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LM3429MHX
+Lista de MateriaisLED Lighting Driver ICs
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FabricanteTexas Instruments
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Peça do Fabricante #LM3429MHX
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Especificações
| Atributo | Valor |
Visão Geral
Description
Key features of the LM3429MHX include analog and PWM dimming capabilities, which enable precise brightness control, and thermal foldback protection to prevent overheating. It also supports high switching frequencies, facilitating the use of smaller inductors and capacitors, which can lead to more compact designs.
The LM3429MHX is packaged in a thermally enhanced HTSSOP package, which aids in heat dissipation. It includes features for fault protection, like overvoltage, undervoltage, and overcurrent protection, ensuring reliable operation under various conditions. Overall, it is a robust solution for driving LED arrays with high efficiency and reliability.
Equivalent
Features
1. Wide Input Voltage Range: It operates from a broad input voltage range, typically from 4.5V to 75V, providing excellent flexibility for various LED configurations.
2. High Efficiency: It supports high-efficiency operations due to its switching regulator technology, which reduces power losses.
3. Adjustable Output Current: The driver allows for easy adjustment of the LED current, facilitating precise control over brightness and power consumption.
4. PWM Dimming: The LM3429MHX supports PWM dimming, enabling smooth and accurate brightness control.
5. Fault Protection: It includes built-in protection features such as over-voltage, over-current, and thermal shutdown to ensure safe operation.
6. Versatile Topologies: The device supports various topologies including boost, buck-boost, and SEPIC, making it adaptable to different design requirements.
These features make the LM3429MHX suitable for a wide range of LED lighting applications, from automotive to architectural lighting.
Pinout
Here is a brief overview of its pin functions:
1. VIN (Pin 1): Input supply voltage.
2. CSN (Pin 2): Negative current sense input.
3. CSP (Pin 3): Positive current sense input.
4. COMP (Pin 4): Compensation for the control loop.
5. Rset (Pin 5): Sets the switching frequency.
6. EN (Pin 6): Enable pin to turn the driver on or off.
7. UVLO (Pin 7): Undervoltage lockout set pin.
8. SW (Pin 8): Switch output.
9. GND (Pin 9): Ground connection.
10. IS (Pin 10): Current sense resistor connection.
This IC is versatile, allowing for buck, boost, and buck-boost configurations, providing flexibility for different LED driving applications.