AC-DC Controllers
WT7162RGUG24B
| 【 General Description 】 |
| The WT7162RGUG24B is a high frequency multi-mode (QR/Valley Switching) Flyback PWM controller with an integrated 650V 225mΩ enhancement mode GaN FET. It is specifically designed to work with USB PD controller to provide a total solution for USB PD or a programmable power adapter. The WT7162RGUG24B helps to improve the overall efficiency and optimize the product performance. It operates in quasi-resonant (QR) mode during heavy load and operates in discontinuous conduction mode with valley switching during light load. |
| The WT7162RGUG24B minimizes the components counts and is available in a QFN 8*8 package. It provides important protection features, such as Brown In/Out, VDD OVP, OLP, OCP and Output Short Circuit Protection. Without an external LDO circuit, the WT7162RGUG24B can easily provide 3.3V to 21V (7x volts) wide-range output voltage application to effectively reduce total BOM cost. |
| 【 Features 】 | |
| ● | Built-in 650V 225mΩ (Typ.) Enhancement Mode GaN FET |
| ● | 180 kHz Max. Frequency Operation |
| ● | 700V Ultra HV Start-up Current |
| ● | Ultra HV Valley Charge Mode (VCM) for Wide Output Voltage Operation (USB PD 3.0 & PPS 3.3V~21V) |
| ● | Optimized for Wide Output Voltage |
| -Adaptive OCP Compensation with Adjustable Line Compensation | |
| -Adaptive Green Mode Control | |
| -No External VDD Linear Regulator Circuit | |
| -Only One VDD Auxiliary Winding | |
| ● | QR Mode/Valley-Switching Multi-Mode Operation |
| ● | Built-in X-Cap Discharge Function |
| ● | Internal Soft-Start Function |
| ● | Protection: |
| -Brown In/Out Protection on HV Pin | |
| -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 Protection | |
| ● | Green Package: QFN 8*8 |
| 【 Application Circuit 】 |
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