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User’s Guide

UCC28514 User’s Guide

User’s Guide

Summary of content (14 pages)

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User’s Guide UCC28514 User’s Guide User’s Guide
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EVM IMPORTANT NOTICE (CATEGORY B) IMPORTANT: TI is providing the enclosed HPA013B/HPA020A evaluation module under the following conditions: This evaluation module (EVM) being provided by Texas Instruments (TI) is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by Texas Instruments to be fit for commercial use.
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DYNAMIC WARNINGS AND RESTRICTIONS It is important to operate this EVM within the maximum input voltage ranges specified in section 6. Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative prior to connecting the input power. Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.
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SLUU165A − November 2003 − Revised July 2004 UCC28514 User’s Guide Power Supply Control Products Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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SLUU165A − November 2003 − Revised July 2004 Schematic The schematic is broken up into three sections to make it more legible for the user. + 3 Figure 1.
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+ SLUU165A − November 2003 − Revised July 2004 Figure 2.
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+ SLUU165A − November 2003 − Revised July 2004 Figure 3.
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SLUU165A − November 2003 − Revised July 2004 4 List of Materials Table 1 lists the components used in this design. With minor component tweaks this design could be modified to meet a wide range of applications. Table 1.
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SLUU165A − November 2003 − Revised July 2004 REFERENCE QTY DESCRIPTION MANUFACTURER PART NUMBER R1 1 Resistor, wirewound, 3 W, axial, 187500 Huntington Electric ALSR−3−.33−1% R2, R4 2 Resistor, chip, 10 kΩ, 1/4 W, 1%, 1210 Panasonic ERJ−14NF1002U R3 1 Resistor, chip, 49.9 kΩ, 1/4 W, 1%, 1210 Panasonic ERJ−14NF4992U R5 1 Resistor, power metal film, 500 V, 3 W, 5±%, 1,000 X 0.200 BCcomponents 5093NW82K00J08AFX R6 1 Resistor, power metal film, 2 kΩ, 3 W, 5±%, 1,000 X 0.
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SLUU165A − November 2003 − Revised July 2004 Table 2. Daughter Board List of Materials REFERENCE QTY DESCRIPTION MANUFACTURER PART NUMBER C1 1 Capacitor, ceramic, 390 pF, 50 V, X7R, 10%, 805 Panasonic ECU−V1H391KBN C2 1 Capacitor, ceramic, 2.2 nF, 50 V, X7R, 10%, 805 Panasonic ECJ−2VB1H222K C3, C6 2 Capacitor, ceramic, 10 nF, 50 V, X7R, 10%, 805 Panasonic ECJ−2VB1H103K C4, C11 2 Capacitor, ceramic, 100 pF, 50 V, X7R, 10%, 805 Panasonic ECJ−2VC1H101J C5 1 Capacitor, ceramic, 2.
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SLUU165A − November 2003 − Revised July 2004 R9 R6 Reference Design Layout R5 5 Figure 4.
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SLUU165A − November 2003 − Revised July 2004 NOTE: R23 can be found on the back of the daughter board. Figure 5.
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SLUU165A − November 2003 − Revised July 2004 7 Reference Design Performance OUTPUT A EFFICIENCY vs OUTPUT POWER OUTPUT A POWER FACTOR vs OUTPUT POWER 1 90 VIN = 265 V 85 PF − Power Factor 75 VIN = 175 V 70 VIN = 85 V 65 VIN = 175 V VIN = 265 V 50 80 0.95 VIN = 85 V 0.90 60 55 0.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.