Datasheet

SWCS049-024
NO SUPPLY
OFF
BACKUP
VCC7 or BB >
VBNPR
and
VCC7 < VMBLO
ACTIVE
SLEEP
VCC7 and BB < VBNPR
VCC7 < VMBLO
VCC7 > VMBHI
POWER ON
disabled
POWER ON
Enabled
And VCCS > VMBCH
VCC7 > VMBHI
VCC7 and BB < VBNPR
VCC7 and BB < VBNPR
VCC7 < VMBLO
VCC7 < VMBLO
SLEEP
disabled
SLEEP
enabled
POWER ON
disabled
BB: Backup battery voltage
NRESPWRON
HDRST
PWRON_LP_IT
Pulse
generator
T
DOINT1
T
D
DEV_ON
PWRHOLD
PWRON
DEV_OFF
THERM_TS
DEV_OFF_RST
HDRST
PWRDN_POL
PWRDN
POWER ON
ENABLE
SLEEP
ENABLE
SLEEPSIG_POL
SLEEP
INT1
DEV_SLP
AUTODEV_ON
INT1
TPS659110, TPS659112, TPS659113, TPS659116
www.ti.com SWCS049L –JUNE 2010–REVISED MARCH 2014
Embedded Power Controller (continued)
reset is asserted in this case. Everything on the device is off.
• BACKUP: The main battery supply voltage is high enough to enable the VRTC domain but not enough to
switch on all the resources. In this state, the VRTC regulator is in backup mode and only the 32K oscillator
and RTC module are operating (if enabled). All other resources are off or under reset.
• OFF: The main battery supply voltage is high enough to start the power-up sequence but device power on is
not enabled. All power supplies are in the OFF state except VRTC.
• ACTIVE: Device POWER ON enable conditions are met and regulated power supplies are on or can be
enabled with full current capability.
• SLEEP: Device SLEEP enable conditions are met and some selected regulated power supplies are in low-
power mode.
Figure 12 shows the transitions for the state-machine.
NOTE: PWRHOLD enables power-on unless the pin is programmed as GPI.
Figure 12. Embedded Power Control State-Machine
Device POWER ON enable conditions:
• None of the device POWER ON disable conditions are met.
• PWRON signal low level
• Or PWRHOLD signal high level
• Or DEV_ON control bit set to 1 (default inactive)
• Or interrupt flag active (default INT1 low) generates a POWER ON enable condition during a fixed delay
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