LM5022LEDEVAL National Semiconductor, LM5022LEDEVAL Datasheet
LM5022LEDEVAL
Specifications of LM5022LEDEVAL
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LM5022LEDEVAL Summary of contents
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... The example circuit which comes on the evaluation board powers ten series-connected white LEDs at a forward current ±10% from an input of 10V to 14V. White LEDs based F © 2007 National Semiconductor Corporation National Semiconductor Application Note 1605 Chris Richardson October 2007 complete schematic for all the components is shown in Figure 1 ...
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Powering The Converter The input voltage should be connected between the VIN and GND terminals on the left side of the board. The series-con- nected chain of LEDs should be connected between the LED Enabling The Converter Once the input ...
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Testing The Converter Figure 5 shows a block diagram of connections for making measurements of efficiency. The wires used for making con- nections at the input should be rated to at least 5A of contin- uous current and should be ...
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Typical Performance Characteristics (T = 25°C and V = 12V unless noted Output Current Vs. Input Voltage Switch Node Voltage Dimming Response (I www.national.com 30013306 30013308 Rising) F 30013310 4 Output Current Vs. Temperature 30013307 Output Current Ripple ...
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Bill of Materials ID Part Number U1 LM5022 U2 Not Used Q1 Si4850EY Q2 DMMT5401 Q3 TN0200K D1 CMSH2-60 D2 CMDZ47L L1 PF0552.223NL Cin1 Cin2 C3225X7R1E685M Co C4532X7R1H475M Cf C3216X7R1E105K Cinx Cox C2012X7R2A104M C1 VJ0805Y181KXXAT C2 VJ0805Y182KXXAT Css VJ0805Y222KXXAT Csns ...
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PC Board Layout www.national.com PCB Top Layer and Top Overlay 6 30013312 ...
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PCB Bottom Layer 7 30013313 www.national.com ...
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