Sony DR-BT50 Service Manual page 8

DR-BT50
IC261 BQ24010ADRCR
IN 1
VCC 2
STAT1 3
4
STAT2
V
5
VSS
IC251 XC9103D093MR
FB 1
VDD 2
CE 3
8
V
I(BAT)
V
O(REG)
V
(ISET)
CHG ENABLE
VSET
VCC
CHG ENABLE
REFERENCE
VCC V
O(REG)
AND BIAS
V
I(BAT)
V
(SLP)
V
O(REG)
V
I(BAT)
DEGLITCH
V
(RCH)
V
I(BAT)
VSET
V
I(SET)
(PRECHG)
DEGLITCH
V
(TAPER)
V
I(SET)
DEGLITCH
V
(TERM)
CURRENT
RIPPLE DETECT
AND FB
+
VDD
–
ERROR AMP
VREF WITH
PWM/PFM
SOFT START,
CONTROLER
CE
DEGLITCH
CHARGE
CONTROL,
TIMER,
AND
DISPLAY
LOGIC
I
RECHARGE (FAULT)
I
PRECHARGE
(DETECT)
CHG ENABLE
TAPER
TERM
PHASE
COMPENSATION
PWM
COMPARATOR
+
BAFFER,
DRIVER
–
RAMP WAVE
GENERATOR,
OSC
I I
(DETECT) (FAULT)
V
I(BAT)
ENABLE ENABLE
VCC
THERMAL
SHUTDOWN
PG
ENABLE
ENABLE
VDD
5 EXT
4 GND
10 OUT
9 BAT
8 TS
7 PG
6
ISET