5 Pin Configuration and Functions

Figure 5-1 DDV Package44-Pin HTSSOP PowerPadTop View

Table 5-1 Pin Functions

PIN		TYPE^⁽¹⁾	DESCRIPTION
NAME	NO.	TYPE^⁽¹⁾	DESCRIPTION
AGND	11	P	Analog ground
BST_A	34	P	HS bootstrap supply (BST), external .033-μF capacitor to OUT_A required
BST_B	33	P	HS bootstrap supply (BST), external .033-μF capacitor to OUT_B required
GND	6, 10, 14, 18, 28, 29, 38, 39	P	Ground.
GND_A	37	P	Power ground for half-bridge A
GND_B	30	P	Power ground for half-bridge B
GVDD_A	1, 44	P	Gate-drive voltage supply requires 0.1-μF capacitor to AGND
GVDD_B	22, 23	P	Gate-drive voltage supply requires 0.1-μF capacitor to AGND
NC	3, 4, 19, 20, 24, 25, 26, 27, 40, 41, 42, 43	—	Do not connect.
OC_ADJ	9	O	Analog overcurrent programming pin requires resistor to ground
OTW	2	O	Overtemperature warning signal, open-drain, active-low
OUT_A	36	O	Output, half-bridge A
OUT_B	31	O	Output, half-bridge B
PVDD_A	35	P	Power supply input for half-bridge A requires close decoupling of 0.01-μF capacitor in parallel with a 1.0-μF capacitor to GND_A.
PVDD_B	32	P	Power supply input for half-bridge B requires close decoupling of 0.01-μF capacitor in parallel with a 1.0-μF capacitor to GND_B.
PWM_A	8	I	Input signal for half-bridge A
PWM_B	16	I	Input signal for half-bridge B
RESET	7, 17	I	Reset signal for half-bridge A and B, active-low
SD	5	O	Shutdown signal, open-drain, active-low
VDD	21	P	Power supply for digital voltage regulator requires a 47-μF capacitor in parallel with a 0.1-μF capacitor to GND for decoupling.
VREG	12, 13, 15	P	Digital regulator supply filter pin requires 0.1-μF capacitor to AGND.

(1) I = input, O = output, P = power