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A3935 Dataheets PDF



Part Number A3935
Manufacturers Allegro
Logo Allegro
Description 3-Phase Power MOSFET Controller
Datasheet A3935 DatasheetA3935 Datasheet (PDF)

A3935 3-Phase Power MOSFET Controller for Automotive Applications Features and Benefits ▪ Drives wide range of N-channel MOSFETs in 3-phase bridges ▪ PFM boost converter for use with low-voltage battery supplies ▪ Internal LDO regulator for gate-driver supply ▪ Bootstrap circuits for high-side gate drivers ▪ Current monitor output ▪ Adjustable battery overvoltage detection ▪ Diagnostic outputs ▪ Motor lead short-to-battery, short-to-ground, and bridge- open protection ▪ Undervoltage protection .

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A3935 3-Phase Power MOSFET Controller for Automotive Applications Features and Benefits ▪ Drives wide range of N-channel MOSFETs in 3-phase bridges ▪ PFM boost converter for use with low-voltage battery supplies ▪ Internal LDO regulator for gate-driver supply ▪ Bootstrap circuits for high-side gate drivers ▪ Current monitor output ▪ Adjustable battery overvoltage detection ▪ Diagnostic outputs ▪ Motor lead short-to-battery, short-to-ground, and bridge- open protection ▪ Undervoltage protection ▪ –40°C to 150°C TJ operation ▪ Thermal shutdown Package 36-pin QSOP (LQ): Approximate scale 1:1 Description TheA3935 is designed specifically for automotive applications that require high-power motors. Each provides six high-current gate drive outputs capable of driving a wide range of N-channel power MOSFETs. A requirement of automotive systems is steady operation over a varying battery input range. The A3935 integrates a pulsefrequency modulated boost converter to c.


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