成人国产综合一区二区在线观看_精品亚洲Ⅴa在线无码播放_91夜色app在线下载_高清综合欧美亚洲_免费黄色视频app_JAPANESE少妇出轨内射_免费+无码+国产_日本va中文字幕波多野结衣_欧美一级人与禽亚洲精品_日韩欧美精品一区二区在线观看

Product Descriptions

SD4840/4841/4842/4843/4844 is a current mode PWM controller with low standby power and low start current for power switch.  In standby mode, the circuit enters burst mode to reduce the standby power dissipation.

The switch frequency is 67KHz with ±2.5 KHz jitter frequency for low EMI.

The stress on transformer during power on is reduced by the built-in 15ms soft start circuit to avoid the saturation of transformer. SD4840/4841/4842/4843/4844 includes under voltage lock-out, over voltage protection, leading edge blanking, over current protection and the temperature protection. The circuit will restart automatically until the system is normal after the protection is active. 

Product Features

* Lower start-up current (Typ.6μA)

* Frequency jitter for low EMI

* Overcurrent protection

* Overvoltage protection

* Undervoltage lockout

* Built-in temperature protection

* Built-in high voltage MOSFET

* Auto restart mode

* Built-in soft start

* Burst mode operation

* Cycle by cycle current limit

Product Applications

* Switch power

Specifications

Actual product photos

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

We also provide ：