Overview
The TDA3629T/N2,118 is a light position controller integrated circuit produced by NXP USA Inc. This monolithic IC is designed to adjust the elevation of the light beam in automotive headlamps based on the settings defined by the car driver using a potentiometer on the dashboard. It is part of the TDA3629 series, known for its reliability and precision in automotive lighting systems.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VP) | Under voltage threshold | 6 | - | 8 | V |
| Supply Voltage (VP) | Over voltage threshold at 25°C | 18 | - | 22 | V |
| Supply Voltage (VP) | Over voltage threshold at -40 to +105°C | 17.5 | - | 22.8 | V |
| Supply Current (IP(ss)) | Steady state | 0 | - | 6 | mA |
| Supply Current (IP) | Motor active | - | - | 80 | mA |
| Output Voltage (Vm) | - | - | - | 12.3 | V |
| Output Current (Im) | VP ≥ 12.3 V | - | - | 670 | mA |
| Motor Switch On Current Level (ISET) | VP = 12 V | 6 | 9 | 12 | µA |
| Package | - | - | - | SO16 | - |
| Body Dimensions | - | - | - | 9.9 mm x 3.9 mm x 1.35 mm | - |
| Lead Pitch | - | - | - | 1.27 mm | - |
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/N2,118 is primarily used in automotive systems to control the elevation of headlamp light beams. It is integrated into the vehicle's lighting system to ensure the light beam is adjusted according to the driver's settings, typically using a potentiometer on the dashboard.
Q & A
- What is the primary function of the TDA3629T/N2,118?
The primary function is to control the elevation of the light beam in automotive headlamps. - What type of package does the TDA3629T/N2,118 come in?
The TDA3629T/N2,118 comes in a SO16 package, which is a plastic small outline package with 16 leads. - What are the dimensions of the SO16 package?
The dimensions are 9.9 mm x 3.9 mm x 1.35 mm. - What is the lead pitch of the SO16 package?
The lead pitch is 1.27 mm. - What are some key features of the TDA3629T/N2,118?
Key features include low positional error, low noise sensitivity, low supply current, thermal protection, and broken wire and short-circuit indication. - How is the hysteresis level set in the TDA3629T/N2,118?
The hysteresis level is set externally using resistors. - 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. - What is the output current capability of the TDA3629T/N2,118?
The output current capability is up to 670 mA when VP ≥ 12.3 V. - Is the TDA3629T/N2,118 thermally protected?
Yes, the device is thermally protected. - How does the TDA3629T/N2,118 indicate a broken wire or short circuit?
It indicates a broken wire or short circuit on the SET input.
