TL1451 Ver la hoja de datos (PDF) - Unisonic Technologies

Número de pieza

componentes Descripción

fabricante

TL1451

DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS

Unisonic Technologies 

TL1451

TEST CIRCUIT

S1

CPE

0.47μF

LINEAR INTEGRATED CIRCUIT

Test

Input VCC = 5V

RL

4.7kΩ

16 15 14 13 12 11 10 9

UTC TL1451

12345678

RL

4.7kΩ

OUT1

OUT2

CT

330pF

TIMING DIAGRAM

Oscillator Triangle Waveform

Error Amplifier Output

Dead-Time Input Voltage

Short-Circuit Protection

Comparator Input Voltage

PWM Comparator Output Voltage

RT

10kΩ

Test

Input

Output Transistor Collector

Waveform

Protection Enable

Terminal Waveform

Short-Circuit Protection

Comparator Output

Power Supply Voltage

2.8V TYP

* Protection Enable Time, tpe = (0.051 × 106 × Cpe) in seconds

2.0V

1.6V

1.4V

1.25V

H

L

Dead Time 100%

H

L

0.6V

0V

Tpe*

H

L

3.6V

0V

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

5 of 14

QW-R103-011,C

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