TL494CDR2 データシートの表示（PDF） - ON Semiconductor

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TL494CDR2

SWITCHMODE™ Pulse Width Modulation Control Circuit

ON Semiconductor 

Vin

Vref

TL494, NCV494

Error Amplifier

+ Under Test

−

+

−

Other Error

Amplifier

Feedback

Terminal

(Pin 3)

Test

Inputs

50k

VCC = 15V

150 150

2W 2W

VCC

Deadtime

C1

Output 1

E1

Feedback

RT

C2

Output 2

CT

E2

(+)

(−) Error

(+)

(−)

Output

Ref

Control

Out

Gnd

Figure 10. Error−Amplifier Characteristics

Each

Output

Transistor

15V

C

Q

E

RL

68

VC

CL

15pF

Figure 11. Deadtime and Feedback Control Circuit

Each

Output

Transistor

15V

C

Q

E

RL

68

VEE

CL

15pF

90%

VCC

10%

tr

90%

10%

tf

Figure 12. Common−Emitter Configuration

Test Circuit and Waveform

90%

10%

Gnd

tr

90%

VEE

10%

tf

Figure 13. Emitter−Follower Configuration

Test Circuit and Waveform

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