NCP10970 Datasheet (ON Semiconductor)

NCP10970, High-Voltage Switcher

Pin No.

Pin Name Function Description 1 SOURCE The switcher ground This pin is connected to the buck source/inductor junction and grounds the switcher circuitry.

The dissipated heat of the transistor is conducted out through this pin.

2 VCC Supplies the switcher section The switcher VCC v

High-Voltage Switcher with Linearly Regulated Output NCP10970 The NCP10970 includes a high voltage switcher, linear regulator and a dedicated comparator circuitry.

The switcher is suitable for building output voltage up to 16 V (adjustable by resistor divider on FB pin) protected against short circuit.

Dedicated internal circuitry prevents continuous conduction mode (CCM) operation improves the surge robustness, efficiency and EMI.

In no load/light load condition

NCP10970 Features

* Built

* in 670 V, 18 W RDS(on) Lateral MOSFET

* High

* voltage Start

* up Current Source

* Fixed

* frequency DCM Current

* mode Control Scheme

* End of Demagnetization Detection Ensures DCM Operation only

* Short

* circuit