A4934GLPTR-T Allegro Microsystems Inc, A4934GLPTR-T Datasheet
A4934GLPTR-T
Specifications of A4934GLPTR-T
Related parts for A4934GLPTR-T
A4934GLPTR-T Summary of contents
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Features and Benefits • Sensorless (no Hall sensors required) • Soft switching for reduced audible noise • Minimal external components • PWM speed input • FG speed output • Low power standby mode • Lock detection • Optional overcurrent protection ...
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... A4934 Selection Guide Part Number A4934GLPTR-T 4000 pieces per 13-in. reel Absolute Maximum Ratings Characteristic Supply Voltage Logic Input Voltage Range Logic Output Voltage Output Current Operating Ambient Temperature Maximum Junction Temperature Storage Temperature Recommended Operating Conditions Characteristic Supply Voltage Output Current ...
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A4934 ELECTRICAL CHARACTERISTICS Characteristics VBB Supply Current Total Driver R (Sink + Source) DS(on) Overcurrent Threshold PWM Low Level PWM High Level Input Hysteresis Logic Input Current Output Saturation Voltage FG Output Leakage Protection Circuitry Lock Protection Thermal Shutdown Temperature ...
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A4934 The driver system is a three-phase, BEMF sensing motor control- ler and driver. Commutation is controlled by a proprietary BEMF sensing technique. The motor drive system consists of three half bridge NMOS outputs, BEMF sensing circuits, adaptive commutation control, ...
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A4934 the commutation delay period, a CDCOM is asserted, starting the Blank timer. The Blank signal disables the BEMF detector so the comparator is not active during the commutation transients. The next zero crossing, detected on the tri-stated output, causes ...
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A4934 SLEW VBB 25 V GND Three-Phase Sensorless Fan Driver Input/Output Structures V BB VCP GND CP1 GND CP2 GND 100 kΩ PWM 8 V GND GND CTAP GND FG TEST 8 V GND GND 250 kΩ ...
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A4934 M CTAP 1 OUTC OUTB A4934 2 CP1 OUTA CP2 SENSE C3 4 VCP VBB PAD 5 GND CTAP SLEW GND 7 R2 PWM TEST Typical Application Circuit; speed ...
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A4934 Package LP, 16-Pin TSSOP with Exposed Thermal Pad 5.00±0. NOM 16X 0.10 C 0.30 0.19 0.65 BSC Copyright ©2010, Allegro MicroSystems, Inc. Allegro MicroSystems, Inc. reserves the right to make, from time to ...