The TLE6208-6G is a part of the Infineon Technologies portfolio, specifically a motor driver IC. It is designed for use in automotive applications, and its primary function is to control DC motors with integrated protection and diagnostics.
Package and Pin Functions:
The TLE6208-6G comes in a SSOP-24 package. Below is a detailed breakdown of all 24 pins and their functions:
Pin Number Pin Name Pin Function Description 1 VCC Supply voltage input (5V to 28V) 2 OUT1 Output 1, control signal for motor A 3 OUT2 Output 2, control signal for motor A 4 GND Ground pin for IC 5 IN1 Input 1, logic signal for motor control 6 IN2 Input 2, logic signal for motor control 7 OUT3 Output 3, control signal for motor B 8 OUT4 Output 4, control signal for motor B 9 IN3 Input 3, logic signal for motor control 10 IN4 Input 4, logic signal for motor control 11 VCC Supply voltage input (same as Pin 1) 12 OVERV Overvoltage detection pin, connected to a voltage monitoring circuit 13 RST Reset input, active-low reset signal 14 FB1 Feedback input 1, voltage feedback for motor A 15 FB2 Feedback input 2, voltage feedback for motor B 16 FSTBY Standby control input, logic high for active, low for standby 17 N.C. No connection, not used in the design 18 SENSE1 Current sense input for motor A 19 SENSE2 Current sense input for motor B 20 GND Ground pin (again, common ground for all inputs/outputs) 21 OUT5 Output 5, control signal for additional motor or component 22 OUT6 Output 6, control signal for additional motor or component 23 DIAG Diagnostic output, provides failure signal if an error occurs 24 VCC Supply voltage pin (common with Pin 1)Circuit Principle:
The TLE6208-6G works as an H-bridge motor driver capable of driving two DC motors simultaneously with individual control of each. It utilizes inputs to control the motor’s direction and speed while using feedback from current sense pins to protect against overcurrent conditions.
Motor A and Motor B: These are the two independent motor channels controlled by the IC. The motor’s speed and direction are determined by the inputs (IN1, IN2 for motor A and IN3, IN4 for motor B). The motor’s output terminals are connected to OUT1, OUT2 for motor A and OUT3, OUT4 for motor B.
Feedback and Protection: Feedback signals from FB1 and FB2 monitor the voltage levels, and the SENSE pins provide current sensing for protection. The IC has built-in overvoltage and overcurrent protection, ensuring the device operates within safe limits.
Standby and Reset: The FSTBY pin allows for entering low-power standby mode when not in use, while the RST pin can reset the IC in case of fault or at startup.
FAQ - 20 Common Questions:
What is the supply voltage range for the TLE6208-6G? The supply voltage range for the TLE6208-6G is from 5V to 28V. How many outputs does the TLE6208-6G have for motor control? The TLE6208-6G has 6 output pins, allowing control for two motors with three outputs per motor (two for the H-bridge and one for additional control). What is the function of the RST pin on the TLE6208-6G? The RST pin is used for an active-low reset of the IC, clearing any fault conditions and resetting the device. Can the TLE6208-6G be used to drive a single motor? Yes, the TLE6208-6G can drive a single motor by using only the corresponding output pins and control inputs. What is the purpose of the FB1 and FB2 pins? The FB1 and FB2 pins are feedback inputs, used to monitor the voltage level of the motor channels (Motor A and Motor B). How does the current sensing work with the TLE6208-6G? The SENSE1 and SENSE2 pins monitor the current flowing through the motors. These are critical for overcurrent protection. What happens if the motor current exceeds the rated limit? The TLE6208-6G has overcurrent protection. If the current exceeds a safe limit, the device will shut down the affected motor to prevent damage. What is the standby control input used for? The FSTBY pin is a control input that puts the IC into standby mode (low-power state) when it is not actively driving a motor. Is there a diagnostic function in the TLE6208-6G? Yes, the DIAG pin outputs a failure signal in case of an error or fault condition.How many pins are dedicated to the ground in the TLE6208-6G?
The TLE6208-6G has two ground pins (Pin 4 and Pin 20).What is the function of the OVERV pin?
The OVERV pin is used for detecting overvoltage conditions, ensuring the IC operates within its safe voltage range.Can the TLE6208-6G be used in automotive applications?
Yes, the TLE6208-6G is designed specifically for automotive applications and can handle automotive voltage ranges and protection features.What type of package is the TLE6208-6G?
The TLE6208-6G comes in an SSOP-24 package, with 24 pins in total.How do I control the direction of the motor?
The motor's direction is controlled by the IN1, IN2 pins for motor A and IN3, IN4 pins for motor B. Changing the logic level on these pins changes the rotation direction.What should I do if I notice the motor is not rotating?
Ensure the control pins (IN1-IN4) are correctly driven, and check the feedback and current sensing pins for possible faults.Is the TLE6208-6G compatible with both DC and stepper motors?
The TLE6208-6G is designed specifically for DC motors and is not intended for controlling stepper motors.What is the role of the VCC pins on the TLE6208-6G?
The VCC pins (Pins 1, 11, and 24) provide the supply voltage to the IC. They must be connected to the power source for the device to function.What is the maximum current rating for the TLE6208-6G?
The TLE6208-6G can handle up to 2.5 A of continuous current per motor channel under typical conditions.Can I use the TLE6208-6G for high-power motors?
The TLE6208-6G is suitable for medium-power DC motors. For high-power motors, consider using a device rated for higher currents and power dissipation.How can I protect the TLE6208-6G from thermal overload?
Ensure proper heat dissipation and monitor the temperature. The IC includes thermal shutdown protection, but external cooling may be necessary for higher power applications.This explanation provides the required details about the TLE6208-6G motor driver IC, including its package, pin functions, and the relevant FAQ to ensure clear understanding and proper application.
