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A3935 Datasheet(PDF) 11 Page - Allegro MicroSystems |
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A3935 Datasheet(HTML) 11 Page - Allegro MicroSystems |
11 / 13 page 3-Phase Power MOSFET Controller for Automotive Applications A3935 11 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com Number Name Function 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 phase C input 6 GHC Gate-drive C output, high-side 7 CC Bootstrap capacitor C 8 GLB Gate-drive B output, low-side 9 SB Load phase B input 10 GHB Gate-drive B output, high-side 11 CB Bootstrap capacitor B 12 GLA Gate-drive A output, low-side 13 SA Load phase A input 14 GHA Gate-drive A output, high-side 15 CA Bootstrap capacitor A 16 VREG Gate drive supply, positive 17 VDRAIN Kelvin connection to MOSFET high-side drains 18 VBOOST Boost supply output Number Name Function 19 BOOSTS Boost switch, source 20 BOOSTD Boost switch, drain 21 GND Ground, dc supply returns, negative 22 VBAT Battery supply, positive 23 UVFLT VBAT undervoltage fault output 24 OVFLT VBAT overvoltage fault output 25 ¯F¯¯A¯¯U¯¯L¯¯T¯ Active-low fault output, primary 26 ALO Gate control input A, low-side 27 AHI Gate control input A, high-side 28 BHI Gate control input B, high-side 29 BLO Gate control input B, low-side 30 CLO Gate control input C, low-side 31 CHI Gate control input C, high-side 32 ENABLE Gate output enable 33 OVSET DC input, overvoltage threshold setting for VBAT 34 CSOUT Current-sense amplifier output 35 VDD Logic supply, nominally +5 V 36 CSN Current-sense input, negative-side Pin-out Diagram CB GLA SA GHA CA VREG VDRAIN VBOOST ALO FAULT OVFLT UVFLT VBAT GND BOOSTD BOOSTS 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4 3 32 31 30 29 28 33 34 LSS GLC SC GHC CC GLB SB GHB CSOUT1 OVSET ENABLE CHI CLO BLO BHI 2 1 35 36 23 22 21 20 19 24 25 26 27 CSP VDSTH CSN VDD AHI Terminal List |
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