WINSEMI WS3256
High Precision Primary-Side Off-line PWM Power Switch
| Part No. | WS3256 |
|---|---|
| Datasheet | WS3256 Download |
| Manufacturer |  WINSEMI |
| Description | High Precision Primary-Side Off-line PWM Power Switch |
| Buy | Stock & Price |
DESCRIPTION
High Precision Primary-Side Off-line PWM Power SwitchFEATURES
5uA ultra-low startup current 2mA Low operating current ±5% Constant Voltage Regulation at Universal AC input Primary-side Sensing and Regulation Without TL431 and Opto-coupler Programmable CV and CC Regulation Built-in Primary winding inductance compensation Programmable cable drop compensation Built-in soft start Built-in Leading-edge blanking Cycle by cycle over current protection (OCP) VCC over voltage clamp & under voltage lockout( UVLO) Maximum Gate output voltage clamped at 12V Frequency jittering Ultra low standby power (<100mW)APPLICATIONS
Low power AC/DC offline SMPS for Cell Phone Charger Digital Cameras Charger Small Power Adapter Auxiliary Power for PC, TV etc. Linear Regulator/RCC ReplacementGENERAL DESCRIPTION
WS3256 is a high-integrated offline PWM controller, optimized for high performance low power AC/DC charger and adapter application. WS3256 operates in primary-side sensing and regulation. Consequently, optocoupler and TL431 could be eliminated, thus reduce the cost.
