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| DRV8808 Datasheet, PDF (25/38 Pages) Texas Instruments – COMBINATION MOTOR DRIVER WITH DC-DC CONVERTER | |||
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www.ti.com
DRV8808
SLVS857A â DECEMBER 2009 â REVISED AUGUST 2011
VM
(CSELECT = GND)
VthVM+
(VM = 6 V)
VthVMâ
(VM = 5 V)
DCDC_B
(Off)
DCDC_C
(Off)
300 ms
nORT
L
Protection Mask
H
(UVP, OVP)
A. When VM crosses the VthVM+ (about 6 V) with CSELECT = GND, none of three regulators are turned ON. The nORT
output is released to H after 300 ms from VthVM+ crossing.
B. LDO OCP is masked during protection mask time.
Figure 13. Power-up Timing (Power up Without DC-DC Turn on, CSELECT = GND)
Copyright © 2009â2011, Texas Instruments Incorporated
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