Sony STR-ZA1000ES Service Manual page 89

IC1701, 1721, 1741, 1761 TPS54331GDR
BOOT 1
BOOT THERMAL
CHARGE SHUTDOWN
VIN 2
SHUTDOWN
LOGIC
EN 3
SS 4
IC1801, 1821, 1841, 1861, 1901, 1921, 1981 BD9329AEFJ-BZSE2
BST 1 VREG
OVER CURRENT
VIN 2
PROTECT
LVS
SW 3
LVS
GND 4
ENABLE
COMPARATOR
ENABLE THRESHOLD
12 A/V
CURRENT
SENSE
OSC
IBIAS
UNDER VOLTAGE
LOCK OUT
THERMAL
SHUTDOWN
S
SLOPE
DRIVE
LOGIC
+
R
–
PWM
STR-ZA1000ES/ZA2000ES/ZA3000ES
BOOT
UNDERVOLTAGE
LOCKOUT
MINIMUM CLAMP
PWM
LATCH
S
GATE
COMPARATOR
DRIVE
LOGIC
Q R
SLOPE
COMPENSATION
FREQUENCY
OSCILLATOR
SHIFT
VIN
VREF
SOFT
START
ERROR
AMP
MAXIMUM
CLAMP
DISCHARGE
LOGIC
ECO-MODE
VOLTAGE
REFERENCE
PWM
+
+
–
ERROR
AMPLIFIER
8 SS
7 EN
6 COMP
5 FB
8 PH
7 GND
6 COMP
5 VSENSE
89