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Highway09a Ic Datasheet Extra Quality

The HIGHWAY09A is a specialized integrated circuit (IC) primarily utilized in power management and control systems, most notably within induction cookers. Often manufactured by companies like Holtek, it is typically housed in a PDIP16 (16-pin Plastic Dual In-line Package), making it a versatile choice for both industrial automation and consumer electronics. Key Functional Specifications

The HIGHWAY09A serves as a multi-channel signal processing and control IC. It is designed to handle signals from various sensors and deliver processed outputs to control external systems, such as the gate signals for IGBTs (Insulated Gate Bipolar Transistors) in induction heating applications. Specification Details Package Type PDIP16 (16-Pin Dual In-line Package) Operating Voltage Typically 2.4V to 5.5V (some variants support 4.5V to 40V) Current Output Up to 1A regulated output (specific to regulator variants) Frequency Range 32kHz to 8MHz Quiescent Current Extremely low, approximately 10μA Protection Features

Overcurrent, over-temperature, and reverse-battery protection Pin Configuration and Roles

The 16-pin layout provides power, ground, and dedicated control interfaces. According to the Highway09A IC Circuit Overview, the pins are categorized as follows:

VCC & GND: Power supply and common ground pins for stable operation.

IN1–IN4: Multi-channel signal inputs for processing data from sensors.

OUT1–OUT4: Output pins that deliver control signals to external components.

CTRL & EN: Control and enable pins used to manage operational modes and activate the IC.

Additional Pins: Depending on the specific application (e.g., resonance mode switching), pins may be dedicated to Current Sense, timing components (RT/CT), and Soft Start functionality. Core Applications

The HIGHWAY09A is highly regarded for its stability in demanding environments.

Induction Cookers: It serves as a central controller for Midea and other major brands, managing PWM (Pulse Width Modulation) signals to ensure efficient heating. highway09a ic datasheet

Automotive Systems: Used in electronic control units (ECUs), instrument clusters, and motor control circuits.

Industrial Automation: Employed for precise signal control in robotics and automated production lines.

Consumer Electronics: Found in home automation products like motorized blinds and gates. Design and Integration Tips

When integrating the HIGHWAY09A, engineers should prioritize the following: HIGHWAY09A Holtek | | Xecor

The HIGHWAY09A is a versatile 16-pin integrated circuit (IC) primarily used in induction cookers (like those from IKEA) and automotive systems. Depending on the specific application, it functions as a microcontroller with LCD driving capabilities or as a high-performance signal processor. Key Specifications & Features

Package Type: Standard PDIP16 (Plastic Dual In-line Package). Operating Voltage: Typically ranges from 2.4V to 5.5V. Applications:

Induction Cookers: Provides precise control over heating zones and is often found in units like the IKEA 2kW hob.

Automotive: Used in ECUs, instrument clusters, and power management due to its high stability and durability.

Industrial: Signal processing and control for automation systems. Functional Features:

Built-in LCD driver (up to 32 segments) and touch key support (up to 16 keys). The HIGHWAY09A is a specialized integrated circuit (IC)

Includes an internal oscillator, watchdog timer, and power-saving modes.

Built-in protection against over-current, over-temperature, and over-voltage. Datasheet Resources

While full manufacturer PDFs are sometimes hard to find directly, you can access detailed overviews and pinout diagrams through these distributors: Detailed Pinout & Circuit Overview: Available on Scribd.

Technical Product Page: View attributes and documentation at Jotrin Electronics or Utsource.

Replacement Parts: Authentic chips for repairs are commonly stocked on AliExpress. HIGHWAY09A Holtek | | Xecor

This is a tricky request because “highway09a ic” does not match any standard or major commercial IC (from brands like Texas Instruments, Analog Devices, Maxim, NXP, STMicroelectronics, etc.).

It is highly likely one of the following:

  1. A misremembered or misread part number – Common misreads of similar-looking codes:

    • LM2904 (dual op-amp)
    • LM339A (quad comparator)
    • HA17393 (Hitachi dual comparator)
    • MC34063A (DC-DC converter)
    • Highway is almost certainly not an IC brand; it might be a PCB module or a Chinese generic marking.

