Non sync buck controller with 24V input and 18V @ 4.2A output


Design files


PMP7755 is a non-synchronous buck controller for LM3409 with 24V DC input and 18V output @ 4.2A. The load is 9 strings with 6 LEDs per string. It uses a motion detector with PIR (passive infarared) dimming as well as 0-10V analog dimming. It has differential high side current sensing which enables setting the dimpoint on PIR. It also has a turn on/off delay.

Output voltage options PMP7755.1
Vin (Min) (V) 24
Vin (Max) (V) 24
Vout (Nom) (V) 18
Iout (Max) (A) 4.2
Output Power (W) 75.6
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Non Sync

Design files & products

Design files

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

SNVU007.PDF (941 K)

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

SNVR009.PDF (221 K)

Detailed schematic diagram for design layout and components

SNVR010.PDF (99 K)

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


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
Test report PMP7755 Test Results Jan. 06, 2012

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