ncp5911 ON Semiconductor, ncp5911 Datasheet
ncp5911
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ncp5911 Summary of contents
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... IMVP7.0 Compatible Synchronous Buck MOSFET Driver The NCP5911 is a high performance dual MOSFET gate driver optimized to drive the gates of both high−side and low−side power MOSFETs in a synchronous buck converter. It can drive load with propagation delay and 20 ns transition time. ...
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VCC PWM EN PIN DESCRIPTIONS Pin No. Symbol 1 BST Floating bootstrap supply pin for high side gate driver. Connect the bootstrap capacitor between this pin and the SW pin. 2 PWM Control input. The PWM signal has three distinctive ...
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... C4 R164 0.027uF R1 1.02 0.0 NCP5911 TP3 R143 VREG_SW1_HG 0.0 TP4 BST HG VREG_SW1_OUT PWM PWM SW DRON EN GND VREG_SW1_LG VCC LG PAD TP8 C5 1uF APPLICATION CIRCUIT VIN TP1 Q1 TP2 NTMFS4821N R142 0.0 TP5 TP7 TP6 Q9 Q10 NTMFS4851N NTMFS4851N Figure 2. Application Circuit http://onsemi.com CE9 4.7uF 4 ...
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ELECTRICAL INFORMATION Symbol Pin Name V Main Supply Voltage Input CC BST Bootstrap Supply Voltage SW Switching Node (Bootstrap Supply Return) DRVH High Side Driver Output DRVL Low Side Driver Output PWM DRVH and DRVL Control Input EN Enable Pin ...
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... NCP5911 ELECTRICAL CHARACTERISTICS 4.5 V < BST < < SWN < unless otherwise noted) Parameter SUPPLY VOLTAGE VCC Operation Voltage UNDERVOLTAGE LOCKOUT VCC Start Threshold VCC UVLO Hysteresis SUPPLY CURRENT Shutdown Mode Normal Mode Standby Current Standby Current BOOTSTRAP DIODE Forward Voltage ...
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... NCP5911 ELECTRICAL CHARACTERISTICS 4.5 V < BST < < SWN < unless otherwise noted) Parameter EN INPUT Input Voltage High Input Voltage Mid Input Voltage Low Input bias current Fault mode Enable Pin Pulldown Current Propagation Delay Time SW NODE SW Node Leakage Current Zero Cross Detection Threshold Voltage (− ...
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Table 1. DECODER TRUTH TABLE Input PWM High (Enable High) PWM Mid (Enable High) PWM Mid (Enable High) PWM Low (Enable High) Enable at Mid 1V PWM DRVH−SW DRVL IL ZCD ZCD Reset Positive Current Through the Inductor Zero Current ...
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... The NCP5911 gate driver is a single phase MOSFET driver designed for driving N−channel MOSFETs in a synchronous buck converter topology. The NCP5911 is designed to work with ON Semiconductor’s NCP6131 multi−phase controller. This gate driver is optimized for notebook applications. Undervoltage Lockout DRVH and DRVL are held low until V during startup ...
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... MILLIMETERS DIM MIN MAX A 0.80 1.00 A1 0.00 0.05 A3 0.20 REF b 0.20 0.30 D 2.00 BSC D2 1.10 1.30 E 2.00 BSC E2 0.70 0.90 e 0.50 BSC 0.30 REF K L 0.25 0.35 L1 −−− 0.10 RECOMMENDED SOLDERING FOOTPRINT* 8X 1.30 0.50 0.90 2. 0.50 0.30 PITCH DIMENSIONS: MILLIMETERS ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP5911/D ...