DRV8305-Q1_16 Datasheet, PDF (3/54 Pages) Texas Instruments – Three-Phase Automotive Gate Driver

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5 Pin Configuration and Functions
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48-Pin HTQFP
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DRV8305-Q1
SLVSD12A – MAY 2015 – REVISED MARCH 2016
EN_GATE
1
INHA
2
INLA
3
INHB
4
INLB
5
INHC
6
INLC
7
nFAULT
8
nSCS
9
SDI
10
SDO
11
SCLK
12
PowerPAD
(GND)
36
GHA
35
SHA
34
SLA
33
GLA
32
GLB
31
SLB
30
SHB
29
GHB
28
GHC
27
SHC
26
SLC
25
GLC
PIN
NAME
NO.
EN_GATE
1
INHA
2
INLA
3
INHB
4
INLB
5
INHC
6
INLC
7
nFAULT
8
nSCS
9
SDI
10
SDO
11
SCLK
12
PWRGD
13
GND
AVDD
SO1
SO2
SO3
14, 45
15
16
17
18
Pin Functions
I/O
DESCRIPTION
I Enable gate
I Bridge PWM input
I Bridge PWM input
I Bridge PWM input
I Bridge PWM input
I Bridge PWM input
I Bridge PWM input
OD Fault indicator
I SPI chip select
I SPI input
O SPI output
I SPI clock
OD Power good
P Device ground
P Analog regulator
O Current amplifier output
O Current amplifier output
O Current amplifier output
Enables the gate driver and current shunt amplifiers; internal
pulldown
PWM input signal for bridge A high side
PWM input signal for bridge A low side
PWM input signal for bridge B high side
PWM input signal for bridge B low side
PWM input signal for bridge C high side
PWM input signal for bridge C low side
When low indicates a fault has occurred; open drain;
external pullup to MCU power supply needed (1 kΩ to 10
kΩ)
Select/enable for SPI; active low
SPI input signal
SPI output signal
SPI clock signal
VREG and MCU watchdog fault indication; open drain;
external pullup to MCU power supply needed (1 kΩ to 10
kΩ)
Must be connected to ground
5-V internal analog supply regulator; bypass to GND with a
6.3-V, 1-µF ceramic capacitor
Output of current sense amplifier 1
Output of current sense amplifier 2
Output of current sense amplifier 3
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