Unisonic Technologies UC3853
UC3853 is a high performance current mode PWM controller ideally suited for low standby power. It contains protection with automatic recovery including OLP, OCP, VCC OVP, BNO and OTP.| Part No. | UC3853 |
|---|---|
| Datasheet | UC3853 Download |
| Manufacturer |  Unisonic Technologies |
| Description | CURRENT MODE PWM CONTROLLER |
| Buy | Stock & Price |
APPLICATIONS
●DESCRIPTION
The UTC Low VDD startup current make the power reliable on startup design and a large value resistor could be used to minimize the standby power. At no load condition, the IC operates in power-saving mode for lower standby power, decreasing frequency for Higher conversion efficiency at light load condition. To protect the power MOSFET, Gate-drive output is fixed up to 15V max. Excellent EMI performance is achieved with UTC proprietary frequency hopping technique (ZL201020615247.1) together with soft driver control. The controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Finally a SOP-8 package saves PCB space and represents a solution of choice in cost sensitive project.●
FEATURES
* Peak Current Mode Control * Adjustable Switching Frequency * Adjustable Soft−start Timer * Adjustable Internal Ramp Compensation * Jittering Frequency ±6% of the Switching Frequency * Power-saving mode...
