DRV8312 Datasheet, PDF (5/31 Pages) Texas Instruments – Three Phase PWM Motor Driver

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NAME
OTW
PIN
DRV8312
21
OUT_A
OUT_B
OUT_C
PVDD_A
PVDD_B
PVDD_C
PWM_A
PWM_B
PWM_C
RESET_A
RESET_B
RESET_C
FAULT
28
31
39
26,27
32
40,41
17
15
5
16
7
6
18
VDD
2
VREG
11
THERMAL PAD
--
HEAT SLUG
N/A
DRV8312
DRV8332
SLES256 – MAY 2010
DRV8332
2
33
30
22
34
29
21
4
6
16
5
15
15
3
17
10
N/A
--
FUNCTION ⁽¹⁾
DESCRIPTION
O
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
O
Output, half-bridge A
O
Output, half-bridge B
O
Output, half-bridge C
P
Power supply input for half-bridge A requires close decoupling capacitor to ground.
P
Power supply input for half-bridge B requires close decoupling capacitor to gound.
P
Power supply input for half-bridge C requires close decoupling capacitor to ground.
I
Input signal for half-bridge A
I
Input signal for half-bridge B
I
Input signal for half-bridge C
I
Reset signal for half-bridge A, active-low
I
Reset signal for half-bridge B, active-low
I
Reset signal for half-bridge C, active-low
O
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
P
Power supply for digital voltage regulator requires capacitor to ground for
decoupling.
P
Digital regulator supply filter pin requires 0.1-mF capacitor to AGND.
T
Solder the exposed thermal pad at the bottom of the DRV8312DDW package to the
landing pad on the PCB. Connect the landing pad through vias to large ground
plate for better thermal dissipation.
T
Mount heatsink with thermal interface to the heat slug on the top of the
DRV8332DKD package to improve thermal dissipation.
Copyright © 2010, Texas Instruments Incorporated
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Product Folder Link(s): DRV8312 DRV8332