RS2138

V1.0

3

January 2013

ORDER INFORMATION

Device

Device Code

RS2138 Y Z

Y is package & Pin Assignments designator:

P: DIP-8

Z is Lead Free designator:

P: Commercial Standard, Lead (Pb) Free and Phosphorous (P) Free Package

G: Green (Halogen Free with Commercial Standard)

PIN ASSIGNMENTS

PIN DESCRIPTION

Pin Name

Description

Pin No.

VCC

Power supply

1

COMP

Loop compensation for CV stability

2

INV

The voltage feedback from auxiliary winding. Connected to resistor divider from auxiliary

winding reflecting output voltage. PWM duty cycle is determined by EA output and current

sense signal at pin 4.

3

CS

Current sense input

4

DRAIN

HV MOSFET drain pin. The Drain pin is connected to the primary lead of the transformer

5, 6

GND

Ground

7, 8