TLVH431BQDBZRQ1

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Power management integrated circuits (PMICs) play an important role in providing power and performance in a wide range of electronic products, from consumer gadgets and appliances to specialty embedded systems. Voltage references, one type of PMIC, are used to establish an accurate reference voltage or current, which can then be used to monitor power levels or as a reference to set other circuit operating parameters. The TLVH431BQDBZRQ1 voltage reference is an advanced example of a voltage reference IC, designed specifically to provide low current consumption and fast response times.

TLVH431BQDBZRQ1 Application Field

The TLVH431BQDBZRQ1 from Texas Instruments is intended as a low-cost, low-power replacement for precision manual adjustable linear three-terminal regulators. It is widely used in a variety of applications such as secondary cell phone power supplies, industrial computers, medical systems, video generators, instrumentation and more.

The TLVH431BQDBZRQ1 is suitable for new designs, as well as for applications that require a replacement for an adjustable voltage reference. It offers a low power consumption of only 45 μA as well as a wide operating temperature range of -40°C to +85°C. This voltage reference IC is also designed to provide very fast start-up times, thanks to its active stabilization loop.

TLVH431BQDBZRQ1 Working Principle

The TLVH431BQDBZRQ1 employs a regulated bandgap circuit to create an accurate reference voltage. This reference voltage is between 0.8 V to 1.2 V, depending on the device type. The reference voltage is the same regardless of input voltage, temperature or load current.

The voltage reference also utilizes a temperature compensation circuit. This circuit maintains a constant voltage output in the face of temperature fluctuations. The reference voltage is set by an input resistor and a feedback resistor connected to the regulation terminal. This enables users to achieve the desired voltage with a few external components.

The TLVH431BQDBZRQ1 also provides protection against over-voltage and over-temperature conditions, and the output is short-circuit-protected.

Conclusion

The TLVH431BQDBZRQ1 from Texas Instruments is a low-cost, low-power voltage reference IC. It is widely used in a variety of applications and can replace manual adjustable linear regulators. Utilizing a regulated bandgap circuit and temperature compensation, this voltage reference IC provides a stable reference voltage regardless of input voltage, temperature or load current. Additionally, it offers a low power consumption and fast start-up times.

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