— 31 —
IC BLOCK DIAGRAMS (CONT.)
VCC
C5V
VCC
TSD
TSD
UVLO
UVLO
GND
OUT2
OUT1
CSV
OCP1- OCP1-
OCP2- OCP2-
STB
VREF
DT1
FB1
SS1
1NV1
CT
1NV2
SS2
FB2
DT2
C5V
VCC
C5V
VCC
VREF
C5V
3.2V
2.2V
3V
OCP2
DT2OFF
DT2Low
1,25V
VCC
DRV
REC
(VCC-5V)
LS
C5V
OCP1
VCC
C5V
Hold time
(0.2 msec)
Hold time
(1.6 msec)
Hold time
(1.6 msec)
OCP1
SS1OFF
VREF
2μA
200μA
200μA
1V± 10mV
1V± 10mV
50V± 10mV
50mVV± 10mV
VREF
MASTER
/SLAVE
Muster
mode
latch
REG
(2.5V)
UVLO
DT1OFF
STB
1.25V
2.8V
DT1Low
OVLO
TSD
OCP2
MASTER
/SLAVE
2.0V
1.5V`
DT2Low
DT1Low
SS1OFF
DT10FF
DT20FF
SS2OFF
PROTECTION LOGIC
OSC
VCC
VCC
SS2OFF
VREF
2μA
ERR
ERR
ERR
DT
ERR
LS
DT
OCP
DRV
PWM
2V
1.5V
–
+
+
–
+
+
+
+
–
+
+
–
+
–
–
+
–
+
–
+
–
–
+
–
+
IC1600, DC to DC Converter
