CR6202 Просмотр технического описания (PDF) - Unspecified

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Компоненты Описание

производитель

CR6202

Switching Power Supply Controller ICs

Unspecified 

CR6202

Fig.2 OVERALL SIGNAL WAVEFORMS OF CR6202

FB pull-up current: In normal operation, when FB=2.5V,IS=0V, pull up current on FB.

FB protecting upper limit current: In normal operation, FB=2.5V,IS=0.8V，pull down current on FB.

Internal feedback power supply voltage: In normal operation, VCC value of CR6202 power supply

without external standby feedback circuit.

IS upper limit current: FB=2.5V，external adjustable power supply to IS, there is minimal IS voltage of

pull-down current on FB.

Slope current drive: OB open current is IS function, when IS=0V,OB open current is about 24mA, and OB

open current is increasing with IS linear increasing. When IS increases 0.6V, OB open current is about

40mA.

OSC Frequency: C function of CT pin external capacitor, is about C*48000 seconds.

Electrical Characteristics

Symbol

Parameter

Ics Start-up accept current

Start-up static current

Start-up voltage

Oscillator cut off voltage

Restart voltage

Inner oscillator voltage

Icc Operating Current

Conditions

VCC=8V

Min Typ Max Unit

1.6 2.0 2.4

mA

55 80

uA

9.8 10.2 10.6

V

4.2 4.4 4.6

V

3.6

V

10.8 11.4 12

V

2.8

mA

Jun.2008 V1.2

5/7

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