TB62269FTAG,EL

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Power Management Integrated Circuits (PMICs) are devices that manage power in a variety of applications. Motor Drivers, Controllers are one of the critical components of PMICs, which control the motion of motors. TB62269FTAG,EL is a product of Toshiba Semiconductor and Storage, designed for switched capacitor DC-DC converter in smart home appliances and portable application, and suitable for wide range of motor control.

This motor controller enables cost-effective motor control with a single-chip solution. It can realize motor control with a maximum effective duty ratio of 90% and wide application range (2.7V to 5.5V operation). The maximum output power is 1.64W and the maximum output current is 400mA. By its small size and compactness, it is convenient for designing space efficient systems.

TB62269FTAG,EL consists of three main parts. Firstly, a regulated on-chip switching power supply. The power supply consists of n-channel MOSFET, switch controller, regulator, filter and control logic. A negative voltage is generated by a switched-capacitor voltage converter which is a very versatile way to generate negative voltage. Secondly, a voltage-controlled oscillator (VCO) is used to control the speed of the motor by changing the oscillation frequency. Last but not least, an amplifier and interface pads are used to control the current and voltage of the motor.

TB62269FTAG,EL is equipped with several safety measures. The on-chip bipolar diagnostics circuit can detect the over-voltage, over-current and over-temperature conditions. In addition, a frequency-response limiter is used to control the motor current. It includes an Analog-to-Digital (A/D) converter for monitoring the motor temperature and current, as well as an on-chip watchdog timer for detecting operational errors.

The logic of TB62269FTAG,EL is quite simple and straightforward. Power is supplied from the power input port to the regulator section, where it is converted to the desired voltage level. This voltage is then sent to the switch controller, which will turn on the power switch at a predetermined frequency. When the power switch is enabled, the VCO is activated and will modulate the frequency of the power switch by setting the Duty Cycle parameter. This modulated signal is then sent to the current sensing controller, which will monitor and adjust the current level to ensure that it stays within the safety limits. The current can then be output to the motor.

With its wide range of features, TB62269FTAG,EL can be applied to a variety of smart home appliances and portable applications. It is an ideal solution for controlling DC motors in these applications, as it provides a cost-effective, space-efficient solution with safety measures. Thus, it is suitable for a variety of applications that require efficient and reliable motor control.

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