High Performance Active Clamp/Reset PWM Controller

The NCP1562x is a family of voltage mode controllers NCP1562 designed for DC-DC Converters requiring high efficiency and low parts count. These controllers incorporate two in phase outputs with an overlap delay to prevent simultaneous conduction and facilitates soft switching. The main output is designed for driving a forward converter primary MOSFET The secondary output is designed for driving an active clamp circuit MOSFET a synchronous Rectifier on the secondary side, or an asymmetric half bridge circuit. The NCP1562 family reduces component count and system size by incorporating high accuracy on critical specifications such as maximum duty cycle limit, undervoltage detector and overcurrent threshold. Two distinctive features of the NCP1562 are soft-stop and a cycle skip current limit with a time threshold. Softstop circuitry powers down the converter in a controlled manner if a severe fault is detected. The cycle skip detector enables a softstop sequence if a continuous overcurrent condition is present. Additional features found in the NCP1562 include line feedforward, frequency synchronization up to 1.0 MHz, cycle by cycle current limit with leading edge blanking (LEB), independent under and overvoltage detectors, adjustable output overlap delay, programmable maximum duty cycle, internal startup circuit and soft-start.
By ON Semiconductor
NCP1562 's PackagesNCP1562 's pdf datasheet

NCP1562 Pinout, Pinouts
NCP1562 pinout,Pin out
This is one package pinout of NCP1562,If you need more pinouts please download NCP1562's pdf datasheet.

NCP1562 Application circuits
NCP1562 circuits
This is one application circuit of NCP1562,If you need more circuits,please download NCP1562's pdf datasheet.

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