TB6633AFNG,EL

Step Resolution:	--
Supplier Device Package:	24-SSOP
Package / Case:	24-LSSOP (0.220", 5.60mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Voltage - Load:	5.5 V ~ 22 V
Voltage - Supply:	5.5 V ~ 22 V
Current - Output:	1A
Applications:	General Purpose
Series:	--
Technology:	Power MOSFET
Interface:	Analog
Output Configuration:	Half Bridge (3)
Function:	Driver - Fully Integrated, Control and Power Stage
Motor Type - AC, DC:	Brushless DC (BLDC)
Motor Type - Stepper:	--
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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TB6633AFNG,EL - PMIC - Motor Drivers, Controllers

The TB6633AFNG,EL series is a high-performance, low-voltage step-down motor driver IC designed for precision control of small- to medium-sized motors. It features a one-time programmable (OTP) channel selection, a programmable dead time frequency and a wide range of current monitoring and protection features. This digital control motor driver is commonly used in automotive and industrial applications where precise motor control is required.

Features

The TB6633AFNG,EL series includes two motor drivers, TB6633AFNG and TB6633EL, with a broader range of current rating options than previous devices. The TB6633AFNG can deliver up to 2A peak output and the TB6633EL can deliver up to 6A peak output. Both devices feature independently programmable current limit, over-voltage protection, under-voltage protection, over-temperature protection, thermal overload protection and fast-start protection. The built-in Advanced Diagnostics feature provides useful diagnostic information like open-loop, current limit, dead time, over-voltage and temperature information.

Applications

The TB6633AFNG,EL series is suitable for a wide range of applications, including motors used in automotive and industrial applications, such as robotic arm, automated card entry systems, smart lock systems, automotive HVAC, small motor drive control, and automatic moving parts. They are particularly well suited to applications where precise motor control is required and where reliability and ruggedness are important.

Working Principle

The TB6633AFNG,EL series uses a field-oriented control (FOC) system to precise controlling of motors. FOC is a digital technique that allows for the precise control of brushless motors by providing precise control of the current and torque applied to the motor. It can provide precise current control and torque control over the entire speed range, as well as precise control of the motor speed up to its maximum rated speed. The TB6633AFNG,EL series also features a programmable dead time frequency, which is used to reduce current leakage when switching between positive and negative phases of the input current. This feature helps increase system efficiency and reduces electromagnetic interference (EMI) for better overall performance.

Conclusion

The TB6633AFNG,EL series of motor drivers are an excellent choice for applications requiring precise control of small- to medium-sized motors. They offer wide current rating options, a wide range of protection features, and the ability to precisely control the motor current and torque over the entire speed range. The programmable dead time frequency helps reduce current leakage and EMI for better overall performance.

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