LM3404HV Series

75-V 1.0A constant current buck LED driver

Catalog

75-V 1.0A constant current buck LED driver

Part	Current - Output / Channel [custom]	Voltage - Output	Frequency	Number of Outputs	Voltage - Supply (Min) [Min]	Topology	Voltage - Supply (Max) [Max]	Dimming	Package / Case	Package / Case [y]	Package / Case [x]	Type	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Grade	Applications	Outputs and Type	Utilized IC / Part	Voltage - Input [Max]	Voltage - Input [Min]	Current - Output / Channel	Supplied Contents	Features	Outputs and Type
Texas Instruments LM3404EVAL/NOPB
Texas Instruments LM3404HVMAX/NOPB	1 A	73 V	1 MHz	1	6 V	Step-Down (Buck)	75 V	PWM	8-SOIC	3.9 mm	0.154 in	DC DC Regulator	8-SOIC	-40 °C	125 ¯C	Surface Mount	Automotive	Lighting
Texas Instruments LM3404MRX/NOPB	1 A	40 V	1 MHz	1	6 V	Step-Down (Buck)	42 V	PWM	8-PowerSOIC	3.9 mm	0.154 in	DC DC Regulator	8-SO PowerPad	-40 °C	125 ¯C	Surface Mount	Automotive	Lighting
Texas Instruments LM3404FSTDIMEV/NOPB																			1 Non-Isolated Output	LM3404	36 V	18 V	700 mA	Board(s)	Dimmable
Texas Instruments LM3404MREVAL	1 A	37 V																	Non-Isolated	LM3404	42 V	6 V		Board(s)	Dimmable	1
Texas Instruments LM3404MRX	1 A	40 V	1 MHz	1	6 V	Step-Down (Buck)	42 V	PWM	8-PowerSOIC	3.9 mm	0.154 in	DC DC Regulator	8-SO PowerPad	-40 °C	125 ¯C	Surface Mount	Automotive	Lighting
Texas Instruments LM3404HVMAX	1 A	73 V	1 MHz	1	6 V	Step-Down (Buck)	75 V	PWM	8-SOIC	3.9 mm	0.154 in	DC DC Regulator	8-SOIC	-40 °C	125 ¯C	Surface Mount	Automotive	Lighting
Texas Instruments LM3404HVMR/NOPB	1 A	73 V	1 MHz	1	6 V	Step-Down (Buck)	75 V	PWM	8-PowerSOIC	3.9 mm	0.154 in	DC DC Regulator	8-SO PowerPad	-40 °C	125 ¯C	Surface Mount	Automotive	Lighting
Texas Instruments LM3404HVMR	1 A	73 V	1 MHz	1	6 V	Step-Down (Buck)	75 V	PWM	8-PowerSOIC	3.9 mm	0.154 in	DC DC Regulator	8-SO PowerPad	-40 °C	125 ¯C	Surface Mount	Automotive	Lighting
Texas Instruments LM3404HVMA/NOPB	1 A	73 V	1 MHz	1	6 V	Step-Down (Buck)	75 V	PWM	8-SOIC	3.9 mm	0.154 in	DC DC Regulator	8-SOIC	-40 °C	125 ¯C	Surface Mount	Automotive	Lighting

Catalog

75-V 1.0A constant current buck LED driver

Key Features

• Integrated 1-A MOSFETVINRange 6 V to 42 V (LM3404)VINRange 6 V to 75 V (LM3404HV)1.2-A Output Current OvertemperatureCycle-by-Cycle Current LimitNo Control Loop Compensation RequiredSeparate PWM Dimming and Low PowerShutdownSupports All-Ceramic Output Capacitors andCapacitor-lessOutputsThermal Shutdown ProtectionSOIC-8 Package, SO PowerPAD™-8 PackageIntegrated 1-A MOSFETVINRange 6 V to 42 V (LM3404)VINRange 6 V to 75 V (LM3404HV)1.2-A Output Current OvertemperatureCycle-by-Cycle Current LimitNo Control Loop Compensation RequiredSeparate PWM Dimming and Low PowerShutdownSupports All-Ceramic Output Capacitors andCapacitor-lessOutputsThermal Shutdown ProtectionSOIC-8 Package, SO PowerPAD™-8 Package

Description

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. 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.