
17
LTC4001
4001f
APPLICATIO S I FOR ATIO
WUUU
Figure 7. Battery-Less Start-Up
024681012
TIME (ms)
14 16 18 20 22 24
4
3
2
1
0
V
BAT
(V)
024681012
TIME (ms)
14 16 18 20 22 24
500
250
0
V
SS
(mV)
024681012
TIME (ms)
4001 F07
14 16 18 20 22 24
PWM
CHARGE
TRICKLE
CHARGE