LTC2924CGN#PBF

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LTC2924CGN#PBF is actually a low-power CMOS voltage/temperature Monitoring IC from Linear Technology Corporation that comes in a LGA package. It is a power management integrated circuit (PMIC) designed for monitoring DC input voltage, temperature and other system parameters, primarily for portable or embedded devices. It comes with power supply controllers, monitors and other digital signal processing devices, making it an ideal candidate for various real-time applications.

Overview

The LTC2924CGN#PBF provides a wide range of monitoring functions for DC input power or temperature by implementing integrated digital signal processing devices to get the temperature, voltage, current and other system parameters. This device can also be used in battery-operated applications to assess the system\'s power and temperature performance.

It can also monitor over a large range of temperatures and voltage inputs while also providing quick alert signals when there is a fault. Additionally, it also offers a lockout feature which can be used to protect the system from too high or too low temperatures or voltages.

Pins and Configuration

The LTC2924CGN#PBF features a 28-pin LGA (Land Grid Array) package, with 8 input/output pins, 10 operating pins, 8 monitoring pins and 2 reference pins. Its pins are also organized into four rows of seven pins each.

Apart from the pins, the device also has a number of configuration registers which provide additional features such as remote temperature sensing, temperature fault detection and system temperature control. The configuration registers also allow users to customize the device to their specific application requirements.

Tank Circuit and Oscillator

The tank circuit works in conjunction with the integrated oscillator to accurately measure the temperature and voltage inputs. The oscillator is used to generate a square-wave signal with a high frequency (1 kHz) and a duration of 10 µs. This signal is then fed into the tank circuit which then converts it into a sinusoidal waveform.

The amplitude of this sinusoidal waveform determines the temperature and voltage inputs being monitored by the LTC2924CGN#PBF. These inputs are then compared against the reference values programmed in the configuration registers. If the monitored temperature or voltage inputs exceed the reference values, then an alert signal is generated.

Interrupt Output and Fault Detection

The LTC2924CGN#PBF features an interrupt output which can be used to generate an alert signal whenever the monitored temperature and voltage exceed the reference values. This interrupt also has a separate enable bit that can be utilized to trigger an input/output pin separate from the interrupt output.

In addition to the interrupt output, the device also features an integrated fault detection circuit. This circuit is utilized to detect any faults that may arise in the system, such as a short or open circuit. Whenever the fault detection circuit is triggered, the appropriate alert signal is generated.

Conclusion

The LTC2924CGN#PBF is a low-power CMOS voltage/temperature monitoring IC from Linear Technology Corporation that comes in a LGA package. It is a PMIC designed for monitoring DC input voltage, temperature and other system parameters, primarily for portable or embedded devices. It comes with power supply controllers, monitors and other digital signal processing devices, making it an ideal candidate for various real-time applications.

The device features an interrupt output and fault detection circuit which can be used to generate an alert signal whenever the monitored temperature or voltage exceeds the reference values. It also features a tank circuit and oscillator which work in conjunction to accurately measure the temperature and voltage inputs. Overall, the LTC2924CGN#PBF is a highly capable device that can be used for monitoring various DC input parameters, making it a great choice for portable or embedded real-time applications.

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