Highway09a Ic Datasheet [upd] Jun 2026

The IC utilizes a proprietary communication protocol.

Delivers a highly accurate internal bandgap voltage to stabilize external comparator networks.

| Register | Address | Function | |----------|---------|----------| | Input Port 0 | 0x00 | Read P00–P07 state | | Input Port 1 | 0x01 | Read P10–P17 state | | Output Port 0 | 0x02 | Set P00–P07 level | | Output Port 1 | 0x03 | Set P10–P17 level | | Configuration 0 | 0x04 | 1 = input, 0 = output | | Configuration 1 | 0x05 | Same for second bank | | LED Mode 0 | 0x12 | Enable dimming (per pin) | | Current Control | 0x1C–0x1F | Set global/sink current |

If running near the 1A limit at high input voltages, ensure adequate airflow or a small heatsink, as PDIP packages have limited thermal dissipation. highway09a ic datasheet

Output connections that drive the motor directly.

Optimized for low power consumption and high thermal resistance, often allowing for compact PCB layouts without massive heatsinking requirements.

If you’ve ever disassembled an appliance like an IKEA induction hob, you might have encountered a small, 16-pin chip labeled . While it might seem obscure, this versatile integrated circuit (IC) is a workhorse in various signal processing and control applications. What is the HIGHWAY09A? The IC utilizes a proprietary communication protocol

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Outputs designated for direct low-side or high-side driving, providing the necessary sink and source currents for external power stages. 🚀 Key Functional Features

In a typical application, the Highway09A is deployed in a daisy-chain configuration: Output connections that drive the motor directly

: Integrated over-current, over-temperature, and reverse-battery protection. It also features Human Body Model (HBM) ESD safety margins. HIGHWAY09A Pin Configuration (PDIP16)

Deployed in small-scale robotics, precise stepper/servo motor drive paths, and automated signal management nodes. 🛠️ Testing, Verification, and Procurement

| 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 |

: Includes specifications for maximum operating temperature and thermal resistance, critical for designing effective PCB layouts and heatsinks. Common Applications

Standard 5V output with a maximum current of 1A . Power Consumption: Ultra-low quiescent current (~10μA).