NWZ-S515/S516/S615F/S616F/S618F
32
IC903 MAX1557ETB
COMPARATOR
CURRENT-LIMIT
COMPARATOR
PWM
COMPARATOR
SLOPE
SENSE
CURRENT
AMPLIFIER
ERROR
PROTECTION
SHORT-CIRCUIT
DETECT
ZERO-CROSS
1.25V
REFERENCE
VOLTAGE
OUTPUT
SELECTOR
AUTO SKIP
PWM
CONTROL
ENTER SKIP/
SKIP-OVER
SR OFF
BIAS
CLOCK
1MHZ
0.675V
10
D1
9
INP
8
LX
7
PGND
6
D2
1
IN
2
GND
3
SS
4
OUT
5
XSHDN
11
PGND
DRIVER