Highway 09 Ic Datasheet May 2026

Internally, the Highway 09 integrates the following blocks:

A simplified internal diagram would show the input feeding the pass transistor, controlled by the error amplifier comparing a fraction of the output to the 1.25V reference. The current limit and thermal sensors directly pull the error amplifier output low during fault conditions.

The third pin—Adjust (Adj)—is what separates this IC from the pack. The datasheet reveals that the regulator maintains a constant 1.25V reference between the Output and Adjust pins. This clever architecture means the "ground" reference for the chip isn't actually Earth ground; it "floats" relative

The HIGHWAY09 (and its variant HIGHWAY09A) is a specialized controller integrated circuit primarily used in induction cookers and similar high-power domestic appliances. It typically comes in a DIP-16 or DIP-20 package. Technical Specifications

Function: Master controller / PWM driver for induction cooker power stages. Package Options: DIP-16 (Standard for HIGHWAY09A). DIP-20 (Alternative variant). Key Features: Integrated protection against voltage spikes. High-frequency switching capability for signal integrity.

Optimized for harsh, high-temperature environments (up to 105°C in similar power components). Common Applications: Midea and other major induction cooker brands. SMPS (Switch Mode Power Supply) modules. Pin Configuration (General Guide)

While specific pinouts can vary by manufacturer, these ICs typically include:

VCC/GND: Power supply pins (standard operating voltages are often between 5V and 18V for controller logic). PWM Output: Controls the IGBT or power MOSFET switching.

Feedback (FB): Monitors output power or temperature for regulation.

Protection/Error: Interfacing with sensors to shut down during overheating or overvoltage.

💡 Pro Tip: If you are replacing a "Highway 09" chip in a kitchen appliance, check the PCB markings first. These chips are often proprietary or pre-programmed for specific motherboard models like those from Midea.

To help you find the exact wiring diagram, could you tell me: The pin count of your specific chip (16 or 20)? The brand of the appliance you're repairing?

If you need a circuit diagram for a specific section (like the power supply or the induction coil)? 1PCS HIGHWAY09A HIGHWAY09 HIGHWAY08 ... - AliExpress highway 09 ic datasheet

The Highway09A (often referred to as Highway 09) is a multi-functional integrated circuit most commonly identified as a specialized power management and signal control driver. While it is frequently found in high-power consumer appliances like induction cookers, it also serves broader roles in automotive and industrial sectors as a low-dropout (LDO) voltage regulator or an 8-bit microcontroller. Core Specifications

Based on its various functional roles, the Highway09A typically features:

Package Type: PDIP16 (16-pin Plastic Dual In-line Package) or 20-pin DIP versions. Operating Voltage: Wide input range from 4.5V to 40V.

Regulated Output: Standard 5V output with a maximum current of 1A.

Current Efficiency: Extremely low quiescent current of approximately 10μA.

Integrated Protections: Built-in safeguards against over-current, over-temperature, and reverse-battery conditions. Pin Configuration (PDIP16)

Common pin assignments for the Highway09A signal control variant include: VCC / VM: Main power supply for the IC or motor voltage. GND: Common ground reference. IN1–IN4: Signal input pins for multi-channel processing.

OUT1–OUT4: Output pins for delivering processed control signals to external components.

EN / CTRL: Enable and Control pins to manage operational modes and power sequencing. Primary Applications

Consumer Electronics: Specifically designed for induction cookers to manage complex switching for high-power heating elements and monitor current flow through transformer windings.

Automotive Systems: Used in Electronic Control Units (ECUs), instrument clusters, and motor control for robotic arms or wheels.

