Datasheet

V
CC
>
V
BATT
+ V
OK
Yes
No
Powerdown Mode
POR Mode
V
CC
>
V
POR
Yes
Yes
CHG_IN
present
No
Yes
USBpwr
present
Yes
CHG_IN Mode USBpwr Mode
Charge Interrupt
En_b
low
Yes
No
Mode
Timer stops
Maintenance Mode
V
BATT
<
V
RESTART
Yes
No
Bad Battery Mode
Disconnect power
Source to restart
Charger.
Ts pin
out of window
No
Yes
Suspend Mode
From any mode except
POR and Powerdown
If Ts pin is not in desired
range, LM3658 enters
Suspend mode. Timer stops.
Ts pin
Is floating
No
Yes
LDO mode
From any mode (except POR &
power down)
If Ts pin is floating, LM3658 goes to
the LDO mode after 300 msec
deglitch
LM3658
www.ti.com SNVS328E –MAY 2005–REVISED MARCH 2007
LM3658 FLOWCHARTS
Figure 2. LM3658 Flowchart
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