DRV8412_11 Datasheet, PDF (5/31 Pages) Texas Instruments – Dual Full Bridge PWM Motor Driver

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NAME
M2
M3
NC
OC_ADJ
OTW
PIN
DRV8412
9
10
3,4,19,20,25,42
14
21
OUT_A
OUT_B
OUT_C
OUT_D
PVDD_A
PVDD_B
PVDD_C
PVDD_D
PWM_A
PWM_B
PWM_C
PWM_D
RESET_AB
RESET_CD
FAULT
28
31
36
39
26,27
32
35
40,41
17
15
7
5
16
6
18
VDD
2
VREG
11
THERMAL PAD
-
HEAT SLUG
N/A
DRV8432
12
11
–
7
2
33
30
25
22
34
29
26
21
4
6
14
16
5
15
3
17
10
N/A
-
DRV8412
DRV8432
SLES242D – DECEMBER 2009 – REVISED JULY 2011
FUNCTION ⁽¹⁾
I
I
–
O
O
O
O
O
O
P
P
P
P
I
I
I
I
I
I
O
P
P
T
T
DESCRIPTION
Mode selection pin
Reserved mode selection pin, AGND connection is recommended
No connection pin. Ground connection is recommended
Analog overcurrent programming pin, requires resistor to AGND
Overtemperature warning signal, open-drain, active-low. An internal pull-up resistor
to VREG (3.3 V) is provided on output. Level compliance for 5-V logic can be
obtained by adding external pull-up resistor to 5 V
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 capacitor to ground.
Power supply input for half-bridge B requires close decoupling capacitor to gound.
Power supply input for half-bridge C requires close decoupling capacitor to ground.
Power supply input for half-bridge D requires close decoupling capacitor to ground.
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. An internal pull-up resistor to VREG (3.3 V) is
provided on output. Level compliance for 5-V logic can be obtained by adding
external pull-up resistor to 5 V
Power supply for digital voltage regulator requires capacitor to ground for
decoupling.
Digital regulator supply filter pin requires 0.1-μF capacitor to AGND.
Solder the exposed thermal pad to the landing pad on the pcb. Connect landing
pad to bottom side of pcb through via for better thermal dissipation.
Mount heat sink with thermal interface on top of the heat slug for best thermal
performance.
Copyright © 2009–2011, Texas Instruments Incorporated
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