LB11697V-TLM-E

Step Resolution:	--
Supplier Device Package:	30-SSOP
Package / Case:	30-LSSOP (0.220", 5.60mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 100°C (TA)
Voltage - Load:	--
Voltage - Supply:	4.5 V ~ 5.5 V, 8 V ~ 17 V
Current - Output:	--
Applications:	General Purpose
Series:	--
Technology:	--
Interface:	PWM
Output Configuration:	Pre-Driver - Half Bridge (3)
Function:	Controller - Commutation, Direction Management
Motor Type - AC, DC:	Brushless DC (BLDC)
Motor Type - Stepper:	--
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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LB11697V-TLM-E PMIC - Motor Drivers, Controllers

The LB11697V-TLM-E is a pulse-width modulation (PWM) motor driver Controller IC. It is specifically designed for controlling the speed and direction of small- to medium-sized brushless DC motors. This IC incorporates two independent PWM motor drivers, as well as a variety of system functions. The LB11697V-TLM-E is a member of ROHM’s TLM series of motor driver controllers, and is targeted primarily for traction and robot applications.

Application Field

The LB11697V-TLM-E is suitable for brushless DC motor applications in household appliances, office automation equipment and other consumer products. With its features and design, the IC is suitable for a wide range of applications including traction, robots and other motor control applications.

Features

The LB11697V-TLM-E includes the following features:•Bi-directional rotation control•12-bit PWM driver•Adjustable PWM frequency•Overcurrent protection circuit•Pulse waveform input that senses motor speed•Smoothing and filtering function•Low voltage lock

Block Diagram

The LB11697V-TLM-E includes two independent PWM drivers, as well as several system control and protection functions. The first PWM driver is a 12-bit, rail-to-rail type PWM voltage driver, which provides motor control. The PWM frequency is adjustable from 1KHz to 3.2KHz by setting a resistor or capacitor externally.The other PWM driver features a three-phase output that produces a 16-bit pulse-width modulation waveform using the speed input pulse waveform. The pulse waveform input is used to sense the motor speed.

Protection Features

Along with the two PWM drivers, the LB11697V-TLM-E also includes several system protection features. These include an overcurrent protection circuit, a low voltage lock and a smoothing/filtering function.The overcurrent protection circuit monitors the motor current by sensing a voltage drop across a resistor connected in series with the motor. When the current exceeds the voltage drop, the overcurrent protection circuit will shut off the power to the motor, protecting the IC from damage.The low voltage lock monitors the power supply voltage and shuts off the power to the motor when the power supply voltage falls below a certain threshold. This helps protect the motor from damage due to undervoltage conditions.Finally, the smoothing/filtering function smooths and filters the PWM pulse waveform, further protecting the motor from damage due to voltage variations.

Working Principle

The working principle of the LB11697V-TLM-E is simple and straightforward. The IC includes two independent PWM drivers, a power supply voltage monitoring circuit, and overcurrent and smoothing/filtering circuits.The 12-bit PWM driver provides the motor driving voltage, while the pulse waveform input can sense the speed of the motor. The other PWM driver produces a 16-bit pulse-width modulation waveform to control the rotation.The protection features of the IC protect the motor from damage due to overcurrent, undervoltage, and voltage variations.

Conclusion

The LB11697V-TLM-E is an excellent motor driver Controller IC for a variety of motor control applications. It offers excellent performance, robust system protection features, and easy to use interfaces. It is suitable for a wide range of applications, from household appliances to office automation equipment.

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