A8904SLP

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Motor Type - Stepper:	--
Motor Type - AC, DC:	Brushless DC (BLDC)
Function:	Controller - Commutation, Direction Management
Output Configuration:	Pre-Driver - Half Bridge (3)
Interface:	SPI
Technology:	CMOS, DMOS
Step Resolution:	--
Applications:	General Purpose
Current - Output:	--
Voltage - Supply:	4.5 V ~ 5.5 V
Voltage - Load:	4 V ~ 14 V
Operating Temperature:	-20°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package:	28-TSSOP-EP
Base Part Number:	A8904

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PMIC - Motor Drivers, Controllers

The A8904SLP is a versatile 5A or 10A peak, 38V maximum voltage and PWM speed DC motor controller for a wide range of applications. It is capable of providing the necessary switching and control functions for a wide variety of motor types including brushed DC, brushless DC (BLDC), and stepper motors. This highly efficient and robust device is designed for high-power automotive and commercial applications.

Application Field

The A8904SLP is suitable for a wide variety of automotive and industrial applications, including but not limited to:- Servo motors - Variable speed motors- Industrial and cordless power tools- Heating and cooling fans- Electric and gasoline powered vehicles- Automatic Doors- Solenoid actuators

Working Principle

The A8904SLP works on the principle of Pulse Width Modulation (PWM). In PWM, an output signal is created by switching the voltage source off and on in a predetermined pattern and temporal order. This on-off pattern is also known as duty cycle. The motor speed is proportional to the duty cycle, with a higher duty cycle resulting in a higher motor speed.The A8904SLP has two integrated low-side drivers, each of which controls the power to a separate motor. The drivers are designed to be driven from a high-side PWM signal and are capable of handling up to 38V and 5A or 10A peak.The current sensing and protection circuitry of the A8904SLP allows bidirectional, adjustable current limit settings which can be tuned to optimize motor performance. The integrated protection features include undervoltage-lockout, open-load-detection, short-circuit-protection, thermal-protection, and overcurrent protection.

Conclusion

The A8904SLP is a highly efficient, robust, and versatile motor controller designed for a wide variety of applications, from automotive and industrial to consumer products. It is capable of providing the necessary switching and control functions for a wide range of motors, including brushed DC, brushless DC (BLDC), and stepper motors. It is designed for high-power applications and can handle up to 38V and 5A or 10A peak. The integrated current sensing and protection circuitry allows for bidirectional, adjustable current limit settings, which can be tuned to optimize motor performance. Furthermore, the integrated features provide protection such as undervoltage-lockout, open-load-detection, short-circuit-protection, thermal-protection, and overcurrent protection.

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