1、臺灣友順utc品牌原裝現貨。

2、全國范圍支持支付寶（半個月發現假貨可退貨），珠三角支持快遞代收。

3、2.5k/盤。

current mode pwm control circuits
 description
  the utc uc3842a/3843a provide the necessary functions to
implement off-line or dc to dc fixed frequency current mode ,
controlled switching circuits with minimal external components.
      features
*low start up current ( typical 0.12ma )
*automatic feed forward compensation
*pulse-by-pulse current limiting
*under-voltage lockout with hysteresis
*double pulse suppression
*high current totem pole output to drive mosfet directly
*internally trimmed band gap reference
*500khz operation