Datasheet

PL3378

V1.2 © 2019

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3

Pin Diagrams

The pin map is shown as below for SOP7

PL3378

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Pin Description

Pin

Description

VDD

IC power supply.

FB

Through two dividing resistors connecting to the bias winding, this pin could get

the information of output to realize the CC/CV regulation.

CS

This pin could detect the primary current by the voltage of sensing resistor

connected from CS to GND.

C

HV BJT collector Pin. This pin is connected to the primary lead of the transformer.

E

HV BJT collector Pin.

GND

IC ground.

5

Absolute Maximum Ratings

Absolute maximum ratings are the parameter values or ranges which can cause permanent

damage and affect device reliability if exceeded.

Parameter

Symbol

Value

Units

DC Supply Voltage Range(pin1)

VDD

-0.3 to VDD clamp

V

CS Input(pin4)

CS

-0.3 to 5

V

FB Input(pin3)

FB

-0.3 to 5

V

Maximum Junction Temperature

Tjmax

150

℃

Storage Temperature

Tsto

-55 to 150

℃

Lead Temperature(Soldering,10secs)

Tlea

260

℃

Note: These are stress ratings only. Stress beyond these limits may cause permanent damage to the device. Functional

operation of the device at these or any conditions beyond those indicated under Recommended Operating Conditions is

not implied. Exposure to absolute maximum rated conditions for extended periods of time may affect device reliability.