LM3402HV Series

42-V 0.5-A constant current buck LED driver

Catalog

42-V 0.5-A constant current buck LED driver

Part	Applications	Number of Outputs	Frequency	Voltage - Supply (Min) [Min]	Supplier Device Package	Current - Output / Channel	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case [y]	Package / Case [x]	Package / Case	Dimming	Topology	Type	Mounting Type	Voltage - Supply (Max) [Max]	Voltage - Output	Package / Case [custom]	Package / Case	Outputs and Type	Outputs and Type	Voltage - Input [Min]	Voltage - Input [Max]	Utilized IC / Part	Features	Supplied Contents
Texas Instruments LM3402MR/NOPB	Lighting	1	1 MHz	6 V	8-SO PowerPad	500 mA	-40 °C	125 ¯C	3.9 mm	0.154 in	8-PowerSOIC	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	42 V	40 V
Texas Instruments LM3402HVMMX/NOPB	Lighting	1	1 MHz	6 V		500 mA	-40 °C	125 ¯C			8-MSOP 8-TSSOP	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	75 V	73 V	0.118 in	3 mm
Texas Instruments LM3402HVMMX	Lighting	1	1 MHz	6 V		500 mA	-40 °C	125 ¯C			8-MSOP 8-TSSOP	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	75 V	73 V	0.118 in	3 mm
Texas Instruments LM3402HVMRX/NOPB	Lighting	1	1 MHz	6 V	8-SO PowerPad	500 mA	-40 °C	125 ¯C	3.9 mm	0.154 in	8-PowerSOIC	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	75 V	73 V
Texas Instruments LM3402MM/NOPB	Lighting	1	1 MHz	6 V		500 mA	-40 °C	125 ¯C			8-MSOP 8-TSSOP	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	42 V	40 V	0.118 in	3 mm
Texas Instruments LM3402HVEVAL/NOPB						500 mA											4 V			Non-Isolated	1	6 V	75 V	LM3402	Dimmable	Board(s)
Texas Instruments LM3402HVMR/NOPB	Lighting	1	1 MHz	6 V	8-SO PowerPad	500 mA	-40 °C	125 ¯C	3.9 mm	0.154 in	8-PowerSOIC	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	75 V	73 V
Texas Instruments LM3402MM	Lighting	1	1 MHz	6 V		500 mA	-40 °C	125 ¯C			8-MSOP 8-TSSOP	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	42 V	40 V	0.118 in	3 mm
Texas Instruments LM3402MRX/NOPB	Lighting	1	1 MHz	6 V	8-SO PowerPad	500 mA	-40 °C	125 ¯C	3.9 mm	0.154 in	8-PowerSOIC	PWM	Step-Down (Buck)	DC DC Regulator	Surface Mount	42 V	40 V
Texas Instruments LM3402EVAL/NOPB						500 mA											4 V			Non-Isolated	1	6 V	42 V	LM3402	Dimmable	Board(s)

Catalog

42-V 0.5-A constant current buck LED driver

Key Features

• Integrated 0.5-A N-channel MOSFETVINRange from 6 V to 42 V (LM3402)VINRange from 6 V to 75 V (LM3402HV)500 mA Output Current Over TemperatureCycle-by-Cycle Current LimitNo Control Loop Compensation RequiredSeparate PWM Dimming and Low Power ShutdownSupports All Ceramic-Output Capacitors and Capacitor-Less OutputsThermal Shutdown ProtectionVSSOP, SO PowerPAD PackagesIntegrated 0.5-A N-channel MOSFETVINRange from 6 V to 42 V (LM3402)VINRange from 6 V to 75 V (LM3402HV)500 mA Output Current Over TemperatureCycle-by-Cycle Current LimitNo Control Loop Compensation RequiredSeparate PWM Dimming and Low Power ShutdownSupports All Ceramic-Output Capacitors and Capacitor-Less OutputsThermal Shutdown ProtectionVSSOP, SO PowerPAD Packages

Description

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. 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.