AN41908A-VB Integrated Circuits (ICs)

The AN41908A-VB is a 1-channel dual brushed DC motor driver with a wide range of applications and working principles. It integrates two SLG59M1601V transistors for high power control with an IC which provide protection, current control, and PWM control. It can be used to control up to two brushed DC motors with one single IC.

This motor driver is ideal for pulse width modulation (PWM) applications, such as motor control for industrial automation equipment, home appliance, office automation, and telecommunication equipment. It has a wide operating range of 4.5V to 20V, and can operate from a 9V to 15V DC input.

The AN41908A-VB motor driver features built-in protection against overvoltage, undervoltage, short-circuits, and overcurrent. Additionally, it offers a high-efficiency power control circuit with a wide range of current regulation that can handle up to 15A per channel. It also has a PWM functiona with duty ratio of up to 99%.

The AN41908A-VB works based on a concept in which voltage and current are regulated by an external reference voltage. The reference voltage can be adjusted via an external resistor connected to the REF pin. As the external resistor is increased, the voltage and current also increase, which controls the speed of the brushed DC motor.

The AN41908A-VB motor driver also functions in a current-controlled mode for current-sensing applications such as working with a Hall Effect sensor. The driver supports a 3-phase current sensing up to 7A. Additionally, an external resistor can be connected to the REF pin to set the reference voltage for the current-sense amplifier in this mode.

The AN41908A-VB is highly reliable and features protection schemes such as thermal shutdown, overvoltage protection, undervoltage protection, and overcurrent protection. The device has a high efficiency of up to 90%, making it suitable for battery-powered applications. The device has a wide operating temperature range of -40 °C to +125 °C.

In summary, the AN41908A-VB is a1-channel dual brushed DC motor driver with a wide range of applications including motor control, current sensing, and PWM applications. It features high reliability and offers protection against overvoltage, undervoltage, short-circuits, and overcurrent. The device also offers high efficiency with up to 90%. This makes it suitable for battery-powered applications.