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WT7161RM
The WT7161RM is a high performance multi-mode (CCM/Valley Switching) Flyback PWM controller. It is specifically designed to work with USB PD controller to provide a total solution for USB PD or a programmable power adapter. The WT7161RM helps to improve the overall efficiency and optimize the product performance. It operates in continuous Current Mode (CCM) during heavy load and operates in discontinuous conduction mode with valley switching during light load. The WT7161RM minimizes the components counts and is available in a SOP-8 package. It provides important protection features, such as Brown In/Out, Vo UVP, VDD OVP, OLP, OCP and Output Short Circuit Protection. Without an external LDO circuit, the WT7161RM can easily provide wide-range output voltage application to effectively reduce total BOM cost.
Features
- No Load Power Consumption < 30mW
- 700V Ultra HV Start-up Current
- Ultra HV Valley Charge Mode (VCM) for Wide Output Voltage Operation
- Optimized for Wide Output Voltage
- OCP Compensation with Adjustable Line Compensation
- Adaptive Green Mode Control
- No External VDD Linear Regulator Circuit
- Only One VDD Auxiliary Winding
- CCM/DCM/Valley-Switching Multi-Mode Operation
- DRV pin with Soft Driver to Reduce EMI Noise
- Built-in X-Cap Discharge Function
- Internal Soft-Start Function
- Protection:
- Brown In/Out Protection on HV Pin
- Output Under Voltage Protection (VS_UVP)
- Output Over Voltage Protection (VS_OVP)
- VDD Over Voltage Protection (VDD_OVP)
- Open Loop Protection (OLP) when Feedback Loop Open
- Over Current Protection (OCP)
- Internal Over Temperature Protection
- CS Pin Open/Short Protection
- Green Package: 8-pin SOP
- No Load Power Consumption < 30mW
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应用 / 电路图
