A3932SEQ-T Allegro Microsystems Inc, A3932SEQ-T Datasheet
A3932SEQ-T
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A3932SEQ-T Summary of contents
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Features and Benefits ▪ Drives wide range of N-channel MOSFETs ▪ Synchronous rectification ▪ Power MOSFET protection ▪ Adjustable dead time for cross-conduction pro tec tion ▪ 100% duty cycle operation ▪ Selectable fast or slow current-decay modes ▪ Internal ...
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A3932 Selection Guide Part Number A3932SLDTR-T 4000 pieces per reel Absolute Maximum Ratings Characteristic Supply Voltage Peak Regulator Voltage Logic Input Voltage Range Sense Voltage Range Output Voltage Range SA, SB, SC Pins GHA, GHB, GHC Pins CA, CB, CC ...
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A3932 Three-Phase Power MOSFET Controller Pin-Out Diagram 38-pin TSSOP (suffi x LD) RESET GLC PGND AGND DEAD GHC 6 33 REF SENSE ...
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A3932 Three-Phase Power MOSFET Controller Functional Block Diagram NOTE — For 12 V applications, VBB is shorted to VREG. The V absolute maximum rating (15 V) must not be REG ex ceed ed. 4 Allegro MicroSystems, Inc. 115 Northeast Cutoff ...
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A3932 ELECTRICAL CHARACTERISTICS: unless otherwise noted 0.1 μ μF; C boot REG Parameter Supply Current Quiescent Current Reference Voltage Output Voltage V Output Voltage Regulation Digital Logic Levels Logic Input Voltage Logic ...
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A3932 ELECTRICAL CHARACTERISTICS: unless otherwise noted 0.1 μ μF; C boot REG Parameter Symbol Bootstrap Capacitor Bootstrap Charge Current Bootstrap Output Voltage Bootstrap Resistance Current Limit Circuitry Input Offset Voltage SENSE Input Current ...
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A3932 LD Name 1 RESET 2 GLC 3 SC 4,5,18, NC 23,37,38 6 GHC GLB GHB GLA GHA VREG 17 LCAP 19 FAULT 20 MODE ...
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A3932 FAULT — Open-drain output to indicate fault condition; FAULT = 1 (external pull-up) for any of the following: 1 – invalid HALL input code, 2 – undervoltage condition detected at VREG. 3 – thermal shutdown – motor ...
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A3932 Logic Inputs DIR ...
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A3932 Synchronous Rectifi cation. To reduce power dissipation in the external MOSFETs, the A3932 control logic turns on the appropriate low-side and high-side driver during the load-current recirculation, PWM-off cycle. Synchronous rectifi cation allows current to fl ow through the ...
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A3932 Current Control. Internal fi xed off-time PWM circuitry is implemented to limit load current to a desired value. When a high-side and low-side MOSFET are turned on, current will increase in the motor winding until it reaches a value ...
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A3932 9. 38X 0.10 C 0.50 0.22 Copyright ©2002-2008, Allegro MicroSystems, Inc. The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, ...