A3935 Allegro MicroSystems, Inc., A3935 Datasheet
A3935
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A3935 Summary of contents
Page 1
... Additional protection features include dead-time, VDD undervoltage, and thermal shutdown. The A3935 is supplied in a choice of three packages, a 44-lead PLCC with copper batwing tabs (suffix ED), a 48-lead low profile QFP with exposed thermal pad (suffix JP), and a 36-lead 0.8 mm pitch SOIC (suffix LQ) ...
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... THREE-PHASE POWER MOSFET CONTROLLER 2 Functional Block Diagram See pages 8 and 9 for terminal assignments and descriptions. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 2003 Allegro MicroSystems, Inc. ...
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... Measured on typical two-sided PWB with power tabs (terminals 1, 2, 11, 12, 22, 23, 34, and 35) connected to copper foil with an 2 area of 3.8 square inches (2452 each side. See Application Note 29501.5, Improving Batwing Power Dissipation, for additional information. www.allegromicro.com 3935 THREE-PHASE POWER MOSFET CONTROLLER A3935KLQ (SOIC) 3 ...
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THREE-PHASE POWER MOSFET CONTROLLER ELECTRICAL CHARACTERISTICS 4. 5.25 V, ENABLE = 22.5 kHz, 50% Duty Cycle, Two Phases Active. DD Characteristics Symbol Power Supply V Supply Current DD V Supply Current BAT Battery Voltage Operating ...
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ELECTRICAL CHARACTERISTICS 4. 5.25 V, ENABLE = 22.5 kHz, 50% Duty Cycle, Two Phases Active. DD Characteristics Symbol Control Logic Logic Input Voltages Logic Input Currents Input Hysteresis Logic Output High Voltage Logic Output Low Voltage ...
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THREE-PHASE POWER MOSFET CONTROLLER ELECTRICAL CHARACTERISTICS 4. 5.25 V, ENABLE = 22.5 kHz, 50% Duty Cycle, Two Phases Active. DD Characteristics Symbol Sense Amplifier Input Bias Current Input Offset Current Input Resistance Diff. Input Operating ...
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ELECTRICAL CHARACTERISTICS 4. 5.25 V, ENABLE = 22.5 kHz, 50% Duty Cycle, Two Phases Active. DD Characteristics Symbol Fault Logic VDD Undervoltage VDD Undervoltage Hysteresis OVSET Operating Volt. Range OVSET Calibrated Volt. Range OVSET Input Current ...
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... Current-sense input, negative-side GND Ground, dc supply returns, negative, and (for ED package) heat sink tab 8 Terminal Functions A3935KED (PLCC 11, 12, 22, 23, 34, 35 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 A3935KJP A3935KLQ (QLFP) (SOIC ...
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AHI/BHI/CHI. Direct control of high-side gate outputs GHA/ GHB/GHC. Logic “1” drives the gate “on”. Logic ”0” pulls the gate down, turning off the external power MOSFET. Internally pulled down when terminal is open. ALO/BLO/CLO. Direct control of low-side gate ...
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... The low-side, drain-source monitor uses the LSS terminal, rather than comparing against V DRAIN The A3935 merely reports these motor faults. Fault Outputs. Transient faults on any of the fault outputs are to be expected during switching and will not disable the gate drive outputs. External circuitry or controller logic must determine if the faults represent a hazardous condition. FAULT. This terminal will go active “ ...
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... Bridge fault appears as a short-to-ground fault on all motor phases. This fault is not detected when ENABLE = 0. & = Off, only because V BOOST ' = These faults are not only reported but action is taken by the internal logic to protect the A3935 and the system. www.allegromicro.com Functional Description (cont’d) Input Logic xHI ...
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THREE-PHASE POWER MOSFET CONTROLLER Package ED, 44-Pin PLCC VDRAIN 7 VBOOST 8 BOOSTS 9 BOOSTD 10 GND 11 GND 12 VBAT 13 UVFLT 14 OVFLT 15 FAULT 16 ALO 17 12 Package JP, 48-Pin LQFP NC 37 GHA 38 ...
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... Webbed lead frame. Terminals 1, 2, 11, 12, 22, 23, 34, and 35 are internally one piece. 4. Supplied in standard sticks/tubes of 27 devices or add “TR” to part number for tape and reel. www.allegromicro.com THREE-PHASE POWER MOSFET CONTROLLER A3935KED (PLCC) 3935 Dimensions in Inches (for reference only) Dimensions in Millimeters ...
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... THREE-PHASE POWER MOSFET CONTROLLER 9 0.354 BSC 7 BSC .27 .17 14 A3935KJP (LQFP) 5 0.197 A BSC 0.276 .75 0.030 .45 0.018 0.011 0.007 .50 .020 BSC Dimensions in millimeters U.S. Customary dimensions (in.) in brackets, for reference only A Exposed thermal pad (bottom surface) 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 7º ...
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... NOTES: 1. Lead spacing tolerance is non-cumulative. 2. Exact body and lead configuration at vendor’s option within limits shown. 3. Supplied in standard sticks/tubes of 31 devices or add “TR” to part number for tape and reel. www.allegromicro.com THREE-PHASE POWER MOSFET CONTROLLER A3935KLQ (SOIC) 3935 Dimensions in Inches (for reference only) Dimensions in Millimeters ...
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... MOSFET CONTROLLER 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, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current ...