LM5007EVAL National Semiconductor, LM5007EVAL Datasheet
LM5007EVAL
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LM5007EVAL Summary of contents
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... MSOP-8 LM5007MMX MSOP-8 LM5007SD LLP-8 LM5007SDX LLP-8 © 2004 National Semiconductor Corporation Features n Integrated 80V, 0.7A N-Channel Buck Switch n Internal HV Vcc Regulator n No Control Loop Compensation Required n Ultra-Fast Transient Response n On Time Varies Inversely with Line Voltage n Operating Frequency Nearly Constant with Varying Line ...
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Typical Application Circuit and Block Diagram www.national.com 2 20078301 ...
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Pin Description PIN NAME 1 SW Switching Node 2 BST Boost Boot–strap capacitor input 3 R Current Limit OFF time programming pin CL -5 Toff = 10 / (0.59 + ( RTN Circuit Ground 5 ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications GND IN BST to GND SW to GND (Steady State) ESD Rating (Note 5) Human Body Model Machine Model BST Electrical Characteristics Specifications with standard typeface are for T Temperature range ...
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... Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics. Note 2: For detailed information on soldering plastic MSOP and LLP packages, refer to the Packaging Data Book available from National Semiconductor Corporation. ...
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Hysteretic Control Circuit Overview (Continued) The output voltage (Vout) can be programmed by two exter- nal resistors as shown in Figure 1. The regulation point can be calculated as follows 2.5 x ( OUT ...
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High Voltage Bias Regulator Over-Voltage Comparator The over-voltage comparator is provided to protect the out- put from overvoltage conditions due to sudden input line voltage changes or output loading changes. The over- voltage comparator monitors the FB pin versus an ...
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ON Time generator and Shutdown Current Limit The LM5007 contains an intelligent current limit off timer intended to reduce the foldback characteristic inherent with fixed off-time over-current protection. If the current in the Buck switch exceeds 725mA the present cycle ...
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Operational Waveforms LM5007 Operation 10V 20V, I OUT IN CH1: Switch Node, CH2: V (AC), CH4: Inductor Current OUT FIGURE 4. Operational Waveforms LM5007 Operation 10V 75V, I OUT IN CH1: Switch ...
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Demo Board Bill of Materials ITEM PART NUMBER C1 C4532X7R2A105M C2 C4532X7R1E156M C3 C1206C104K5RAC C4 C1206C103K5RAC C5 C3216X7R2A104KT D1 MURA110T3 L1 SLF7045T-101MR60-1 R1 CRCW12062003F R2 CRCW12061003F R3 CRCW12063011F R4 CRCW12061001F R5 CRCW12061R00F U1 LM5007 www.national.com DESCRIPTION CAPACITOR, CER, ...
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Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead MSOP Package NS Package Number MUA08A 11 www.national.com ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...