UC3842AD1 Просмотр технического описания (PDF) - STMicroelectronics

Номер в каталоге

Компоненты Описание

производитель

UC3842AD1

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

STMicroelectronics 

UC384XA - UC284XA

Figure 23. Error Amplifier Compensation

From VO

Ri

Rd Cf

+

2.5V

1mA

+

2

Rf

-

EA

2R

R

1

5

Error Amp compensation circuit for stabilizing any current-mode topology except

for boost and flyback converters operating with continuous inductor current.

From VO

RP

Ri

CP

Rd Cf

+

2.5V

1mA

+

2

Rf

-

EA

2R

R

1

5

D95IN351

Error Amp compensation circuit for stabilizing current-mode boost and flyback

topologies operating with continuous inductor current.

Figure 24. External Clock Synchronization.

EXTERNAL

SYNC INPUT 0.01µF

VREF

8

RT

4

CT

2

47Ω

1

R

R

+

+

-

EA

BIAS

OSC

2R

R

5

The diode clamp is required if the Sync amplitude is large enough to cause

the bottom side of CT to go more than 300mV below ground

D95IN352

10/16

Share Link: