DESCRIPTION

The device is a high voltage half bridge driver with

built in oscillator. The frequency of the oscillator can

be programmed using external resistor and capacitor. The internal circuitry of the device allows it to be

driven also by external logic signal.

The output drivers are designed to drive external nchannel power MOSFET and IGBT. The internal logic assures a dead time [typ. 1.25µs] to avoid crossconduction of the power devices.

Two version are available: L6569 and L6569A. They

differ in the low voltage gate driver start up sequence.

■ HIGH VOLTAGE RAIL UP TO 600V

■ BCD OFF LINE TECHNOLOGY

■ INTERNAL BOOTSTRAP DIODE

STRUCTURE

■ 15.6V ZENER CLAMP ON VS

■ DRIVER CURRENT CAPABILITY:

- SINK CURRENT = 270mA

- SOURCE CURRENT = 170mA

■ VERY LOW START UP CURRENT: 150µA

■ UNDER VOLTAGE LOCKOUT WITH

HYSTERESIS

■ PROGRAMMABLE OSCILLATOR

FREQUENCY

■ DEAD TIME 1.25µs

■ dV/dt IMMUNITY UP TO ±50V/ns

■ ESD PROTECTION