SLUUDA3 May 2025
Table 2-3 lists the EVM test points.
| Test Points | Description |
|---|---|
| Vin | Input voltage positive terminal |
| HG | Primary-side high side MOSFET gate, Q1 |
| VAUX | Rectified Auxiliary winding Voltage |
| SGND1 | Secondary-side ground |
| SGND2 | Secondary-side ground |
| SW | Primary-side switch node, or the intersection of Q1 and Q3 |
| VCC | Controller Supply input |
| LG | Primary-side low side MOSFET gate, Q3 |
| TP8 | Primary-side ground |
| TP9 | Primary-side ground |
| Vout | Output voltage positive terminal |
| Inj | Small signal injection terminal |
| I_opt | Feedback current measurement |
| HV | High-voltage start pin |
| HV_diode | High-voltage start pin |
| 5VP | Regulated 5-V bias |
| BLK | Input voltage sensing |
| L | AC line |
| N | AC neutral |
| LL | Light-load burst mode thresholds |
| ISNS | Resonant current sense |
| OVP_OTP | Bias winding voltage sense/External over temperature protection |
| TSET | On time min and max programming/ PFC on/off logic |