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NCP3418B Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP3418B Datasheet(HTML) 1 Page - ON Semiconductor |
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© Semiconductor Components Industries, LLC, 2006 March, 2006 − Rev. 5 1 Publication Order Number: NCP3418B/D NCP3418B MOSFET Driver with Dual Outputs for Synchronous Buck Converters The NCP3418B is a single Phase 12 V MOSFET gate driver optimized to drive the gates of both high−side and low−side power MOSFETs in a synchronous buck converter. The high−side and low−side driver is capable of driving a 3000 pF load with a 25 ns propagation delay and a 20 ns transition time. With a wide operating voltage range, high or low side MOSFET gate drive voltage can be optimized for the best efficiency. Internal adaptive nonoverlap circuitry further reduces switching losses by preventing simultaneous conduction of both MOSFETs. The floating top driver design can accommodate VBST voltages as high as 30 V, with transient voltages as high as 35 V. Both gate outputs can be driven low by applying a low logic level to the Output Disable (OD) pin. An Undervoltage Lockout function ensures that both driver outputs are low when the supply voltage is low, and a Thermal Shutdown function provides the IC with overtemperature protection. The NCP3418B is pin−to−pin compatible with Analog Devices ADP3418 with the following advantages: Features • Faster Rise and Fall Times • Thermal Shutdown for System Protection • Internal Pulldown Resistor Suppresses Transient Turn On of Either MOSFET • Anti Cross−Conduction Protection Circuitry • Floating Top Driver Accommodates Boost Voltages of up to 30 V • One Input Signal Controls Both the Upper and Lower Gate Outputs • Output Disable Control Turns Off Both MOSFETs • Complies with VRM10.x and VRM11.x Specifications • Undervoltage Lockout • Thermal Shutdown • Thermally Enhanced Package Available • These are Pb−Free Devices Device Package Shipping† ORDERING INFORMATION SO−8 (Pb−Free) 2500 Tape & Reel NCP3418BDR2G A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package MARKING DIAGRAMS PIN CONNECTIONS SO−8 D SUFFIX CASE 751 1 8 DRVL VCC 18 PGND OD SWN IN DRVH BST http://onsemi.com †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. 3418B ALYW G 1 8 DFN−10 MN SUFFIX CASE 485C DFN−10 (Pb−Free) 3000 Tape & Reel NCP3418BMNR2G PGND VCC PGND OD SWN IN DRVH BST DRVL VCC (Top View) 110 3418B ALYW G |
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