DRV8402 Datasheet, PDF (4/18 Pages) Texas Instruments – Dual Full Bridge PWM Motor Driver

DRV8402
SLES222 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
Pin Functions
NAME
AGND
BST_A
BST_B
BST_C
PIN
DKD NO.
9
35
28
27
BST_D
20
GND
8
GND_A
32
GND_B
31
GND_C
24
GND_D
23
GVDD_A
36
GVDD_B
1
GVDD_C
18
GVDD_D
19
M1
13
M2
12
M3
11
OC_ADJ
7
OTW
2
OUT_A
33
OUT_B
30
OUT_C
25
OUT_D
22
PVDD_A
34
PVDD_B
29
PVDD_C
26
PVDD_D
21
PWM_A
4
PWM_B
6
PWM_C
14
PWM_D
16
RESET_AB
5
RESET_CD
15
FAULT
3
VDD
17
VREG
10
(1) I = input, O = output, P = power
FUNCTION ⁽¹⁾
P
P
P
P
P
P
P
P
P
P
P
P
P
P
I
I
I
O
O
O
O
O
O
P
P
P
P
I
I
I
I
I
I
O
P
P
DESCRIPTION
Analog ground
High side bootstrap supply (BST), external capacitor to OUT_A required
High side bootstrap supply (BST), external capacitor to OUT_B required
High side bootstrap supply (BST), external capacitor to OUT_C
required
High side bootstrap supply (BST), external capacitor to OUT_D
required
Ground
Power ground for half-bridge A
Power ground for half-bridge B
Power ground for half-bridge C
Power ground for half-bridge D
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Gate-drive voltage supply requires 0.1-µF capacitor to AGND
Mode selection pin
Mode selection pin
Mode selection pin
Analog overcurrent programming pin requires resistor to ground
Overtemperature warning signal, open-drain, active-low
Output, half-bridge A
Output, half-bridge B
Output, half-bridge C
Output, half-bridge D
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.
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.
Power supply input for half-bridge C requires close decoupling of
0.01-µF capacitor in parallel with a 1.0-µF capacitor to GND_C.
Power supply input for half-bridge D requires close decoupling of
0.01-µF capacitor in parallel with a 1.0-µF capacitor to GND_D.
Input signal for half-bridge A
Input signal for half-bridge B
Input signal for half-bridge C
Input signal for half-bridge D
Reset signal for half-bridge A and half-bridge B, active-low
Reset signal for half-bridge C and half-bridge D, active-low
Fault signal, open-drain, active-low
Power supply for digital voltage regulator requires a 47-µF capacitor in
parallel with a 0.1-µF capacitor to GND for decoupling.
Digital regulator supply filter pin requires 0.1-µF capacitor to AGND.
4
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