The HIGHWAY09A is an 8-bit IC manufactured by Holtek, primarily used as a controller for induction cookers and motor control applications. It features a PDIP-16 package, over-current/temperature protection, and is often found in Midea-branded appliances. Technical documentation and sourcing options are available on Datasheet Archive HIGHWAY09A Holtek | | Xecor
If you misremembered the name:
Automotive Systems: Used in ECUs and instrument clusters to provide a regulated 5V power supply or manage motor control. Highway09a Ic Datasheet Pdf
| Parameter | Condition | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | On-State Voltage Drop | At rated current | - | 1.5 | 1.8 | V AC | | Off-State Leakage Current | At rated voltage | - | - | 5 | mA | | Turn-On Time | Zero-crossing type | - | 10 | - | ms | | Turn-Off Time | | - | 10 | - | ms | The HIGHWAY09A is an 8-bit IC manufactured by
Here is a brief investigative report explaining the likely causes and how to proceed. Output (Load) Parameters | Parameter | Condition |
| Symptom | Datasheet Section to Consult | |------------------------------|---------------------------------------------| | IC runs hot | Thermal characteristics & layout guidelines| | No communication on bus | Timing diagrams (t_PROP, t_BUS) | | False triggering on TX/RX | Logic input threshold voltages (V_IL, V_IH) | | Intermittent failure at 85°C | Temperature derating curves |