DRV8823_16 Datasheet, PDF (4/32 Pages) Texas Instruments – 4-Bridge Serial Interface Motor Driver

DRV8823
SLVS913E – JANUARY 2009 – REVISED JANUARY 2016
www.ti.com
PIN
NAME
NO.
CDVREF
18
COUT1
27
COUT2
25
ISENC
26
DOUT1
22
DOUT2
20
ISEND
22
SERIAL INTERFACE
SDATA
31
SCLK
33
SCS
45
SSTB
30
RESETn
43
SLEEPn
42
TEST PINS
19
28
TEST
29
32
Pin Functions (continued)
I/O ⁽¹⁾
DESCRIPTION
EXTERNAL COMPONENTS OR CONNECTIONS
I
Bridge C and D current set
reference voltage
O Bridge C output 1
O Bridge C output 2
— Bridge C current sense
O Bridge D output 1
O Bridge D output 2
— Bridge D current sense
Sets current trip threshold.
Connect to first coil of bipolar stepper motor 2, or DC motor
winding.
Connect to current sense resistor for bridge C.
Connect to second coil of bipolar stepper motor 2, or DC motor
winding.
Connect to current sense resistor for bridge D.
I Serial data input
I Serial input clock
I Serial chip select
I Serial data strobe
I Reset input
I Sleep input
Data is clocked in on rising edge of SCLK.
Logic high enables serial data to be clocked in.
Logic high latches serial data.
Active low resets serial interface and disables outputs.
Active-low input disables outputs and charge pump.
I Test inputs
Do not connect these pins (used for factory test only).
4
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