Diodes AUR9807 - Manual (Page 4)

Data Sheet
Single-cell Li-Ion Charger IC with System Power Management AUR9807
Nov. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
4
Functional Block Diagram
Charge
Control Timer
and Display
Logic
AC Charge Enable
BAT Charge Enable
500mA/100mA
Fast Precharge
V
OUT
ISET2
/PG
STAT1
STAT2
1C - 500mA
C/S - 100mA
V
IN
V
BAT
Sleep
V
TERM
V
I(ISET1)
Termation
V
LOWV
V
BAT
Precharge
V
RCH
V
BAT
Recharge
CE
MODE
1V
Power Source Selection
TS
V
LTF
Thermal
Shutdown
V
HTF
APM
1V
IN
Q1
OUT
Q2
VREF 3.3V Short-Circuit
Recovery
BAT
ISET1
V
OUT
V
SET
100mA
500mA
Power Source
Selection
V
ISENSE
TMR Oscillator
V
OUT(REG)
I
SENSE
GND
UVLO
Fa
ult
Re
co
ve
ry
V
BAT
BA
T
S
hor
t-
Cir
cuit
Re
co
very
T
J(REG)
T
J
V
APM
V
SET
V
SET
V
I(ISET1)
V
BAT(REG)
V
BAT
I
AMP
V
I(ISET1)
SYSOFF
V
OUT
V
BAT
I
TS
1
2
3
4
5, 6
7
8
9
10
11
12
13
14
15, 16, 17
18
19, 20
Figure 3. Functional Block Diagram of AUR9807