KA7540

KA7540

KA7540

KA7540

3

3

3

3

Pin Assignments

Pin Assignments

Pin Assignments

Pin Assignments

Pin Definitions

Pin Definitions

Pin Definitions

Pin Definitions

Pin Number

Pin Number

Pin Number

Pin Number

Pin Name

Pin Name

Pin Name

Pin Name

Pin Function Description

Pin Function Description

Pin Function Description

Pin Function Description

Soft start capacitor connection pin. The pin voltage determines the phase of soft

start, normal and dimming mode.

Timing capacitor connection pin. The timing capacitor is charged and discharged

to generate the sawtooth waveform that determines the oscillation frequency in

the internal oscillator block.

3Vdim

Input to the dimming stage. The pin voltage sets the switching frequency in

dimming mode.

4

Ldet

Input to the protection circuit. If the pin voltage is lower than 2V, the output of the

gate driver is inhibited.

5

GND

The ground potential of all the pins.

6OUT 2

The output of a high current power driver capable of driving the gate of a power

MOSFET.

7OUT 1

The output of a high current power driver capable of driving the gate of a power

MOSFET.

The logic and control power supply connection.

1

2

3

4

5

6

7

8

Ct

Ldet

OUT1

OUT2

GND

(Top View)

Vdim