DRV8860 Datasheet, PDF (3/31 Pages) Texas Instruments – 8 Channel Serial Interface Low-Side Driver

DRV8860
www.ti.com
SLRS065A – SEPTEMBER 2013 – REVISED NOVEMBER 2013
PW (TSSOP) PACKAGE
(TOP VIEW)
VM ¹
DIN 2
CLK 3
LATCH 4
GND ⁵
DOUT ⁶
nFAULT ⁷
ENABLE 8
16 _OUT1
15 OUT2
14 OUT3
13 OUT4
12 OUT5
11 OUT6
10 OUT7
9 OUT8
NAME
PIN I/O⁽¹⁾
DESCRIPTION
POWER AND GROUND
GND
5
— Device ground
VM
1
— Motor power supply
CONTROL AND SERIAL INTERFACE
ENABLE
8
I
Output stage enable
control input
LATCH
4
I Serial latch signal
CLK
3
I Serial clock input
DIN
DOUT
STATUS
2
I Serial data input
6
O Serial data output
nFAULT
7 OD Fault
OUTPUT
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
16 O Low-side output 1
15 O Low-side output 2
14 O Low-side output 3
13 O Low-side output 4
12 O Low-side output 5
11 O Low-side output 6
10 O Low-side output 7
9
O Low-side output 8
Pin Functions
EXTERNAL COMPONENTS OR CONNECTIONS
All pins must be connected to ground
Connect to motor supply voltage. Bypass to GND with a 0.1μF ceramic capacitor
plus a 10μF electrolytic capacitor.
Logic high to enable outputs, logic low to disable outputs. Internal logic and
registers can be read and written to when ENABLE is logic low. Internal pulldown.
Refer to serial communication waveforms. Internal pulldown.
Rising edge clocks data into part for write operations. Falling edge clocks data out
of part for read operations. Internal pulldown.
Serial data input from controller. Internal pulldown.
Serial data output to controller. Open-drain output with internal pullup.
Logic low when in fault condition. Open-drain output requires external pullup.
Faults: OCP, OL, OTS, UVLO
NFET output driver. Connect external load between this pin and VM
NFET output driver. Connect external load between this pin and VM
NFET output driver. Connect external load between this pin and VM
NFET output driver. Connect external load between this pin and VM
NFET output driver. Connect external load between this pin and VM
NFET output driver. Connect external load between this pin and VM
NFET output driver. Connect external load between this pin and VM
NFET output driver. Connect external load between this pin and VM
(1) Directions: I = input, O = output, OZ = tri-state output, OD = open-drain output, IO = input/output
Critical Components
PIN
NAME
COMPONENT
1
VM
10µF electrolytic rated for VM voltage to GND,
0.1µF ceramic rated for VM voltage to GND
7
nFAULT
Requires external pullup to logic supply
Copyright © 2013, Texas Instruments Incorporated
Product Folder Links: DRV8860
Submit Documentation Feedback
3