LM3404HV是TI公司的一款LED照明-照明产品，LM3404HV是用于高功率 LED 驱动器的 1.0A 恒流降压稳压器，本页介绍了LM3404HV的产品说明、应用、特性等，并给出了与LM3404HV相关的TI元器件型号供参考。
LM3404HV - 用于高功率 LED 驱动器的 1.0A 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 1-A MOSFET
- VIN Range 6 V to 42 V (LM3404)
- VIN Range 6 V to 75 V (LM3404HV)
- 1.2-A Output Current Overtemperature
- 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
- SOIC-8 Package, SO PowerPAD™-8 Package
- LED Drivers
- Constant Current Sources
- Automotive Lighting
- General Illumination
- Industrial Lighting
The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (typical) for step-down (Buck) regulators. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown, and thermal shutdown.
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| LM3404, LM3404HV | SOIC (8) | 3.91 mm × 4.90 mm |
| SO PowerPAD (8) | 3.90 mm × 4.89 mm |
