LM5007SD-EVAL National Semiconductor, LM5007SD-EVAL Datasheet
LM5007SD-EVAL
Specifications of LM5007SD-EVAL
*LM5007SD-EVAL
LM5007SD EVAL
LM5007SDEVAL
LM5007SDEVAL
Related parts for LM5007SD-EVAL
LM5007SD-EVAL Summary of contents
Page 1
... Thermal Shutdown, Vcc undervoltage lockout, gate drive undervoltage lockout, and Max Duty Cycle limiter. Connection Diagram Ordering Information Order Number LM5007MM LM5007MMX LM5007SD LM5007SDX © 2008 National Semiconductor Corporation Features ■ Integrated 80V, 0.7A N-Channel Buck Switch ■ Internal HV Vcc Regulator ■ ...
Page 2
Typical Application Circuit and Block Diagram www.national.com 2 20078301 ...
Page 3
Pin Descriptions Pin Name 1 SW Switching Node 2 BST Boost Boot–strap capacitor input 3 R Current Limit OFF time programming pin CL Toff = (0.59 + ( RTN Circuit Ground 5 ...
Page 4
... 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 Electrical Characteristics Specifications with standard typeface are for T perature range ...
Page 5
... 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. ...
Page 6
Detailed Operating Description The LM5007 Step Down Switching Regulator features all of the functions needed to implement low cost, efficient, Buck bias regulators. This high voltage regulator contains an 80V, 0.7A N-Channel Buck Switch. The device is easy to apply ...
Page 7
Over-Voltage Comparator The over-voltage comparator is provided to protect the output from overvoltage conditions due to sudden input line voltage changes or output loading changes. The over-voltage com- parator monitors the FB pin versus an internal 2.875V refer- ence (OV_REF). ...
Page 8
Ton = 1. - The R pin of the LM5007 also provides a shutdown function ON which disables the regulator and significantly decreases qui- escent power dissipation. By pulling the R Current Limit The LM5007 contains ...
Page 9
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 ...
Page 10
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 20078312 FIGURE 8. ...
Page 11
Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead MSOP Package NS Package Number MUA08A 8-Lead LLP Package NS Package Number SDC08A 11 www.national.com ...
Page 12
... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...