DRV8312_14 Datasheet, PDF (5/36 Pages) Texas Instruments – Three Phase PWM Motor Driver

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NAME
OTW
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
VDD
VREG
THERMAL PAD
HEAT SLUG
PIN
DRV8312
21
28
31
39
26,27
32
40,41
17
15
5
16
7
6
18
2
11
--
N/A
DRV8312
DRV8332
SLES256D – MAY 2010 – REVISED JANUARY 2014
DRV8332
2
33
30
22
34
29
21
4
6
16
5
15
15
3
17
10
N/A
--
FUNCTION ⁽¹⁾
DESCRIPTION
Overtemperature warning signal, open-drain, active-low. An internal pull-up resistor
O
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
Fault signal, open-drain, active-low. An internal pull-up resistor to VREG (3.3 V) is
O
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-μF capacitor to AGND.
Solder the exposed thermal pad at the bottom of the DRV8312DDW package to the
T
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.
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Product Folder Links: DRV8312 DRV8332
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