A3935KLQ Allegro Microsystems Inc, A3935KLQ Datasheet
A3935KLQ
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A3935KLQ Summary of contents
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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 ...
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... Part Number Pb-free A3935KLQTR* – 1500 pieces/reel A3935KLQTR-T Yes * Variant is in production but has been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of the variant is currently restricted to existing customer applications. The variant should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available. ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications VBAT OS (blank) External +5V VDD AHI ALO BHI BLO Control Logic CHI CLO ENABLE FAULT OVFLT VBAT Overvoltage VBAT Undervoltage UVFLT VREG Undervoltage Short to Ground OVSET Short to Battery Bridge ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications ELECTRICAL CHARACTERISTICS 50% duty cycle, two phases active;unless otherwise noted Characteristics Power Supply V Supply Current DD V Supply Current BAT Battery Voltage Operating Range Bootstrap Diode Forward Voltage Bootstrap Diode Resistance ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications ELECTRICAL CHARACTERISTICS (continued) ENABLE = 22.5 kHz, 50% duty cycle, two phases active;unless otherwise noted Characteristics Gate Drives, GLx (internal sink or lower switch stages) Sink Current (pulsed) Sink On Resistance 5,6 ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications ELECTRICAL CHARACTERISTICS (continued) ENABLE = 22.5 kHz, 50% duty cycle, two phases active;unless otherwise noted Characteristics VBAT Overvoltage Gain Constant VBAT Undervoltage VBAT Undervoltage Hysteresis VREG Undervoltage VDSTH Input Range VDSTH Input ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications Characteristic Package Thermal Resistance *Additional thermal information available on Allegro Web site. Power Dissipation versus Ambient Temperature Thermal Characteristics Symbol Test Conditions 4-layer PCB, based on JEDEC standard θJA 5.0 ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications AHI, BHI, and CHI. Direct control of high-side gate outputs GHA, GHB, and GHC. Logic 1 drives the gate on. Logic 0 pulls the gate down, turning off the external power MOSFET. ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications Motor Lead Protection. A fault detection circuit monitors the voltage across the drain-to-source of the external MOSFETs. A fault is asserted low on the output terminal, ¯ F ¯ ¯ A ¯ ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications Input Logic Table Input ENABLE xLO 0 Don’t Care Fault Response Table Operating Conditions Fault Mode No Fault Short-to-Battery Short-to-Ground Bridge (VDRAIN) Fault VREG ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications Terminal List Number Name 1 CSP Current-sense input, positive-side 2 VDSTH DC input, drain-to-source monitor threshold voltage 3 LSS Gate-drive source return, low-side 4 GLC Gate-drive C output, low-side 5 SC Load ...
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A3935 3-Phase Power MOSFET Controller for Automotive Applications 15.30 ±0. 36X 0.10 A +0.12 0.40 (0.80) –0.11 Copyright ©2005-2008, Allegro MicroSystems, Inc. The products described here are manufactured under one or more U.S. patents or U.S. ...