+

D3842


Category:

PWM Controller Circuit

Voltage range

~ 30V

Reference voltage

5V±2%

Output Drive Type

Triode drive

Output current(Max)

1A

Start/maintain voltage

16V/10V

Topology

push-pull

Output channel

1

Frequency(Max)

500KHz

Duty cycle(Max)

96%

Packaging form

SOP8/DIP8

Output channel

Output channel

overview:

B3842/43/44 is a constant frequency current type Pwd controller designed specifically for offline and Dc-Dc switching power supply applications. The controller includes temperature compensation precision reference, adjustable oscillator for precise duty cycle adjustment, high gain hybrid amplifier, current sensing comparator, high current push pull output suitable for power MOST driving, and protection circuits such as single cycle hysteresis current limiting undervoltage locking, dead zone adjustable, and single pulse counting latch.

 

Main features:

● Low starting current (<0.5mA)
● Automatic feedforward compensation
● Undervoltage locking with hysteresis characteristics
● Maximum duty cycle clamping
● Working frequency can reach 500kHz
● Packaging form: DIP8, SOP8

 

application:

● switch power supply

 

Product manual

Product Consultation

Action
Submit inquiry

Related products