DRV8303

SLOS846A – SEPTEMBER 2013 – REVISED OCTOBER 2013

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PIN FUNCTIONS (continued)

PIN

DESCRIPTION

NAME

NO.

GH_B

38

O

Gate drive output for High-Side MOSFET, half-bridge B

BST_B

39

P

Bootstrap cap pin for half-bridge B

SL_A

40

I

SH_A.

GL_A

41

O

Gate drive output for Low-Side MOSFET, half-bridge A

SH_A

42

I

PVDD.

GH_A

43

O

Gate drive output for High-Side MOSFET, half-bridge A

BST_A

44

P

Bootstrap cap pin for half-bridge A

VDD_SPI

45

I

SPI supply pin to support 3.3V or 5V logic. Connect to either 3.3V or 5V.

GND

46, 47,

O

GND pin. The exposed power pad must be electrically connected to ground plane through soldering to

(POWER PAD)

48, 49

PCB for proper operation and connected to bottom side of PCB through vias for better thermal

spreading.

4

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