Sony MDR-RF5000 Service Manual page 13

• IC Block Diagrams
IC2504 LTC3401EMS#TR
RT 1 OSC
MODE 2
VIN 3
ANTIRING
SW 4
GND 5
IC2505 XC6219B282MR
VIN 1
VSS 2
CE 3
SLEEP
BURST MODE
PWM
LOGIC
CURRENT
LIMIT
ANTICROSS
COND
N
I
SENSE
AMP
VOLTAGE
-
REFERENCE
+
ON/OFF
CONTROL
EACH
CIRCUIT
CONTROL
+
CURRENT
COMP
-
+
I
ZERO
AMP
-
SLOPE
COMP
1.6A
TYP
-
+
P
1.25V
+
-
CURRENT
LIMIT
R1
R2
MDR-RF5000/RF6000
SHUTDOWN
10 SHDN
9 VC
1.25V
+
ERROR
AMP
- 8 FB
+
†
-
7 VOUT
N
6 PGOOD
5 VOUT
4 NC
13