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A3922 Datasheet(PDF) 3 Page - Allegro MicroSystems |
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A3922 Datasheet(HTML) 3 Page - Allegro MicroSystems |
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3 / 53 page  Automotive, Full-Bridge MOSFET Driver A3922 3 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Absolute Maximum Ratings1, 2 Characteristic Symbol Notes Rating Unit Load Supply Voltage VBB –0.3 to 50 V Pumped Regulator Terminal VREG VREG –0.3 to 16 V Charge Pump Capacitor Low Terminal VCP1 CP1 –0.3 to 16 V Charge Pump Capacitor High Terminal VCP2 CP2 VCP1 – 0.3 to VREG + 0.3 V Battery Compliant Logic Input Terminals VIB HA, HBn, LAn, LB, RESETn, ENABLE –0.3 to 50 V Logic Input Terminals VI STRn, SCK, SDI –0.3 to 6 V Logic Output Terminals VO SDO –0.3 to 6 V Sense Amplifier Input VCSI CSP, CSM –4 to 6.5 V Sense Amplifier Output VCSO CSO –0.3 to VDD + 0.3 V Bridge Drain Monitor Terminals VBRG VBRG –5 to 55 V Bootstrap Supply Terminals VCX CA, CB –0.3 to VREG + 50 V High-Side Gate Drive Output Terminals VGHX GHA, GHB VCX – 16 to VCX + 0.3 V Motor Phase Terminals VSX SA, SB VCX – 16 to VCX + 0.3 V Low-Side Gate Drive Output Terminals VGLX GLA, GLB VREG – 16 to 16 V Bridge Low-Side Source Terminal VLSS LSS VREG – 16 to 18 V Operating Ambient Temperature TA Limited by power dissipation –40 to 150 ºC Maximum Junction Temperature TJ(max) 165 ºC Transient Junction Temperature TJt Overtemperature event not exceeding 10 seconds, lifetime duration not exceeding 10 hours, guaranteed by design characterization. 180 ºC Storage Temperature Tstg –55 to 150 ºC 1 With respect to GND. Ratings apply when no other circuit operating constraints are present. 2 Lowercase “x” in pin names and symbols indicates a variable sequence character. SPECIFICATIONS Thermal Characteristics: May require derating at maximum conditions; see Power Derating section Characteristic Symbol Test Conditions* Value Unit Package Thermal Resistance RθJA 4-layer PCB based on JEDEC standard 28 ºC/W 2-layer PCB with 3.8 in2 copper each side 38 ºC/W RθJP 2 ºC/W *Additional thermal information available on the Allegro website. |
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