NCP12510 Series

Current-Mode PWM Controller for Off-line Power Supplies

Catalog

Current-Mode PWM Controller for Off-line Power Supplies

Part	Package / Case	Duty Cycle	Voltage - Start Up	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Output Isolation	Frequency - Switching	Topology	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Mounting Type	Fault Protection	Operating Temperature	Control Features
ON Semiconductor NCP12510ASN65T1G	SOT-23-6 Thin TSOT-23-6	80 %	18 V	6-TSOP	-40 °C	125 ¯C	Isolated	65 kHz	Flyback	8.9 V	35 V	Surface Mount	Over Power Over Temperature Over Voltage Short Circuit
ON Semiconductor NCP12510DSN65T1G	SOT-23-6 Thin TSOT-23-6	80 %	18 V	6-TSOP			Isolated	65 kHz	Flyback	8.9 V	35 V	Surface Mount	Current Limiting Over Voltage	150 °C	Soft Start
ON Semiconductor NCP12510ASN100T1G	SOT-23-6 Thin TSOT-23-6	80 %	18 V	6-TSOP	-40 °C	125 ¯C	Isolated	100 kHz	Flyback	8.9 V	35 V	Surface Mount	Over Power Over Temperature Over Voltage Short Circuit

Catalog

Current-Mode PWM Controller for Off-line Power Supplies

Key Features

• Frequency Foldback down to 26 kHz and Skip-Cycle in light load conditions

• Non-dissipative internal and adjustable Over Power Protection (OPP) circuits

• Frequency jittering from full load to skip-cycle

• Rich Set of Integrated Protections: Pre-short, OPP, OVP, OCP, SCP, OTP with Auto−Recovery or Latched Options.

• Improved IC Power Consumption

• Internal Ramp Compensation

• High Robustness and High ESD Capabilities

Description

The NCP12510 is a highly integrated PWM controller capable ofdelivering a rugged and high performance offline power supply in atiny TSOP−6 package. With a voltage supply range up to 35 V, thecontroller hosts a jittered 65−kHz or 100−kHz switching circuitryoperated in peak current mode control. When the power on thesecondary side starts decreasing, the controller automatically foldsback its switching frequency down to a minimum level of 26 kHz. Asthe power further goes down, the part enters skip cycle while limitingthe peak current. The controller has integrated protections such as Over Power Protection (OPP), Over Voltage Protection (OVP) and short-circuit protections. NCP12510 is improved and pin compatible controller based on very popular flyback controller NCP1250.