DRV8880_15 Datasheet, PDF (4/48 Pages) Texas Instruments – DRV8880 2-A Stepper Motor Driver With AutoTune™

DRV8880
SLVSD18A – JUNE 2015 – REVISED JULY 2015
www.ti.com
NAME
STEP
M1
M0
TRQ1
TRQ0
PAD
PIN
PWP
23
24
25
26
27
PAD
RHR
21
22
23
24
25
PAD
Pin Functions (continued)
TYPE
I
I
I
PWR
Step input
Microstepping mode
setting pins
Torque DAC current
scalar
Thermal pad
DESCRIPTION
A rising edge causes the indexer to advance one step;
internal pulldown
Sets the step mode; full, 1/2, 1/4, 1/8, 1/16; tri-level pin
Scales the current by 100%, 75%, 50%, or 25%; internal
pulldown
Must be connected to ground
External Components
COMPONENT
PIN 1
PIN 2
RECOMMENDED
C_VM1
VM
GND
0.1-µF ceramic capacitor rated for VM per VM pin
C_VM1
VM
GND
Bulk electrolytic capacitor rated for VM, recommended value is 100
µF, see Bulk Capacitance Sizing
C_VCP
C_SW
C_V3P3
R_nFAULT
R_AISEN
R_BISEN
VCP
CPH
V3P3
V_MCU ⁽¹⁾
AISEN
BISEN
VM
CPL
GND
nFAULT
GND
GND
16-V, 0.47-µF ceramic capacitor
0.1-µF X7R capacitor rated for VM
6.3-V, 0.47-µF ceramic capacitor
> 5 kΩ pullup
Sense resistor, see Sense Resistor
(1) V_MCU is not a pin on the DRV8880, but a supply voltage pullup is required for open-drain output nFAULT; nFAULT may be pulled up to
V3P3
4
Submit Documentation Feedback
Product Folder Links: DRV8880
Copyright © 2015, Texas Instruments Incorporated