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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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3935 датащи(PDF) 1 Page - Allegro MicroSystems |
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3935 датащи(HTML) 1 Page - Allegro MicroSystems |
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1 / 16 page  Always order by complete part number, e.g., A3935KLQ . 3-PHASE POWER MOSFET CONTROLLER — For Automotive Applications 3935 The A3935 is designed specifically for automotive applications that require high-power motors. Each provides six high-current gate drive outputs capable of driving a wide range of n-channel power MOSFETs. A requirement of automotive systems is steady operation over a varying battery input range. The A3935 integrates a pulse-frequency modulated boost converter to create a constant supply voltage for driving the external MOSFETs. Bootstrap capacitors are utilized to provide the above battery supply voltage required for n-channel FETs. Direct control of each gate output is possible via six TTL-compat- ible inputs. A differential amplifier is integrated to allow accurate measurement of the current in the three-phase bridge. Diagnostic outputs can be continuously monitored to protect the driver from short-to-battery, short-to-supply, bridge-open, and battery under/overvoltage conditions. 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). FEATURES ! ! ! ! ! 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 for high-side gate drivers ! ! ! ! ! Current monitor output ! ! ! ! ! Adjustable battery overvoltage detection. ! ! ! ! ! Diagnostic outputs ! Motor lead short-to-battery, short-to-ground, and bridge-open protection ! Undervoltage protection ! ! ! ! ! -40 °C to +150 °C, T J operation ! ! ! ! ! Thermal shutdown ABSOLUTE MAXIMUM RATINGS Load Supply Voltages, VBAT, VDRAIN, VBOOST, BOOSTD ... -0.6 V to 40 V Output Voltage Ranges, GHA/GHB/GHC, V GHX .. -4 V to 55 V SA/SB/SC, V SX ............... -4 V to 40 V GLA/GLB/GLC, V GLX .... -4 V to 16 V CA/CB/CC, V CX .......... -0.6 V to 55 V Sense Circuit Voltages, CSP,CSN, LSS ............... -4 V to 6.5 V Logic Supply Voltage, V DD ........................... -0.3 V to +6.5 V Logic Input/Outputs and OVSET, BOOSTS, CSOUT, VDSTH ......... -0.3 V to 6.5 V Operating Temperature Range, T A ........................... -40°C to +135°C Junction Temperature, T J ........... +150°C Storage Temperature Range, T S ........................... -55°C to +150°C * Fault conditions that produce excessive junction temperature will activate device thermal shutdown circuitry. These conditions can be tolerated, but should be avoided. Package ED, 44-Pin PLCC Package JP, 48-Pin LQFP Package LQ, 36-Pin SOIC |
Аналогичный номер детали - 3935 |
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Аналогичное описание - 3935 |
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