TL494

7

MOTOROLA ANALOG IC DEVICE DATA

Figure 10. Error–Amplifier Characteristics

Figure 11. Deadtime and Feedback Control Circuit

Figure 12. Common–Emitter Configuration

Test Circuit and Waveform

+

+

Vin

Error Amplifier

Under Test

Feedback

Terminal

(Pin 3)

Other Error

Amplifier

Vref

VCC = 15V

150

2W

Output 1

Output 2

C1

E1

C2

E2

Ref

Out

Gnd

Output

Control

(+)

(+)

(–)

(–)

Feedback

Deadtime

Error

VCC

Test

Inputs

50k

RT

CT

150

2W

Figure 13. Emitter–Follower Configuration

Test Circuit and Waveform

RL

68

VC

CL

15pF

C

E

Q

Each

Output

Transistor

15V

90%

VCC

10%

90%

10%

tr

tf

RL

68

VEE

CL

15pF

C

E

Q

Each

Output

Transistor

15V

90%

VEE

10%

90%

10%

tr

tf

–

–

Gnd