DatasheetsPDF.com

A4910

Allegro
Part Number A4910
Manufacturer Allegro
Description Automotive 3-Phase MOSFET Driver
Published Dec 6, 2023
Detailed Description A4910 Automotive 3-Phase MOSFET Driver FEATURES AND BENEFITS • High-current 3-phase gate drive for N-channel MOSFETs • ...
Datasheet PDF File A4910 PDF File

A4910
A4910

Overview
A4910 Automotive 3-Phase MOSFET Driver FEATURES AND BENEFITS • High-current 3-phase gate drive for N-channel MOSFETs • 3-phase current sense amplifiers • SPI-compatible serial or direct parallel control • Cross-conduction protection • Programmable dead time • Top-off charge pump for 100% PWM • Uncommitted buffer amplifier • 5.
5 to 50 V supply voltage range • CMOS inputs, 3.
3 to 5 V logic supply • Extensive diagnostics output • Low-current sleep mode PACKAGE: 48-pin LQFP with exposed thermal pad (suffix JP) Not to scale DESCRIPTION The A4910 is a three-phase controller for use with N-channel external power MOSFETs and is specifically designed for automotive applications.
A unique charge-pump regulator provides full (>10 V) gate drive for battery voltages down to 7 V, and allows the A4910 to operate with a reduced gate drive down to 5.
5 V.
A bootstrap capacitor is used to provide the above battery supply voltage required for N-channel MOSFETs.
An internal charge pump for the high-side drive allows DC (100% duty cycle) operation.
Full control over all six power MOSFETs in the 3-phase bridge is provided, allowing motors to be driven with block commutation or sinusoidal excitation.
The power MOSFETs are protected from shoot-through by integrated crossover control and programmable dead time.
Continued on the next page… APPLICATIONS • Electronic power steering (EPS, EHPS, EAS) • Hydraulic pumps • Engine cooling fan • Gearbox actuator Typical Application VBAT Regulator VBAT DSP or Microcontroller Control Diagnostics A4910 Current Sense 3-Phase BLDC Motor A4910-DS, Rev.
4 MCO-0000779 February 9, 2022 A4910 Automotive 3-Phase MOSFET Driver DESCRIPTION (continued) Current in each half bridge can be measured using integrated current sense amplifiers.
These are three user-configurable differential amplifiers, with below-ground common-mode range and excellent transient response and settling time, allowing them to be used in low-side current-sense applications.
Int...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)