Products Overview
AMT49413 Automotive 3-Phase BLDC Controller and MOSFET Driver
Allegro MicroSystems
AMT49413: High Power BLDC MOSFET Controller with Integrated Hall Commutation
The AMT49413 is a three-phase brushless DC motor controller for use with N-channel external power MOSFETs designed for automotive and industrial applications. The AMT49413 includes the required logic to spin a motor without any code— facilitating shorter design cycles.
The AMT49413 is designed to operate across a wide voltage range, including automotive applications up to 50V. A unique charge pump regulator provides adequate (>10 V) gate drive for battery voltages down to 7 V, and allows the device to operate with a reduced gate drive at battery voltages down to 5.5 V. Power dissipation in the charge pump is minimized by switching from a voltage doubling mode at low supply voltage to a dropout mode at the nominal running voltage of 14 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 for DC (100% duty cycle) operation.
Internal fixed-frequency PWM current control circuitry can be used to regulate the maximum load current. The peak load current limit is set by the selection of an input reference voltage and external sensing resistor. The PWM frequency is set by a user-selected external RC timing network. For added flexibility, the PWM input can be used to provide speed and torque control, allowing the internal current control circuit to set the maximum current limit.
Efficiency is enhanced by using synchronous rectification. A full suite of protection features is provided including MOSFET crossover control with dead time, undervoltage, overvoltage, HALL logic fault, low motor current and short to ground, supply and across motor winding. The dead time can be set by a single external resistor. Allegro recommended hall latches: APS13290-1.
The AMT49413 is supplied in a 48-pin QFN with exposed thermal pad and is available in a wettable flank for automotive applications. This is a small footprint (49 mm2) power package providing nearly a 40% footprint reduction compared to an equivalent QFP package.
| Part Number | Type | Operating Supply Current | Technology | Mounting Style | Number of Outputs | Moisture Sensitive | Applications | Output Voltage | Operating Temperature | Voltage - Supply | Package Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AMT49413 | 3 Phase | 10 mA | NMOS | SMD/SMT | 3 Output | Yes | General Purpose | 13V | -20 °C ~ 105 °C(TA) | 5.5V ~ 50V | 48-Lead QFN with exposed thermal pad and wettable flank (suffix EV) |
-
Datasheet Download on Mar, 2022
Main Products
Allegro Micro Systems
A33115 Precision TMR Angle Sensor
360° angle sensor that provides high-resolution angular position information.
Current Sensor
Integrated shield virtually eliminates capacitive coupling from current conductor to die, greatly suppressing output noise due to high dv/dt transients.
A31010 Unidirectional Linear Hall-Effect Sensors
Provide a voltage output proportional to the applied magnetic field.
A89506 Full-Bridge PWM Gate Driver
Ideal for DC motors and actuators in conventional, hybrid, and electric vehicles.
Brushless DC Drivers
Engineered to meet market challenges, delivering cost-optimized systems and improved time-to-market.
Brush DC Drivers
Broad portfolio of safe and robust brush DC solutions with both integrated and MOSFET gate drivers.
Stepper Motor Drivers
Delivers quiet, efficient, smooth motion to minimize noise and vibration in stepper motor designs.
Sensor Interface ICs
Allegro’s interface sensor ICs for speed and pressure sensors deliver fast and accurate output ideal for today’s demanding, space-constrained automotive and industrial applications.
Industrial Regulators
Allegro’s multiple-output DC/DC regulators enable smart and robust industrial designs.
Devoted to Excellent Professional Technical Support Throughout the Supply Chain
Everstar currently serves global semiconductor brands, including Allegro, AOS, Vincotech, and SHARP photocoupler, to offer products with complementary features. The products we carried integrate magnetic sensor chips, motor driver chips, power components, power modules, etc., to offer an extensive hardware infrastructure system design solution. The product applications focus on cloud server power suppliers, server cooling fan motor drivers, automotive power supply systems, LED lights, industrial motors, etc., targeted to broadly cover our customers' needs.
