DRV8702D-Q1 Datasheet, PDF (4/66 Pages) Texas Instruments – Automotive Half-Bridge Gate Driver

DRV8702D-Q1, DRV8703D-Q1
SLVSDX8 – MARCH 2017
www.ti.com
NAME
MODE
NC
nFAULT
nSCS
nSLEEP
nWDFLT
RSVD
RSVD
SCLK
SDI
SDO
SH
SN
SO
SP
SP
VCP
VDRAIN
VDS
VM
VREF
PIN
NO.
DRV8702D-Q1 DRV8703D-Q1
11
11
32
32
10
10
—
5
8
8
—
9
26
26
24
24
—
7
—
6
—
4
19
19
22
22
16
16
21
21
23
23
29
29
27
27
6
—
28
28
15
15
Pin Functions (continued)
TYPE ⁽¹⁾
DESCRIPTION
I
NC
OD
I
I
OD
RSVD
RSVD
I
I
OD
I
I
O
I
I
PWR
I
I
PWR
I
Mode control pin. Pull this pin to logic high for half-bridge operation without
internal current regulation. Leave this pin as no-connect for half-bridge
operation with internal current regulation. Operation of this pin is latched on
power up or when exiting sleep mode.
No connect. No internal connection
Fault indication pin. This pin is pulled logic low when a fault condition occurs.
This pin is an open-drain output that requires an external pullup resistor.
SPI chip select. This pin is the select and enable for SPI. This pin is active low.
Device sleep mode. Pull this pin to logic low to put device into a low-power
sleep mode with the FETs in high impedance (Hi-Z). This pin is connected to
an internal pulldown resistor.
Watchdog fault indication pin. This pin is pulled logic low when a watchdog fault
condition occurs. This pin is an open-drain output that requires an external
pullup resistor.
Reserved. Do not connect anything.
Reserved. Do not connect anything.
SPI clock. This pin is for the SPI clock signal.
SPI input. This pin is for the SPI input signal.
SPI output. This pin is for the SPI output signal. This pin is an open-drain
output that requires an external pullup resistor.
High-side source. Connect this pin to the high-side FET source.
Shunt-amplifier negative input. Connect this pin to the current-sense resistor.
Shunt-amplifier output. The voltage on this pin is equal to the SP voltage times
A_V plus an offset. Place no more than 1 nF of capacitance on this pin.
Shunt-amplifier positive input. Connect this pin to the current-sense resistor.
Shunt-amplifier positive input. Connect this pin to the current-sense resistor.
Charge-pump output. Connect a 16-V, 1-µF ceramic capacitor between this pin
and the VM pin.
High-side FET drain connection. This pin is common for the half-bridge.
VDS monitor setting pin. The resistor value or voltage forced on this pin sets
the VDS monitor threshold. For more information see the VDS Configuration
section.
Power supply. Connect this pin to the motor supply voltage. Bypass this pin to
ground with a 0.1-µF ceramic plus a 10-µF (minimum) capacitor.
Current set reference input. The voltage on this pin sets the driver chopping
current.
4
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