Connection Diagram

20117901

Top View

SO-8 (NS Package # M08A)

θ

or

LLP-8 (NS Package # SDC08A)

θ

Ordering Information

Order Number

Size

NSC Drawing #

Package Type

Supplied As

LM27222M

SO-8

M08A

Rail

95 Units/Rail

LM27222MX

Tape and Reel

2500 Units/Reel

LM27222SD

LLP-8

SDC08A

Tape and Reel

1000 Units/Reel

LM27222SDX

Tape and Reel

4500 Units/Reel

Pin Descriptions

Pin #

Pin Name

Pin Function

1

SW

High-side driver return. Should be connected to the common node of high and low-side MOSFETs.

2

HG

High-side gate drive output. Should be connected to the high-side MOSFET gate. Pulled down

internally to SW with a 10K resistor to prevent spurious turn on of the high-side MOSFET when the

driver is off.

3

CB

Bootstrap. Accepts a bootstrap voltage for powering the high-side driver.

4

IN

Accepts a PWM signal from a controller. Active High. Pulled down internally to GND with a 150K

resistor to prevent spurious turn on of the high-side MOSFET when the controller is inactive.

5

LEN

Low-side gate enable. Active High. Pulled down internally to GND with a 150K resistor to prevent

spurious turn-on of the low-side MOSFET when the controller is inactive.

6V

CC

Connect to +5V supply.

7

LG

Low-side gate drive output. Should be connected to low-side MOSFET gate. Pulled down internally to

GND with a 10K resistor to prevent spurious turn on of the low-side MOSFET when the driver is off.

8

GND

Ground.

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