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SI9976DY-T1-E3 データシート(PDF) 1 Page - Vishay Siliconix |
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SI9976DY-T1-E3 データシート(HTML) 1 Page - Vishay Siliconix |
1 / 6 page Si9976 Vishay Siliconix Document Number: 70016 S-40757—Rev. F, 19-Apr-04 www.vishay.com 1 N-Channel Half-Bridge Driver FEATURES APPLICATIONS D Single Input for High-Side and Low-Side MOSFETs D 20- to 40-V Supply D Static (dc) Operation D Cross-Conduction Protected D Undervoltage Lockout D ESD and Short Circuit Protected D Fault Feedback D Power Supplies D Motor Drives D Office Automation D Computer Peripherals D Industrial Controllers D Robotics D Medical Equipment DESCRIPTION The Si9976 is an integrated driver for an n-channel MOSFET half-bridge. Schmitt trigger inputs provide logic signal compatibility and hysteresis for increased noise immunity. An internal low-voltage regulator allows the device to be powered directly from a system supply of 20 to 40 volts. Both half-bridge n-channel gates are driven directly with low-impedance outputs. Addition of one external capacitor allows an internal circuit to level shift both the power supply and logic signal for the half-bridge high-side n-channel gate drive. An internal charge pump replaces leakage current lost in the high-side driver circuit to provide “static” (dc) operation in any output condition. Protection features include an undervoltage lockout, cross-conduction prevention logic, and a short circuit monitor. The Si9976 is available in both standard and lead (Pb)-free, 14-pin SOIC (surface mount) packages, specified to operate over the industrial (−40 to 85_C) temperature range. FUNCTIONAL BLOCK DIAGRAM V+ IN EN GND VDD VCC FAULT R SQ VDD CAP S1 G2 G1 V+ CBoot GND 0.01 mF 3 4 7 8 5 6 10 2 13 12 9 Bootstrap Regulator Half- Bridge Output Under Voltage Lockout 2 Charge Pump Under Voltage Lockout 1 Short Circuit & UVL Detect 250 ns Delay 300 ns Delay Substrate Enable Latch Low Voltage Regulator |
同様の部品番号 - SI9976DY-T1-E3 |
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同様の説明 - SI9976DY-T1-E3 |
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