockout (Input): Pulling this pin below low disables the driver.

When disabled, the output is in the off state (low for the MIC44F18/20 and high for

reaches the UVLO threshold. A resistor divider can set a different UVLO threshold

voltage as shown on page 1 (See “Application Information” section for more details).

6,7

GND

Ground

EP

GND

Ground. Exposed Backside Pad.

Logic Table

EN/UVLO

IN

MIC44F18

OUTPUT

MIC44F19

OUTPUT

MIC44F20

OUTPUT

0

0

LOW

HI

LOW

0

1

LOW

HI

LOW

1

0

LOW

HI

HI

1

1

HI

LOW

LOW