ncp1030 ON Semiconductor, ncp1030 Datasheet - Page 3

• Manufacturer Part Number: ncp1030
• Description: Low Power Pwm Controller With On-chip Power Switch And Startup Circuits For 48 V Telecom Systems
• Manufacturer: ON Semiconductor

Circuit Gate Drive
Blanking Output
Leading Edge
Power Switch
Comparator
PWM Latch
C
C
T
T
Charge
Output
Output
Signal
Ramp
PWM
V
CC(reset)
V
V
V
I
CC(on)
CC(off)
START
DRAIN
0 mA
3.0 V
2.5 V
V
V
0 V
0 V
0 V
0 V
UV
FB
Figure 3. Auxiliary Winding Operation with Output Overload Timing Diagram
standby Operation
Power-up &
Figure 2. Pulse Width Modulation Timing Diagram
Normal PWM Operating Range
Normal Operation
NCP1030, NCP1031
http://onsemi.com
3
Output Overload
Output Overload
Current Limit
Propagation Delay
COMP Voltage
Current Limit
Threshold