KP311A
Hiah Performance Low Cost Off-ine PWM Power Switch
FEATURES
Integrated with Rectifier diode.Freewheeling diode, Feedback diode
Integrated with 500V MOSFET and High Voltage Startup Circuit
High Precision 5V Default Output
No External Rsense needed, Low BOM Cost
Support Ultra-low input Voltage (>12V)
Support Buck Topology
On/OFF Peak Current Mode Control
Less than 50mW Standby Power
Built-in 31KHz Oscillator with Frequency Shuffling
Built-in Soft Start
Very Low VDD Operation Current
Build in Protections:
Over Load Protection (OLP)
On-Chip Thermal Shutdown (OTP)
Cycle-by-Cycle Current Limiting (OCP)
Abnormal Over Current Protection(AOCP)
Leading Edge Blanking (LEB)
VDD UVLO
ASOP-7 Package Available
GENERAL DESCRIPTION
KP311AWP is a low cost, highly integrated PWM power switch for non-isolated buck applications.
KP311AWP combines a 500V Power MOSFET with the ON/OFF PWM controller in one chip. The IC can achieve high precision 5V default Output at universal AC input. In KP311AWP, Toff_min is set to 32us with frequency shuffling. The lC has built-in green mode control for light and zero loadings, which can achieves than 50mW standby power.
KP311AWP integrates functions and protections of Under Voltage Lockout (UVLO), Cycle-by-cycle Current Limiting (OCP), On-chip Thermal Shutdown(OTP)，Abnormal Over CurrentProtection (AOCP), Over Load Protection(OLP)Short Load Protection (SLP), etc.
APPLICATIONS
Small Home Appliance
Linear Regulator/RCC Replacement
Products
Related Topics
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