参考设计(6)
Polymer TFT Display Supply
PMP2617: A multi-Buck solution, followed by a 5V USB supply and +/-25V…+/-35V generator (with a 0.5% precision on tracking) provides all voltages to a Polymer TFT display. Very low height is the main challenge.
80V dc Input, 2-Channel, 350mA LED Driver (10V to 60V String)
PMP4154: This reference design contains two duplicate LED drivers. Each circuit drives a 10V to 60V series connected string of LEDs at 350mA. The input range is 70VDC to 90VDC. The TPS40210 boost controller is used in an "upside-down" buck topology for a simple, low-cost solution. This circuit includes an enable, PWM dimming, current trimming, and a current sense functions for interfacing with an external microprocessor.
9V - 32V input to -28V/1.5A negative output buck-boost LED current regulator
PMP6867: This reference design uses the TPS40170 sync buck controller in a buck-boost converter to regulate the current in a series string of 6 to 8 LEDs (-28V) at up to 1.5A. Efficiency is greater than 93%. The output current can be adjusted with an external control voltage.
30V @ 10Apk, 2.5ms ON, 64ms OFF
PMP5602: The PMP5602 is a "high side Buck" converter, able to supply 300W peak (30V @ 10A) for 2.5millisec, and 64millisec OFF (3.76% duty-cycle). The input voltage range is 40V to 60V.
55Vdc-80Vdc Input, 2-Channel, 350mA LED Driver (10V to 50V String)
PMP4791: This reference design contains two duplicate LED drivers. Each circuit drives a 10V to 50V series connected string of LEDs at 350mA. The input range is 55VDC to 75VDC. The TPS40210 boost controller is used in an "upside-down" buck topology for a simple, low-cost solution. This circuit includes an enable, PWM dimming, current trimming, and a current sense functions for interfacing with an external microprocessor.
国产器件
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