Texas Instruments

TLVH431BQPK

Description:

The TLVH431BQPK is a high-side current sense amplifier from Texas Instruments. It is designed to measure the current flowing through a high-side shunt resistor in a wide range of applications, including motor control, battery monitoring, and power management.

Features:

1. Wide input voltage range: The TLVH431BQPK can operate with input voltages from 2.7V to 28V, making it suitable for a wide range of applications.
2. High accuracy: The device offers an accuracy of ±1.5%, which is essential for precise current measurement.
3. Low offset voltage: The low offset voltage of 150µV (typical) ensures accurate current sensing even at low current levels.
4. Wide bandwidth: The TLVH431BQPK has a bandwidth of 1MHz, allowing it to measure high-frequency current transients.
5. Programmable gain: The device features a programmable gain of 20V/V to 200V/V, enabling the user to optimize the performance for specific applications.
6. Wide operating temperature range: The TLVH431BQPK operates over a temperature range of -40°C to +125°C, making it suitable for harsh environments.
7. Small package: The device is available in a small 8-pin SOIC package, making it easy to integrate into compact designs.

Applications:

1. Motor control: The TLVH431BQPK can be used to measure the current flowing through the motor windings in brushless DC (BLDC) motors, stepper motors, and other motor control applications.
2. Battery monitoring: The device can be used to monitor the current flowing into or out of a battery, helping to estimate the state of charge and prevent over-discharge or overcharge.
3. Power management: The TLVH431BQPK can be used in power management systems to monitor the current flowing through power supplies, solar panels, and energy storage systems.
4. Lighting control: The device can be used to measure the current flowing through LED drivers and other lighting systems, enabling precise control and dimming.
5. Load detection and protection: The TLVH431BQPK can be used to detect overloads or short circuits in various applications, providing protection and fault detection.
6. Inverter and converter applications: The device can be used to monitor the current flowing through the input and output stages of inverters and converters, ensuring efficient operation and protection against fault conditions.