DESCRIPTION

The UTC UCS1701S is an integrated PWM controller and
Power MOSFET specifically designed for switching operation
with minimal external components. The UTC UCS1701S is
designed to provide several special enhancements to satisfy the
needs, for example, Power-Saving mode for low standby power,
Frequency Hopping , Constant Output Power Limiting , Slope
Compensation ,Over Current Protection (OCP), Over Voltage
Protection (OVP), Over Load Protection (OLP), Under Voltage
Lock Out (UVLO), Over Temperature Protection (OTP), etc. IC
will be shutdown or can auto-restart in situations.

FEATURES

* Internal Power MOSFET (700V)
* Programming Gate Driver Capability
* Frequency hopping for Improved EMI Performance.
* Lower than 30mW Standby Power Design
* Linearly decreasing frequency to 20~35KHz during light load
* Internal Soft start
* Internal Slope Compensation
* Constant Power Limiting for universal AC input Range
* Gate Output Maximum Voltage Clamp(16V)
* Over temperature protection
* Over load protection
* Over voltage protection
* Leading edge blanking
* Cycle-by-Cycle current limiting
* Under Voltage Lock Out