REF02HSA+

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The REF02HSA+ is a low temperature coefficient voltage reference used in many kinds of application fields, and can be used as a monitor and control in the power management integrated circuit (PMIC) design process. It is an improved version of the REF02HSA monolithic device, offering higher precision, lower temperature coefficient and wide operating conditions. The REF02HSA+ also features active thermal protection that prevents device damage in case of an overload.

The REF02HSA+ is a voltage reference device that provides an accurate voltage reference for use in circuits where temperature variations or other sources of instability could cause an unwanted change in system voltages. It consists of a monolithic PNP bipolar transistor, internal capacitance and an internal voltage regulator. The reference voltage of the REF02HSA+ is determined by the combination of the PNP transistor and the capacitance. The voltage is further enhanced by the voltage regulator.

The working principle of the REF02HSA+ is based on the active bandgap technique. In this technique, the output voltage is determined by the ratio of two resistors and the transconductance of an operational amplifier. The operational amplifier is connected to an active bandgap circuit which generates a small voltage offset. This voltage offset is then amplified and buffered to create the reference voltage. The reference voltage is then compared against the input voltage and if there is a difference, the voltage is adjusted accordingly.

The REF02HSA+ can be used in a variety of applications, such as in analog controllers, low-voltage power supplies, digital-analog converters, voltage regulators, and other PMIC applications. It is capable of operating in a wide temperature range, from -40°C to +130°C. The device is also capable of providing accurate regulation in high temperature environments, up to +165°C.

The REF02HSA+ can be used in PMIC designs due to its precision and active thermal protection, which assists in avoiding excessive temperatures during operation. The device is also capable of providing a wider range of operation and is able to maintain a stable voltage reference throughout the entire design process. This helps reduce the amount of external components needed and also assists in reducing system power consumption.

The device can provide a very precise voltage reference and can be used in a variety of applications where the stability of the reference voltage is critical. The temperature coefficient of the REF02HSA+ is typically 0.01%/°C, which is one of the best available in the industry. The device also features a high output impedance and a low power supply rejection ratio, which allow for greater accuracy and a wider range of operating conditions. The REF02HSA+ is also available in a wide variety of packages, from 16-pin PDIP to 48-pin QFN.

The REF02HSA+ is a low temperature coefficient voltage reference used in many kinds of application fields and can be used as a monitor and control in the power management integrated circuit (PMIC) design process. It consists of a monolithic PNP bipolar transistor, internal capacitance and an internal voltage regulator, which is used to provide a reference voltage with accuracy, stability and temperature coefficient that are far superior to other similarly-priced devices. The working principle of the REF02HSA+ uses the active bandgap technique and provides a voltage offset that is then amplified and buffered to create the reference voltage, which is then compared against the input voltage and adjusted accordingly. The REF02HSA+ is also capable of operating in a wide temperature range and provides a stable voltage reference throughout the design process. It can be used in a variety of applications where the stability of the reference voltage is critical and is available in a wide variety of packages.

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