Datasheet

ADP2291
Rev. A | Page 15 of 20
POWER-DOWN
VRS = 0mV
CHG = OPEN
BATTERY
FAULT
VRS = 0mV
CHG = OPEN
END OF
CHARGE
VRS = 15mV
CHG = OPEN
START
VRS = 0mV
CHG = OPEN
PRECHARGE
VRS = 15mV
CHG = LOW
FAST CHARGE
VRS = 150mV
CHG = LOW
TIME OUT
VRS = 0mV
CHG = OPEN
SHUTDOWN
VRS = 0mV
CHG = OPEN
VIN > 3.8V
VBAT > 2.8V
VBAT < 2.8V
VBAT < 4.1V
VADJ < 0.4V
VADJ > 0.4V AND TEMP < 100°C VADJ < 0.4V
VBAT < 4.1V OR
IPNP > C/10
IPNP < C/10 AND
VBAT > 4.1V
T = 30 MIN
T = 30 MIN
T = 3 HOUR
TEMP > 135°C
FROM ANYWHERE
ASYNCHRONOUSLY
VIN < 3.8V
FROM ANYWHERE
A
SYNCHRONOUSL
Y
START SEQUENCE ENDS
VADJ < 0.4V
04873-026
Figure 26. State Diagram for the ADP2291
CTIMER = 0.1 µF