Overview
The TDA3629T/YM,118 is a light position controller integrated circuit designed by NXP USA Inc. for automotive applications. This monolithic IC is intended to adjust the elevation of the light beam in a vehicle's headlight based on the driver's settings, typically using a potentiometer on the dashboard. It is part of the TDA3629 family, which includes various package options such as DIP8 and SO16.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VP) | Tamb = 25 °C | 6 | - | 22 | V |
| Supply Current (IP(ss)) | Steady state | - | - | 6 | mA |
| Supply Current (IP) | Motor active | - | - | 80 | mA |
| Output Voltage (Vm) | VP ≥ 12.3 V, Im < 700 mA | - | - | 12 | V |
| Output Current (Im) | VP ≥ 12.3 V | - | 670 | - | mA |
| Motor Switch On Current Level (ISET) | VP = 12 V | 6 | 9 | 12 | µA |
| Thermal Resistance (Rth(j-a)) | In free air | - | - | 105 | K/W |
Key Features
- Low positional error
- Low noise sensitivity due to hysteresis
- Low supply current
- Thermally protected
- Broken wire and short-circuit indication on SET input
- Brake function by short-circuiting the motor
- Hysteresis level set externally
Applications
The TDA3629T/YM,118 is primarily used in automotive systems to control the elevation of headlight beams. It is designed to work in conjunction with a potentiometer on the vehicle's dashboard, allowing the driver to adjust the light beam's position. This IC is suitable for various automotive lighting systems where precise and reliable control over the light beam's elevation is necessary.
Q & A
- What is the primary function of the TDA3629T/YM,118? The primary function is to control the elevation of the headlight beam in a vehicle.
- What package options are available for the TDA3629? The TDA3629 is available in DIP8 and SO16 packages.
- What is the typical supply current when the motor is active? The typical supply current when the motor is active is up to 80 mA.
- How is the hysteresis level set? The hysteresis level is set externally using resistors.
- What kind of protection does the TDA3629T/YM,118 offer? It offers thermal protection, broken wire indication, and short-circuit protection.
- What is the purpose of the brake function? The brake function is achieved by short-circuiting the motor.
- What is the recommended load resistance? The recommended load resistance is 10 Ω or more.
- How does the IC handle voltage transients? The IC is designed to handle voltage transients with specific protection mechanisms.
- What are the typical operating temperatures for the TDA3629T/YM,118? The typical operating temperatures range from -40 °C to +105 °C.
- Is the TDA3629T/YM,118 still in production? No, the TDA3629T/YM,118 is no longer manufactured but may still be available from distributors or as obsolete stock.
