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reference designUCC25710 | Demoboard PMP4371

Texas Instruments UCC25710 | Demoboard PMP4371

380V/350mA Dimmable LED Driver using Single String LLC Solution without Dimming FET

Overview

TopologyLLC Resonant Converter
Input voltage90-264 V
Output 1380 V / 0.35 A
IC revisionA

Description

This design is based on PMP4350 and supports higher output voltage up to 380V. Different from PMP4350, the high voltage LED switch MOSFET is removed and reduced overall cost. With additional resistor and capacitor from LEDSW to CS pin, the LED driver demos good linearity dimming performnace under analog and PWM dimming mode. High effiency (>94%), high PF(>0.94) isolated AC/DC single string output LED lighting solution for high watt (>100W) general LED lighting. The topology uses Transition Mode (TM) PFC plus LLC control and achieves high efficiency (>94%) and high PF(>0.94). The target application for this reference design is TV LED backlight, outdoor and high-bay general LED lighting.

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744823220
SPECWE-CMB Common Mode Power Line Choke, 1.5 A, 20 mH
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Downloads11 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB Common Mode Power Line Choke
Rated Current1.5 A
Inductance20 mH
DC Resistance270 mΩ
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length23 mm
Width13.8 mm
Height25.5 mm
MountTHT 
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744841247
SPECWE-CMB NiZn Common Mode Power Line Choke, 2 A, 0.047 mH
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB NiZn Common Mode Power Line Choke
Rated Current2 A
Inductance0.047 mH
DC Resistance40 mΩ
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialNiZn 
Length16 mm
Width7.5 mm
Height17.5 mm
MountTHT 
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7447021
SPECWE-FI Leaded Toroidal Line Choke, 2.5 A, 0.1 mH
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-FI Leaded Toroidal Line Choke
Rated Current2.5 A
Inductance0.1 mH
DC Resistance80 mΩ
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Length16.5 mm
Width9.7 mm
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MountTHT 
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750341229
SPECPower Inductor, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Power Inductor
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750341233
SPECFlyback Transformer, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Flyback Transformer
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