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See Technical Specifications

LT3791EFE#PBF

60V 4-Switch Synchronous Buck-Boost LED Driver Controller

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

LT3791EFE#PBF
Datasheet:

LT3791EFE#PBF Datasheet (PDF)
packingQty:

Tube,50
packingOption:

Tube
tempRange:

-40 to 125C
Series:

LT3791
EDA/CAD Models:

Request Free CAD Models for LT3791EFE#PBF

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LT3791EFE#PBF General Description

The LT3791 is a synchronous 4-switch buck-boost LED driver controller. The controller can regulate LED current up to 52V of LED string with input voltages above, below, or equal to the output voltage. The constant-frequency, forced-continuous current mode architecture allows its frequency to be adjusted or synchronized from 200kHz to 700kHz. No top MOSFET refresh switching cycle is needed in buck or boost operation. With 60V input, 60V output capability and seamless transitions between operating regions, the LT3791 is ideal for LED driver applications in automotive, industrial, and even battery-powered systems.

Key Features

4-Switch Single Inductor Architecture Allows V_IN Above, Below or Equal to V_OUT
Synchronous Switching: Up to 98.5% Efficiency
Wide V_IN Range: 4.7V to 60V
Wide V_OUT Range: 0V to 60V (52V LED)
±6% LED Current Accuracy: 0V ≤ V_LED < 52V
True Color PWM^™ and Analog Dimming
LED and Input Current Regulation with Current Monitor Outputs
No Top MOSFET Refresh in Buck or Boost
V_OUT Disconnected From V_IN During Shutdown
Open or Shorted LED Fault Protection
Capable of 100W or Greater per IC
38-Lead TSSOP with Exposed Pad

Application

Automotive Head Lamps/Running Lamps
General Purpose Lighting

Specifications

model	LT3791EFE#PBF	packingQty	Tube,50
packingOption	Tube	lifeCycle	production
tempRange	-40 to 125C	Product Category	LED Lighting Drivers
Series	LT3791	Mounting Style	SMD/SMT
Number of Outputs	1 Output	Output Current	3 A
Input Voltage, Min	4.7 V	Input Voltage, Max	60 V
Topology	Boost, Buck	Operating Frequency	200 kHz to 700 kHz
Output Voltage	60 V	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C	Features	PWM Dimming, Open LED Protection
Height	1.2 mm	Input Voltage	4.7 V to 60 V
Number of Channels	1 Channel	Product	LED Drivers
Product Type	LED Lighting Drivers	Factory Pack Quantity	50
Subcategory	Driver ICs	Supply Current - Max	4 mA
Type	Synchronous 4 Switch LED Driver Controller	Unit Weight	0.015027 oz