AD537SD/883B Integrated Circuits (ICs)

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Voltage to Frequency
Frequency - Max:	100kHz
Full Scale:	±30ppm/°C
Linearity:	±0.05%
Mounting Type:	Through Hole
Package / Case:	14-CDIP (0.300", 7.62mm)
Supplier Device Package:	14-CDIP
Base Part Number:	AD537

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PMIC - V/F and F/V Converters

The AD537SD/883B V/F and F/V converter is a type of power management integrated circuit (PMIC) that can convert voltage potential to frequency or frequency to voltage with the purpose of controlling power output. The AD537SD/883B is an alternate version of the standard AD537 line, offering a differential output and input design with power optimization via synchronization with frequencies of 50-300kHz.

Applications

The AD537SD/883B has many applications, primarily in the realm of power control and management. It is widely used in applications requiring precise power management, such as AC-to-DC or DC-to-DC converters, for precise control, stability, and low RFI generated output. It can be used for precise voltage and current control, switching, trimming, and regulation in grid-connected inverter applications. It is widely used in multi-phase motor drivers, lighting control, motor speed control, VRM power supplies, solar inverters, and various other industrial control settings.

Working Principle

The operation of the AD537SD/883B is based on the conversion of voltage to frequency or frequency to voltage, depending on the input and output signals. The converter works as a frequency divider where the input voltage is divided down to a specific frequency or as a variable frequency oscillator in which a variable frequency signal is produced based on the input voltage. The overall performance and accuracy of the device is largely determined by the precision of the control voltage and the temperature of the chip.The AD537SD/883B contains an on-chip voltage regulator to operate the divider or oscillator circuit and provide stable power. It also contains a low-noise analog switch, comparator-based power switch, high-precision voltage reference, and temperature detector. All the components work together to provide a precise input -> output conversion ratio and greater control accuracy. The device provides a low-noise, low-ripple output voltage and maintains accuracy even at high switching frequencies up to 300kHz.The device is also designed for stability and reliability. The input voltage is typically limited to 25V maximum, and the output loop is designed for higher stability. The device can also support synchronous switching for improved efficiency, accuracy, and performance.

Conclusion

The AD537SD/883B is a versatile integrated circuit designed for precise control of voltage and frequency. It provides reliable power management and precise input -> output conversion with high accuracy and low power consumption. With its range of applications and broad frequency range, it is an ideal choice for many power control and management applications.

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