LM3414HV Series

65-V 60-W common Anode Capable constant current buck LED driver Requires No Ext. current sensing Res

Catalog

65-V 60-W common Anode Capable constant current buck LED driver Requires No Ext. current sensing Res

Part	Applications	Type	Mounting Type	Grade	Dimming	Topology	Frequency	Number of Outputs	Voltage - Supply (Min) [Min]	Package / Case [y]	Package / Case [x]	Package / Case	Supplier Device Package	Voltage - Supply (Max) [Max]	Current - Output / Channel [custom]	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input [Min]	Voltage - Input [Max]	Supplied Contents	Utilized IC / Part	Outputs and Type
Texas Instruments LM3414HVMRX/NOPB	Lighting	DC DC Regulator	Surface Mount	Automotive	Analog PWM	Step-Down (Buck)	500 kHz	1	4.5 V	3.9 mm	0.154 in	8-PowerSOIC	8-SO PowerPad	65 V	1 A	-40 °C	125 ¯C
Texas Instruments LM3414HVMR/NOPB	Lighting	DC DC Regulator	Surface Mount	Automotive	Analog PWM	Step-Down (Buck)	500 kHz	1	4.5 V	3.9 mm	0.154 in	8-PowerSOIC	8-SO PowerPad	65 V	1 A	-40 °C	125 ¯C
Texas Instruments LM3414MR/NOPB	Lighting	DC DC Regulator	Surface Mount	Automotive	Analog PWM	Step-Down (Buck)	500 kHz	1	4.5 V	3.9 mm	0.154 in	8-PowerSOIC	8-SO PowerPad	42 V	1 A	-40 °C	125 ¯C
Texas Instruments LM3414HVMREVAL/NOPB
Texas Instruments LM3414SD/NOPB	Lighting	DC DC Regulator	Surface Mount	Automotive	Analog PWM	Step-Down (Buck)	500 kHz	1	4.5 V			8-WFDFN Exposed Pad	8-WSON (3x3)	42 V	1 A	-40 °C	125 ¯C
Texas Instruments LM3414HVSDEVAL/NOPB															1 A			4.5 V	65 V	Board(s)	LM3414HVSD	1 Non-Isolated Output
Texas Instruments LM3414HVSDX/NOPB	Lighting	DC DC Regulator	Surface Mount	Automotive	Analog PWM	Step-Down (Buck)	500 kHz	1	4.5 V			8-WFDFN Exposed Pad	8-WSON (3x3)	65 V	1 A	-40 °C	125 ¯C

Catalog

65-V 60-W common Anode Capable constant current buck LED driver Requires No Ext. current sensing Res

Key Features

• Supports LED Power up to 60 W(1): 18x 3-WHBLEDsRequiresNoExternal Current Sensing Resistor±3% LED Current AccuracyUp to 96% EfficiencyHigh Contrast Ratio (Minimum Dimming CurrentPulse Width <10 µS)Integrated Low-Side N-Channel MOSFETAdjustable Constant LED Current From 350 mA to1000 mASupport Analog Dimming and Thermal Fold-BackWide Input Voltage Range:4.5 V to 42 V (LM3414)4.5 V to 65 V (LM3414HV)Constant Switching Frequency Adjustable from250 kHz to 1000 kHzThermal Shutdown ProtectionPower Enhanced SOIC-8 or 3 mm × 3 mmWSON-8 PackageSupports LED Power up to 60 W(1): 18x 3-WHBLEDsRequiresNoExternal Current Sensing Resistor±3% LED Current AccuracyUp to 96% EfficiencyHigh Contrast Ratio (Minimum Dimming CurrentPulse Width <10 µS)Integrated Low-Side N-Channel MOSFETAdjustable Constant LED Current From 350 mA to1000 mASupport Analog Dimming and Thermal Fold-BackWide Input Voltage Range:4.5 V to 42 V (LM3414)4.5 V to 65 V (LM3414HV)Constant Switching Frequency Adjustable from250 kHz to 1000 kHzThermal Shutdown ProtectionPower Enhanced SOIC-8 or 3 mm × 3 mmWSON-8 Package

Description

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. 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.