  2. A Chinese/generic IC with a non-standard or in-house marking – 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.

  3. A mis-labeled automotive or industrial module – Sometimes “Highway” appears in product names (e.g., “Highway 09A data acquisition board”), not a bare IC. A misremembered or misread part number – Common

C. Breathing LED effect

Write 0x00 to LED Mode 0 to enable PWM, then set fade-in/out registers (0x20–0x2F). The hardware automates the breath waveform.

Microcontroller to Highway09A to RS-485 Bus

            +5V
             |
            ┌┴┐
            │ │ 0.1µF
            └┬┘
             |           Highway09A
    MCU Tx --|-------------|D (pin4)
    MCU Rx --|---------|R (pin1)
    MCU Dir--|--┬------|RE (pin2)
               └------|DE (pin3)
                       |GND (pin5)----- GND
                       |A (pin6) ------+--- A line to bus
                       |B (pin7) ------+--- B line to bus
                    +5V|VCC (pin8)----+5V

Termination: Add 120Ω resistor across A and B at both ends of long cable.

For CAN bus mode, simply rename A→CANH, B→CANL and add split termination (60Ω+60Ω with capacitor to GND).

Deep Dive: The Highway09a IC (AW9523B) – I²C GPIO and LED Driver

7. Electrical Characteristics (V+ = 5V, V– = 0V, TA = 25°C, unless noted)

| Symbol | Parameter | Conditions | Min | Typ | Max | Unit | |--------|--------------------------|--------------------------|------|-----|------|------| | VOS | Input offset voltage | | –0.5 | ±0.1| 0.5 | mV | | IB | Input bias current | | – | 10 | 50 | pA | | CMRR | Common-mode rejection | VCM = 0V to 5V | 80 | 95 | – | dB | | PSRR | Power supply rejection | VS = 2.7V to 36V | 85 | 100 | – | dB | | AOL | Open-loop gain | RL = 2 kΩ | 100 | 120 | – | dB | | ISC | Output short-circuit current | Sinking/sourcing | ±30 | ±50 | – | mA | | SR | Slew rate | G = +1, 2V step | – | 5 | – | V/µs | | GBW | Gain-bandwidth product | CL = 20 pF | – | 10 | – | MHz | | VOH | Output voltage high | RL = 2 kΩ to V–/2 | 4.95 | 4.99| – | V | | VOL | Output voltage low | RL = 2 kΩ to V+/2 | – | 0.01| 0.05 | V |

5. Functional Truth Table (for RS-485 mode)

Understanding the enable logic prevents common bus contention issues.

| DE | RE | D | A – B Output | Receiver (R Pin) | |----|-----|-----|----------------|------------------| | 1 | 0 | 1 | Logic 1 (A > B)| Idle (disabled) | | 1 | 0 | 0 | Logic 0 (A < B)| Idle (disabled) | | 0 | 1 | X | High-Z (tri-state) | Differential A-B > -200mV → R = 1
A-B < -200mV → R = 0
Open/shorted bus → R = 1 (fail-safe) |

Important: For half-duplex 2-wire networks (RS-485), tie RE and DE together. Connect to MCU pin for TX/RX switching.

1. Check the IC physically again

Look for:

4. Electrical Characteristics (Typical at 25°C, VCC = 5V)

These values help determine compatibility with your MCU (e.g., Arduino, STM32, PIC).

| Symbol | Parameter | Condition | Min | Typ | Max | Unit | |--------|----------------------|-----------------------|------|-----|------|------| | VIH | Logic Input High (D,DE) | | 2.0 | - | VCC | V | | VIL | Logic Input Low (D,DE) | | 0 | - | 0.8 | V | | VOH | Receiver Output High (R)| Iout = -4mA | 3.5 | 4.5 | - | V | | VOL | Receiver Output Low (R) | Iout = 4mA | - | 0.2 | 0.4 | V | | VOD | Differential Driver Out | RL = 54Ω (RS-485) | 1.5 | 2.5 | 3.0 | V | | IIN | Bus Input Current | Vbus = ±60V (disabled)| - | 10 | 100 | μA | | ICC | Supply Current (active)| No load, DE=1 | - | 1.5 | 3.0 | mA |

For CAN mode: Differential output voltage into 60Ω load is typically 1.5V to 3.0V.

12. Troubleshooting & Diagnostic Flags