DRV8829_15 Datasheet, PDF (12/27 Pages) Texas Instruments – DRV8829 5-A 45-V Single H-Bridge Motor Driver

DRV8829
SLVSA74E – MAY 2010 – REVISED SEPTEMBER 2015
www.ti.com
Figure 4. Decay Modes
The DRV8829 supports fast decay, slow decay and a mixed decay mode. Slow, fast, or mixed decay mode is
selected by the state of the DECAY pin - logic low selects slow decay, open selects mixed decay operation, and
logic high sets fast decay mode. The DECAY pin has both an internal pullup resistor of approximately 130 kΩ
and an internal pulldown resistor of approximately 80 kΩ. This sets the mixed decay mode if the pin is left open
or undriven.
Mixed decay mode begins as fast decay, but at a fixed period of time (75% of the PWM cycle) switches to slow
decay mode for the remainder of the fixed PWM period.
12
Submit Documentation Feedback
Product Folder Links: DRV8829
Copyright © 2010–2015, Texas Instruments Incorporated