LED backlight driver 48V@0.26A


Design files


This SEPIC converter provides a regulated 0.26A of the current into a string of 6 to 13 LEDs. It can operate over the range of 6V to 18V and can handle a transient of 80V. The LEDs can be PWM dimmed over a 5% - 95% duty cycle and achieves an efficiency of 90%.

Output voltage options PMP6701.1
Vin (Min) (V) 6
Vin (Max) (V) 18
Vout (Nom) (V) 48
Iout (Max) (A) .26
Output Power (W) 12.48
Isolated/Non-Isolated Isolated
Input Type DC
Topology Sepic- CCM

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SLUU629.PDF (2823 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SLUR502.PDF (32 K)

Detailed schematic diagram for design layout and components

SLUR503.PDF (62 K)

Complete listing of design components, reference designators, and manufacturers/part numbers


Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

TPS402114.5-V to 52-V wide input range current mode boost controller with 260-mV reference voltage

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report PMP6701 Test Results Aug. 16, 2011

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