Industrial Automation: Employed in machinery control systems where high stability and low power consumption are required. Comparison Table: Highway Series Variants Part Number Primary Function Typical Package HIGHWAY09A Voltage Regulator / Induction Driver PDIP16 / DIP20 HIGHWAY08 Motor/Signal Control DIP16 / DIP20 HIGHWAY13A Power Sequencing / Induction Driver Internally, the Highway 09 integrates the following blocks:

When sourcing replacements from retailers like AliExpress or utsource, ensure the pinout matches your specific board, as functional logic can vary between the 16-pin and 20-pin versions. HIGHWAY 09 20 PIN IC PIN DIAGRAM datasheets

Highway 09 (often cataloged as HIGHWAY09A ) is a versatile integrated circuit manufactured by

. It primarily serves as a multi-channel signal processing and control IC, though it is most frequently identified as a critical microcontroller or control chip for induction cookers motor control applications. AliExpress Functional Overview and Core Applications

The Highway09A is designed to handle high-frequency switching and precise signal management. Its main roles include: Induction Cooker Control

: It decodes user inputs and translates them into gate signals for IGBTs (Insulated Gate Bipolar Transistors), managing the Pulse Width Modulation (PWM) signals that regulate heating power. Motor Driver

: The chip enables control over motor speed and direction, often featuring overcurrent protection for safety in robotics and home automation. Signal Processing

: In industrial and automotive contexts, it manages multiple input/output signals across communication and embedded systems. AliExpress Technical Specifications According to technical summaries from Jotrin Electronics , the IC features the following parameters: Ovaga Technologies Package Type : Standard 16-pin Plastic Dual In-line Package ( Input Voltage Range : Wide range typically from 4.5V to 40V Regulated Output : Often provides a stable output with a maximum current of Power Consumption

: Optimized for low-power operation, with a quiescent current as low as Protection Mechanisms

: Integrated safeguards against over-current, over-temperature, and reverse-battery conditions. Pin Configuration (PDIP16)

The Highway09A utilizes a 16-pin layout to manage its various control and power functions: : Power supply and ground reference pins. IN1–IN4 / OUT1–OUT4

: Multi-channel signal inputs and outputs for processing sensor data or controlling external devices. Enable (EN)

: Activates or deactivates the IC's primary functions to prevent accidental power-on. Control (CTRL) : Manages operational modes and specific signal tasks. Equivalents and Alternatives A simplified internal diagram would show the input

If a direct Highway09A replacement is unavailable, engineers often look to chips with similar signal processing or control capabilities:

: A quad comparator used for similar signal processing tasks. : A PWM controller common in power regulation.

: A dual H-bridge driver often used as an alternative for motor control. for a specific application like an induction cooker motor driver HIGHWAY09A Holtek Integrated Circuits (ICs) - Jotrin

Note: Absolute Maximum Ratings should never be exceeded, even momentarily.

| Parameter | Symbol | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | Input Voltage | V_IN | - | - | 30 | V | | Load Dump Protection | V_IN_surge | - | - | 40 | V | | Output Current | I_OUT | 0 | 1.2 | 1.5 | A | | Current Sense Voltage | V_SENSE | 0.095 | 0.100 | 0.105 | V | | Quiescent Current (no load) | I_Q | 1 | 2 | 5 | mA | | Shutdown Current (VIN<UVLO) | I_SHDN | - | 10 | 50 | µA | | Thermal Shutdown Temp | T_SD | 140 | 150 | 160 | °C | | Thermal Hysteresis | T_HYS | - | 15 | - | °C |

Critical Design Formula: The output current is set by the sense resistor (R_sense) using the internal voltage reference:

[ I_OUT = \fracV_SENSER_SENSE = \frac0.1VR_SENSE ]

Example: To achieve 700mA LED current: ( R_SENSE = 0.1V / 0.7A = 0.142\Omega ) → Use a standard 0.15Ω, 1W resistor.

When evaluating the Highway 09, consider these common alternatives:

| IC Part | Input Max | Current | Dropout | Key Difference | |---------|-----------|---------|---------|----------------| | Highway 09 | 40V | 1.5A | 300mV | Good balance; rugged | | LM7805 | 35V | 1.0A | 2V | Older, higher dropout | | LM317 | 40V | 1.5A | 1.7V | Adjustable only | | LT1086 | 30V | 1.5A | 1.3V | Lower dropout but costly |

Verdict: The Highway 09 offers modern LDO performance at a mid-range price point.