PMP4298, Direct Type/Local Dimming (Conventional TV power + Boost + LED driver)
使用 Texas Instruments 的 TLC5960DA 的参考设计
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相关文件
依据最终产品
- High-Power LED
- LCD Backlighting
说明
- PMP4298, Reference Design Using UCC28051 is a boost transition mode power factor corrector (PFC), which can rectify an AC input line voltage to 380V DC, the resonant LLC stage UCC25600 regulates the output to 24V/2A for an audio amplifier with feedback to the LLC controller and 48V for the LED driver input. The flyback with UCC28610 in parallel generates 5V/3A for the system board and 5V/1A for standby power. In the LED driver stage, the 48V input voltage requires another front end boost stage to boost the output voltage to 80V, which connects to the eight-channel TLC5960 with 20LEDs at 120mA per string. This technique is the most common type of current LED backlight, the LLC design is easily implemented. The intelligent headroom voltage monitor automatically minimizes the power loss caused by the LED forward voltage change
主要特色
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Input Voltage85 to 265 (AC) V
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Output Voltage380 V
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Output Current0.12 A
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Output Power150 W
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Number of Derived Elements20
Featured Parts (8)
| 零件编号 | 供应商 | 类别 | 说明 | |||
|---|---|---|---|---|---|---|
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TPS40210 | Texas Instruments | DC to DC Controllers | DC/DC Cntrlr Single-OUT Step Up 1000kHz 10-Pin HVSSOP EP Tube | 买入 | |
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UCC28051D | Texas Instruments | Power Factor Correction - PFC | Power Factor Correction Controller 200kHz 8-Pin SOIC Tube | 买入 | |
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TPS40210DGQ | Texas Instruments | DC to DC Controllers | DC/DC Cntrlr Single-OUT Step Up 1000kHz 10-Pin HVSSOP EP Tube | 买入 | |
|
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UCC25600D | Texas Instruments | PWM and Resonant Controllers | Resonant Controller 400kHz 8-Pin SOIC Tube | 买入 | |
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UCC28610D | Texas Instruments | AC to DC Switching Converters | AC to DC Switching Converter Flyback Tube 8-Pin SOIC | 买入 | |
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FOD817A | onsemi | Transistor and Photovoltaic Output Photocouplers | Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP Black Box | 买入 | |
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TL431AIDBZR | Texas Instruments | Voltage References | V-Ref Adjustable 2.495V to 36V 100mA 3-Pin SOT-23 T/R | 买入 | |
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TLC5960DA | Texas Instruments | LED Drivers | LED Driver 16000uA Supply Current 38-Pin TSSOP Tube | 买入 | |