MC34063A Ver la hoja de datos (PDF) - Analog Intergrations

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MC34063A

Industrial Standard, Universal DC/DC Converter

Analog Intergrations 

MC34063A

n BLOCK DIAGRAM

SC

1

Q2

QS

Q1

R

80

SE

2

8

DRI

7 IPK

TC 3

GND 4

CT

IS

Oscillator

1.25V

Reference

Voltage

Comparator

+

-

6

VCC

5

FB

n PIN DESCRIPTIONS

PIN 1: SC

PIN 2: SE

PIN 3: TC

- The switch collector is 1.6A.

- Darlington switch emitter

- Oscillator timing capacitor

PIN 4: GND - Power GND

PIN 5: FB - Feedback comparator inverting input

PIN 6: VCC - Power supply input

PIN 7: IPK - Highside current sense input,

VCC - VIPK=300mV

PIN 8: DRI - Drive collector

5

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