A of the chip has been reported, though its exact functionality remains undocumented.
| | | | | | --- | --- | --- | --- | | | Function | Pin # | Function | | 1 | Surge Protection Detection Input | 9 | N/C | | 2 | (Unknown) | 10 | +5V Power Supply for Logic | | 3 | Pulse Width Modulation (PWM) Output for IGBT gate control | 11 | (Unknown) | | 4 | Synchronization Input A (Va) from the resonant tank | 12 | (Unknown) | | 5 | (Unknown) | 13 | (Unknown) | | 6 | (Unknown) | 14 | (Unknown) | | 7 | (Unknown) | 15 | Synchronization Input B (Vb) from the resonant tank | | 8 | Ground (GND) | 16 | Primary Voltage Input (Vac) from the mains rectifier | highway 09 ic datasheet
Regulates the power output of the device by adjusting switching frequencies. A of the chip has been reported, though
A: Not directly. Use a single higher-current regulator or add an external pass transistor. Paralleling without load sharing resistors may cause thermal runaway. Use a single higher-current regulator or add an
: Monitors output power or temperature for regulation.
A vital safety feature that monitors current through the primary winding. If it detects a surge beyond safe thresholds, it triggers an immediate shutdown to prevent hardware failure.