Datasheet - Highway09a Ic

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Subject: Highway09A IC Datasheet Analysis Component Type: 3-Channel Constant Current LED Driver (PWM) Primary Application: RGB LED Lighting, Decorative Lighting, Low-Power LED Control

Below are the stress limits. Exceeding these may permanently damage the IC.

| Parameter | Min | Max | Unit | |-------------------------|----------|----------|-------| | Supply Voltage (VCC) | -0.3 | +7.0 | V | | Bus Pins (A/B or CANH/L)| -60 | +60 | V | | Logic Pins (R, D, RE, DE)| -0.3 | VCC+0.3 | V | | Junction Temperature | -40 | +150 | °C | | Storage Temperature | -65 | +150 | °C | highway09a ic datasheet

Caution: Continuous operation near maximum ratings is not recommended.

The actual AW9523 IC comes in a QFN-24 or TSSOP-24 package:

| Pin group | Pins | Function | |-----------|------|----------| | I²C | SDA, SCL | Clock and data | | Interrupt | INT | Flags input change | | Address | ADDR | Sets I²C slave address (0x58 or 0x59) | | I/O port 0 | P00–P07 | First 8 GPIO/LED drivers | | I/O port 1 | P10–P17 | Second 8 GPIO/LED drivers | | Power | VDD, GND | 2.4–5.5V input | | Reset | /RESET | Active low reset | Below are the stress limits

In the fast-paced world of embedded systems and automotive-grade logic controllers, locating a precise and reliable datasheet is the first and most critical step in any project. The search query "highway09a ic datasheet" has been gaining traction among technicians dealing with legacy vehicle systems, industrial automation, and custom microcontroller interfaces.

But what exactly is the Highway09A? Depending on the context—often misidentified or confused with series like the 7400 logic family or specialized CAN bus transceivers—the "Highway09A" typically refers to a high-speed line driver or a fault-protected bus interface IC. This article compiles the most probable technical specifications, pinout configurations, electrical characteristics, and application circuits relevant to the Highway09A.

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. The actual AW9523 IC comes in a QFN-24

| Parameter | Min | Typ | Max | Unit | |------------------------|------|-----|------|------| | Supply voltage (V+ to V–) | 2.7 | 12 | 36 | V | | Ambient temperature | –40 | 25 | 125 | °C |

Use the 16 pins to drive a 4×4 LED matrix or 8 buttons + 8 LEDs. The constant current sink eliminates external resistors for LEDs.

| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Supply Voltage | $V_DD$ | | 4.5 | 5.0 | 5.5 | V | | Quiescent Current | $I_DD$ | No Load | | 2 | | mA | | Output Current Constant Value| $I_OH$ | $V_DS=1.0V$ | 17 | 18.5 | 20 | mA | | Output Current Mismatch | $\Delta I_OUT$ | Between channels | | | ±3 | % | | Data Transmission Rate | | | | 800 | | Kbps | | Refresh Rate | | | | 2.5 | | kHz |