TL598

PULSE-WIDTH-MODULATION CONTROL CIRCUITS

SLVS053C – FEBRUARY 1988 – REVISED JULY 1999

8

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

MAIN DEVICE TEST CIRCUIT

ERROR AMPLIFIER TEST CIRCUIT

FEEDBACK

REF

–

+

VI

+

–

OUTPUT CONFIGURATION

VC

Output

POWER GND

OUTPUT 2

OUTPUT 1

15 V

50 k

Ω

15 V

POWER GND

OUT2

OUT1

VC

OUTPUT CTRL

REF

Inputs

Test

SIGNAL GND

RT

CT

DTC

FEEDBACK

IN–

IN+

VCC

IN–

IN+

12 k

Ω

0.001

µF

1

2

3

4

5

6

7

16

15

14

13

11

8

9

10

12

ERROR

AMP 1

ERROR

AMP 2

Figure 1. Test Circuits

OUTPUT CONFIGURATION

VC

Output

POWER GND

CL = 1500 pF

90%

10%

tr

tf

10%

90%

0 V

OUTPUT VOLTAGE WAVEFORM

Figure 2. Switching Output Configuration and Voltage Waveform