Note: If the Highway09A is a custom ASIC or a rare OEM part (e.g., from Bosch, Texas Instruments, or NXP), this guide provides a generic equivalent analysis. Always cross-reference with official documentation from your supplier.
: Used in ECUs, instrument clusters, and power management due to its high stability and durability .
If you are looking to purchase these or similar components, retailers like AliExpress often carry them in bulk for DIY electronics or repair projects. 10pcs/lot SN74LS09N 74LS09 DIP14 new - AliExpress 502
– Many small ICs from Alibaba/eBay have markings like HIGHWAY09A that are not official datasheet part numbers. These are often remarketed op-amps, regulators, or driver ICs. highway09a ic datasheet
Couples to a current transformer or shunt resistor to track instantaneous current waveforms across the primary induction coil. Pin 14 ( VCCcap V sub cap C cap C end-sub VDDcap V sub cap D cap D end-sub
While specific pin assignments can vary by exact manufacturer implementation (like Holtek), a typical HIGHWAY09A configuration focuses on regulation and protection:
: Approximately 10μA , making it efficient for low-power standby modes. Note: If the Highway09A is a custom ASIC
: Authentic chips for repairs are commonly stocked on AliExpress . HIGHWAY09A Holtek | | Xecor
HIGHWAY09A is a versatile 16-pin integrated circuit (IC) primarily utilized as a low-dropout voltage regulator multi-channel signal processor . Frequently manufactured by
, look for line surges or a failure in the voltage divider resistors. 2. Excessive Thermal Discoloration on the PCB If you are looking to purchase these or
: Overvoltage protection (OVP) pins to safeguard downstream components. Common Applications
As this IC continues to appear in appliances manufactured over the past decade, the practical knowledge compiled from field experience serves as a valuable resource for those seeking to understand and work with this component.