Data Sheet G14309EJ2V0DS00

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µµµµPC1909

1. PIN FUNCTION LIST

Pin No.

Symbol

Function

1

OV

Overvoltage protection

This is the input pin of the overvoltage detection comparator. Directly connect this pin to GND when not used.

2CT2

OLS shift setting

The resistor that determines the amount of level shift for dCT (an internal triangle wave that is a level-shifted CT)

is connected between this pin and the VREF pin.

3

GND

Ground

This is the signal ground pin.

4

OC

Overcurrent protection

This is the input pin of the overcurrent detection comparator. Directly connect this pin to GND when not used.

5DTC2

OUT2 dead time setting

This pins sets the dead time of the OUT2 output.

6OUT2

OUT2 output

This is the subswitch drive output pin.

7

ON/OFF

ON/OFF control

The output circuit can be switched on or off by inputting an external signal.

Directly connect this pin to VREF when not used.

8EMI2

OUT2 emitter

This is a power supply ground pin. This pin must be isolated from the signal ground pin (GND).

9VCC

Power supply

10

EMI1

OUT1 emitter

This is a power supply ground pin. This pin must be isolated from the signal ground pin (GND).

11

OUT1

OUT1 output

This is the main switch drive output pin.

12

FB

Feedback input

This is the feedback input pin of PWM comparators 1 and 2.

13

DTC1

OUT1 dead time setting

This pin sets the maximum duty of the OUT1 output and determines the minimum duty of the OUT2 output.

14

VREF

Reference voltage

This pin outputs a 4.9-V TYP. reference voltage.

15

RT

Timing resistance

The resistor that determines the oscillation frequency is connected between this pin and GND.

16

CT

Timing capacitance

The capacitor that determines the oscillation frequency is connected between this pin and GND.

This pin outputs a triangle wave.

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