A3977KED-T

Step Resolution:	1, 1/2, 1/4, 1/8
Base Part Number:	A3977
Supplier Device Package:	44-PLCC (16.59x16.59)
Package / Case:	44-LCC (J-Lead)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Voltage - Load:	8 V ~ 35 V
Voltage - Supply:	3 V ~ 5.5 V
Current - Output:	2.5A
Applications:	General Purpose
Series:	--
Technology:	DMOS
Interface:	Logic
Output Configuration:	Half Bridge (4)
Function:	Driver - Fully Integrated, Control and Power Stage
Motor Type - AC, DC:	--
Motor Type - Stepper:	Bipolar
Part Status:	Obsolete
Packaging:	Tube

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The A3977KED-T controller is an integrated motor controller and driver, designed to meet the requirements of high-performance applications. It is a high-performance, versatile, and low-power motor controller/driver for 3-phase brushless DC (BLDC) motors. The A3977KED-T controller is designed for applications such as Automotive Body Control Systems (BCS), Automotive Infotainment, Lighting, Window Lift Control, Filters, and Proportional valves.The A3977KED-T is a highly sensitive controller, which enables the design of solutions with small physical size, low power consumption, and high efficiency. The A3977KED-T includes integrated current sensing, voltage sensing, and power Good flag logic functions. The current simulation feature allows the user to set temperature limits, and the maximum peak current limit ensures reliable operation. The control logic is highly flexible, allowing easy interface to any system controller.The A3977KED-T includes an integrated gate driver and an integrated full-bridge (FB) switch with a high current capacity of up to 8A. The FB switch provides a low On-resistance, low noise, and low switching losses. The PWM control logic provides both torque and speed control, making it suitable for use in applications such as in automotives, industrial automation, and motor control applications.The A3977KED-T supports two types of control logic: XOR and PWM control. In XOR control, the speed of the motor is determined by the duty cycle of the applied PWM signal. However, in PWM control, the speed is determined by the voltage applied to the PWM pin.The supply voltage range of the A3977KED-T is from 4.5V to 15V. It is capable of operating at speeds up to 60 kHz with current sensing capability of up to 8A peak. The maximum PWM frequency is 8 kHz, and the PWM signal resolution for speed control is 8 bits. The A3977KED-T is designed for use in a wide range of applications, including motor control, robotics, and household appliances.The A3977KED-T provides a range of features which make it ideal for a wide range of applications. These include direction control, PWM input, over-current protection, current sensing, and temperature monitoring. The controller also includes an integrated programmable external signal interface, which can be used to control a servo motor, or to monitor the position of a motor.The A3977KED-T is a half-bridge driver and is thus suitable for use in brushed or brushless DC motors. It can be used in applications requiring up to three phases of operation. The A3977KED-T has a wide operating temperature range of -40°C to +105°C and is RoHS compliant.In summary, the A3977KED-T is a powerful and versatile motor control and driver solution for applications requiring superior performance, small physical size, low power consumption, and high efficiency. It is designed for use in a wide range of applications, including motor control, robotics, and household appliances. The integrated features provide reliable operation and flexibility in applications such as automotive body control systems, automotives infotainment, lighting, window lift control, filters, and proportional valves.

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