SM72295 Datasheet | National Semiconductor

Description The SM72295 is designed to drive 4 discrete N type MOSFET’s in a full bridge configuration. The drivers provide 3A of peak current for fast efficient switching and integrated high speed bootstrap diodes. Current sensing is provided by 2 transconductance amplifiers with externally programmable gain and filtering to remove ripple current to provide average current information to the control circuit. The current sense amplifiers have buffered outputs available to provide a low impedance interface to an A/D converter if needed. An externally programmable input over voltage parator is also included to shutdown all outputs. Under voltage lockout with a PGOOD indicator prevents the drivers from operating if VCC is too low. Features - - - - - - Renewable Energy Grade Dual Half Bridge MOSFET Drivers Integrated 100V bootstrap diodes Independent High and Low driver logic inputs Bootstrap supply voltage range up to 115V DC Two current sense amplifiers with externally programmable gain and buffered outputs - Programmable over voltage protection - Supply rail under-voltage lockouts with power good indicator Package - SOIC-28 Typical Application Circuit .Data Sheet.net/ © 2011 National Semiconductor Corporation .national. Datasheet pdf - http://..co.kr/ Connection Diagram Top View SOIC-28 Ordering Information Order Number SM72295X SM72295E Description 28L SOIC WIDE 28L SOIC WIDE .Data Sheet.net/ NSC Package Drawing M28B M28B Supplied As 1000 Units in Tape and Reel 250 Units in Tape and Reel .national. Datasheet pdf - http://..co.kr/ Pin Descriptions Pin 5 23 21,25 26,20 Name AGND PGND VCCA, VCCB HBA, HBB HOA, HOB HSA, HSB Description Analog ground Power ground return Positive gate drive supply High side gate driver bootstrap rail. High side gate driver output High side MOSFET source connection Application Information Ground return for the analog circuitry. Tie to the ground plane under the IC Ground return...