ZSSC3136BE1B

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The ZSSC3136BE1B is a sensor IC that measures and implements the remaining capacity of batteries in mobile applications. It provides digital single‐channel and multi‐channel battery capacity measurements by integrating a multifunction integrator, variable gain amplifier, current sense amplifier, dual 12-bit microwave ADC (Analog-to-Digital Converter), and E2PROM memory. The ZSSC3136BE1B is particularly well-suited for mobile batteries in hand-held electronics.

The ZSSC3136BE1B IC measures the remaining capacity of a battery by monitoring the battery voltage and current. By using a switched capacitor array to integrate current over time, it can measure the total amount of discharged energy. The ZSSC3136BE1B IC then calculates the remaining capacity of the battery based on the measured discharged energy. It uses a 16-bit multipurpose integrator to integrate the battery current over time, and a variable gain amplifier allows for an adjustable gain of input current. Additionally, it includes a differential current sense amplifier with a wide gain control range, and a dual 12-bit microwave ADC to convert an analog input signal to a digital value.

The integrated E2PROM memory offers a wide range of applications, allowing the user to store various settings, parameters, and constants for automated operation. It also allows for customizing settings such as temperature compensation, voltage divider tuning, voltage averages, and more. The on-chip temperature sensor provides temperature compensation to the remaining capacity calculation algorithms.

The on-chip I/O port provides compatibility with other ICs as well as a serial communication link. It also provides an analog output voltage proportional to the remaining capacity of a battery, allowing a microcontroller to read the voltage level and determine the remaining capacity of a battery. The ZSSC3136BE1B IC also offers flexible output power management, allowing interface to switch-mode or linear regulators, as well as support for standby mode, sleep mode, and reset functions. Unique to the ZSSC3136BE1B IC is the on-chip monitoring and diagnostics system.

This diagnostic system monitors various internal functions and outputs a digital single‐channel to indicate any system malfunction. Additionally, it offers an open-drain output pin which can be used to alert other modules or processes of system errors or warnings. The ZSSC3136BE1B is an ideal solution for measuring and appraising the remaining capacity of a battery in mobile applications.

The main applications of the ZSSC3136BE1B IC are in mobile battery-powered devices. It is particularly well-suited for measuring the capacity of batteries in hand-held devices such as cell phones, PDAs, portable music players, and other mobile electronics. It is also suitable for larger battery packs used in laptop computers and other portable electronic equipment. The ZSSC3136BE1B is available in a small SOT25 package, making it highly integrated and easy to incorporate into most designs. The ZSSC3136BE1B is designed to meet the highest performance expectations and deliver reliable and accurate measurements.

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