Highway 09 Ic Datasheet

Switch node connection for the internal high-side and low-side MOSFETs.

Place the input ceramic capacitors as close as physically possible to the VIN and GND pins. This minimizes high-frequency di/dt loops. highway 09 ic datasheet

To achieve 700mA LED current: ( R_SENSE = 0.1V / 0.7A = 0.142\Omega ) → Use a standard 0.15Ω, 1W resistor. Switch node connection for the internal high-side and

). Used for biased termination networks to maintain bus stability during idle periods. To achieve 700mA LED current: ( R_SENSE = 0

The classic deployment of the Highway 09 IC is in an offline isolated Flyback converter topology. Recommended Bill of Materials (BOM) Guidance

: It directly reads signals from touch buttons, controls LED displays via I2C, and generates the precise Pulse Width Modulation (PWM) signals needed to switch the main IGBT at high frequencies (typically 20-50kHz). It also monitors AC mains voltage (Pin 16), ensures the resonant circuit is synchronized (Pins 4 and 15), and constantly checks for dangerous over-current or surge conditions (Pin 1) to turn off the IGBT if needed.

For further reading, look for application notes on "Automotive Power Supply Design Using Linear Regulators" or "Thermal Calculations for LDOs."