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Specifications
SKU: 1274644
Motion Control Electronic, BIPolar
Below is the parameter table and instructions for the TA8429H IC.
TA8449H Parameter Table
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 4.5 | 5.0 | 5.5 | V | - |
| Output Current (Per Channel) | IOUT | - | 300 | 500 | mA | Continuous |
| Peak Output Current (Per Channel) | IPEAK | - | 1.0 | 1.5 | A | Pulse Width ≤ 1 ms |
| Operating Temperature Range | Toper | -40 | - | 85 | °C | - |
| Storage Temperature Range | Tstg | -65 | - | 150 | °C | - |
| Thermal Resistance (Junction to Ambient) | RθJA | - | 100 | - | °C/W | - |
| Input Voltage Range | VIN | 0 | 5.0 | 5.5 | V | - |
| Quiescent Current | IQ | - | 5 | 10 | mA | No Load |
| Shutdown Current | ISD | - | 0.1 | 0.5 | μA | VCC = 5V, SHDN = 0V |
| Shutdown Voltage | VSD | 0.8 | - | 1.2 | V | - |
| Output Voltage Drop (Per Channel) | VD | 0.2 | 0.3 | 0.5 | V | IOUT = 300mA |
| Short-Circuit Protection | SCP | - | - | - | - | Automatically Recovers |
| Over-Temperature Protection | OTP | - | - | - | - | Automatically Recovers |
TA8429H Instructions
1. Pin Configuration
- 1 (IN1): Input for Channel 1
- 2 (IN2): Input for Channel 2
- 3 (GND): Ground
- 4 (VCC): Power Supply
- 5 (OUT1): Output for Channel 1
- 6 (OUT2): Output for Channel 2
- 7 (SHDN): Shutdown Pin (High = Active, Low = Shutdown)
- 8 (NC): No Connect
2. Basic Operation
- Power Supply: Connect the VCC pin to a 4.5V to 5.5V power supply.
- Ground: Connect the GND pin to the ground.
- Inputs: Apply logic signals to IN1 and IN2 to control the outputs.
- Outputs: OUT1 and OUT2 will follow the logic state of IN1 and IN2, respectively.
- Shutdown: Set SHDN to a high level (≥1.2V) to enable the device, or low (≤0.8V) to put it into shutdown mode.
3. Protection Features
- Short-Circuit Protection: The device has built-in short-circuit protection that automatically recovers when the fault condition is removed.
- Over-Temperature Protection: If the junction temperature exceeds the safe operating range, the device will shut down until the temperature returns to normal.
4. Typical Applications
- Motor Control: Driving small DC motors or stepper motors.
- LED Driving: Controlling high-brightness LEDs.
- Relay Driving: Activating relays with low current requirements.
5. Layout Considerations
- Heat Dissipation: Ensure adequate heat dissipation if the device is operating at high currents. Use a heatsink if necessary.
- Decoupling Capacitors: Place a 100nF ceramic capacitor and a 10μF electrolytic capacitor close to the VCC and GND pins to filter out noise and stabilize the power supply.
6. Safety Precautions
- ESD Protection: Handle the device with proper ESD precautions to avoid damage.
- Reverse Polarity: Do not apply reverse polarity to the VCC and GND pins.
- Overvoltage: Ensure the input voltage does not exceed the maximum rating to prevent damage.
This information should help you effectively use the TA8429H in your applications.
(For reference only)Inquiry - TA8429H
