| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 500 kHz |
| Number of Pins | 8 Pin |
| Case/Package | WSON-8 |
| Number of Outputs | 1 Output |
| Output Voltage | 0.2V ~ 42V |
| Output Current | 1 A |
| Supply Current | 3500 mA |
| Quiescent Current | 3.20 mA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 250 kHz |
| Thermal Shutdown | Yes |
| Topology | Buck |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 4.5V ~ 42V |
| Supply Voltage (Max) | 42 V |
| Supply Voltage (Min) | 4.5 V |
| Input Voltage | 4.5V ~ 42V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The LM3414 and LM3414HV are 1-A 60-W(1) common anode-capable constant current buck LED drivers. They are suitable for driving single string of 3-W HBLED with up to 96% efficiency. They accept input voltages from 4.5 VDC to 65 VDC and deliver up to 1-A average LED current with ±3% accuracy. The integrated low-side N-channel power MOSFET and current sensing element realize simple and low component count circuitry, as no bootstrapping capacitor and external current-sensing resistor are required. An external small-signal resistor to ground provides very fine LED current adjustment, analog dimming, and thermal fold-back functions.
●Constant switching frequency operation eases EMI. No external loop compensation network is needed. The proprietary Pulse-Level-Modulation (PLM) control method benefits in high conversion efficiency and true average LED current regulation. Fast response time realizes fine LED current pulse fulfilling the 240 Hz 256-step dimming resolution requirement for general lighting.
●The LM3414 and LM3414HV are available in SOIC-8 and 3 mm × 3 mm WSON-8 packages.
TI
60W Common Anode-Capable Constant Current Buck LED Driver Requires No External Current Sensing Resistor
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1A 60W* Common Anode Capable Constant Current Buck LED Driver Requires No External Current Sensing Resistor
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