AH9485/86 1ɸ SMART DC MOTOR DRIVER

 

Machines incorporate generators and motors which are still widely used in a variety of systems to this day, generators and motors require proper mechanisms to operate thus mitigating any damage or loss. Systems of DC Machines have been frequently used in applications requiring a wide range of precise control of both motor output and motor speeds. Despite the development of solid-state ac drive systems DC Machines still represent significant value through both their versatility and simplicity.

A motor driver is required to start a DC motor when utilizing Bluetooth, microcontrollers, or any other wireless system. These systems usually operate on a current of a few amperes while motors especially DC require certain high amperes of current which is needed to be provided by some external source. The purpose of a motor driver is to amplify the current being provided by the aforementioned low amps systems to drive the motor smoothly. In other words, motor drivers act as an interface between motors, and control circuits automatically adjusting the firing angle to maintain the speed constantly at various loads via feedback. If the speed exceeds the reference speed being set, the firing angle is adjusted as advanced and vice versa. This signal is extracted from the tacho-generator integrated into this chip. 


 

AH9485/86 could be a suitable choice for such mechanisms as it not only does it drive the motor effectively but also incorporates a Hall Effect sensor in a single chip to make the achievable also feasible. It is quite handy in PCB designing.

AH9485/86 is a 6-pin, TSOT26F packaged with a minimum width of 3.75 mm. It is accredited to Diodes Incorporated, an American-based high-quality semiconductor manufacturer. Operating at a low voltage supply of just 2 Volts and performs at its best at no more than 6 Volts. The AH9485/86 is both unique and smart utilized to drive single-phase brush less DC Motors. AH9485/86 incorporates exciting functions to avoid overheating the motor a built-in open-drain tachometer rotation detection and function generator terminals aids in smart monitoring observing motor speed, rotation, or locks. Rotation detection is responsible to check rotor status while the function generator observes magnetic frequency. Another electrifying function is its ability to reduce noise-causing parameters by using the soft-switching technique at the output stage. EMI (electromagnetic interference) and the vibration is reduced to a substantial level. Moreover, pin numbered 5 is dedicated to PWM to control the speed of the motor as well as an over-temperature indicator and shutdown response protecting the machinery from melting and thermal damage.

DC Motors serve a wide variety of applications and this driver can be effectively used to drive micro motors, blowers, VGA DC fans, BLDC motors, and cooling fans. Feel open to contact Amaxchip for high quality drivers at a reasonable price. Amaxchip is an Electronic Distributors and electronic components distributors

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