LM3402是TI公司的一款LED照明-照明产品，LM3402是用于高功率 LED 驱动器的 0.5A 恒流降压稳压器，本页介绍了LM3402的产品说明、应用、特性等，并给出了与LM3402相关的TI元器件型号供参考。
LM3402 - 用于高功率 LED 驱动器的 0.5A 恒流降压稳压器 - LED照明-照明 - LED驱动器 - TI公司（Texas Instruments，德州仪器）
- Integrated 0.5-A N-channel MOSFET
- VIN Range from 6 V to 42 V (LM3402)
- VIN Range from 6 V to 75 V (LM3402HV)
- 500 mA Output Current Over Temperature
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- Separate PWM Dimming and Low Power Shutdown
- Supports All Ceramic-Output Capacitors and Capacitor-Less Outputs
- Thermal Shutdown Protection
- VSSOP, SO PowerPAD™ Packages
- LED Drivers
- Constant Current Source
- Automotive Lighting
- General Illumination
- Industrial Lighting
The LM3402/HV are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 735 mA (typical) for step-down (Buck) regulators. Hysteretic control with controlled ON-time coupled with an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series - parallel connected arrays of LEDs of varying number and type, LED dimming by pulse width modulation (PWM), broken/open LED protection, low-power shutdown and thermal shutdown complete the feature set.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LM3402/HV | VSSOP (8) | 3.00 mm × 3.00 mm |
| HSOP (8) | 4.89 mm × 3.90 mm |
