LTC4085-3/LTC4085-4
12
408534fb
Figure 1: Simplifi ed Block Diagram—PowerPath
OPERATION
–
+
–
+
7
WALL
4.25V
(RISING)
3.15V
(FALLING)
75mV (RISING)
25mV (FALLING)
1 2
10
14
IN
USB V
BUS
WALL
ADAPTER
OUT
BAT
408534 F01
CURRENT LIMIT
CONTROL
ENABLE
CHRG
CONTROL
IDEAL
DIODE
Li-Ion
LOAD
+
–
ACPR
+
