A3946KLPTR-T Allegro Microsystems Inc, A3946KLPTR-T Datasheet
A3946KLPTR-T
Specifications of A3946KLPTR-T
A3946KLPTR-T
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A3946KLPTR-T Summary of contents
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Half-Bridge Power MOSFET Controller Features and Benefits ▪ On-chip charge pump for 7 V minimum input supply voltage ▪ High-current gate drive for driving a wide range of N-channel MOSFETs ▪ Bootstrapped gate drive with top-off charge pump for 100% ...
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... A3946 Selection Guide Part Number Packing A3946KLPTR-T 4000 pieces/reel 16-pin TSSOP with exposed thermal pad Absolute Maximum Ratings Characteristic Load Supply Voltage Logic Inputs Voltage Pin S Voltage Pin GH Voltage Pin BOOT Voltage Pin DT Voltage Pin VREG Voltage Operating Ambient Temperature Maximum Junction Temperature ...
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A3946 VREF 0.1 uF X7R ~FAULT L VREF DT R DEAD IN1 L L IN2 L RESET Control Logic Table IN1 IN2 DT Pin LGND DEAD 0 1 ...
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A3946 ELECTRICAL CHARACTERISTICS at T Characteristics Symbol V Quiescent Current I BB VBB VREG Output Voltage V REG Charge Pump Frequency F CP VREF Output Voltage V REF Top-Off Charge Pump I TO Current Gate Output Drive Turn On Time ...
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A3946 ELECTRICAL CHARACTERISTICS Characteristics Protection VREG Undervoltage BOOT Undervoltage Thermal Shutdown Temperature Thermal Shutdown Hysteresis Logic Input Current Logic Input Voltage Logic Input Hysteresis Fault Output Half-Bridge Power MOSFET Controller –40 to +135° Symbol Test ...
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A3946 VREG output from the on-chip charge pump, used to power the low-side gate drive circuit directly, provides the current to charge the bootstrap capacitors for the high-side gate drive. The VREG capacitor must supply ...
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A3946 Dead Time. The analog input pin DT sets the delay to turn on the high- or low-side gate outputs. When in struct ed to turn off, the gate outputs change after an short internal propa- gation delay (90 ns ...
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A3946 Bootstrap Capacitor Selection. C rectly selected to ensure proper operation of the device. If too large, time is wasted charging the capacitor, with the result being a limit on the maximum duty cycle and PWM frequency. If the capacitor ...
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A3946 VREF VREF 0 ~FAULT DT R DEAD 15.8 k IN1 L IN Forward IN IN2 Brake External +5 V RESET Diagram A. Dependent drivers. Unidirectional motor control with braking and dead time. T Half-Bridge Power ...
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A3946 P VREF VREF 0 ~FAULT L VREF DT DC Motor #1 IN1 Forward Slow Decay DC Motor #2 L Forward IN2 Slow Decay L External +5 V RESET Diagram B. Independent drivers. One high-side drive ...
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A3946 C2 10 μF P VREF VREF 0 ~FAULT L VREF DT DC Motor #1 IN1 Forward Slow Decay DC Motor #2 L Forward IN2 Slow Decay L External +5 V RESET Diagram C. Independent drivers. ...
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A3946 Terminal List Table Name Number VREG 1 Gate drive supply. CP2 2 Charge pump capacitor, positive side. When not using the charge pump, leave this pin open. CP1 3 Charge pump capacitor, negative side. When not using the charge ...
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A3946 5.00 ±0. 3.00 16X 0.10 C +0.05 0.65 0.25 –0.06 For Reference Only (reference JEDEC MO-153 ABT) Dimensions in millimeters Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead ...
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A3946 Copyright ©2003-2010 Allegro MicroSystems, Inc. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail spec tions as may be required to per- mit improvements in the ...