Datasheet

ADP8861 Data Sheet
Rev. B | Page 18 of 40
WAIT
100µs (TYP)
G = 2
G = 1.5
0
0
1
1
1
1
0
VOUT > V
OVP
OVP FAULT
1
0
1
0
VOUT > V
OUT(REG)
TRY TO
REGULATE
VOUT TO
V
OUT(REG)
VOUT > V
OVP
OVP FAULT
VOUT < V
OVP
–
V
OVP
(HYS)
0
1
0
1
1
0
VOUT > V
OVP
OVP FAULT
0
1
0
1
1
0
EXIT
STARTUP
G = 1
STANDBY
1
0
VOUT < V
OUT(SC)
0
SCP FAULT
EXIT STANDBY
STARTUP:
CHARGE
VIN TO VOUT
VOUT > V
OUT(START)
DIE TEMP > TSD
0
TSD FAULT
DIE TEMP <
TSD – TSD
(HYS)
MIN (V
D1:D7
)
< V
HR(UP)
MIN (V
D1:D7
)
< V
HR(UP)
MIN (V
D1:D7
)
> V
DMAX
MIN (V
D1:D7
)
> V
DMAX
1
0
EXIT STANDBY
WAIT
100µs (TYP)
WAIT
100µs (TYP)
VOUT < V
OVP
–
V
OVP (HYS)
VOUT > V
OUT(REG)
TRY TO
REGULATE
VOUT TO
V
OUT(REG)
NOTES
1. V
DMAX
IS THE CALCULATED GAIN DOWN TRANSITION POINT.
VOUT < V
OVP
–
V
OVP(HYS)
1
0
08391-027
Figure 38. Fault State Machine