ISL88012IH523Z-TK

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Power Management Integrated Circuit (PMIC) is a very important part of the energy efficient circuits nowadays. Its task is to manage the power consumption of a system or a device, transform and distribute power, and monitor the voltage and current at a variety of parts of the circuit. PMIC is able to improve power efficiency and reduce power losses. Supervisors are the members of the PMIC family. They are designed for fault protection, providing reset, supervision and control of other system components. They can sense a variety of conditions and protect the system from out of specification conditions.

The ISL88012IH523Z-TK is an advanced Supervisory IC for battery-powered and low-voltage applications. It provides very accurate reset triggering, system reset and supply monitoring. It is ideal for applications such as digital cameras, personal data assistants (PDAs), set-top boxes (STBs), cellular phones and other low voltage, battery powered applications. The ISL88012IH523Z-TK includes power-on reset (POR) circuitry, watchdog timer (WDT) reset and supervisory circuits.

The application field of the ISL88012IH523Z-TK can be easily recognized with the familiar “P” mentioned above on the top left corner of the chip. It stands for Power Management Integrated Circuit (PMIC). Therefore, ISL88012IH523Z-TK can be classified as a PMIC-Supervisors.

Energy-saving features are implemented in the ISL88012IH523Z-TK. It provides adjustable discharge current and sleep mode active current of 40 µA and 5 µA maximum respectively. Through its adjustable scale 4, 6 and 8-bit power-on reset (POR) initiative, ISL88012IH523Z-TK can detect the supply voltage and system reset under-voltage conditions. This feature makes sure the system is always stable. The ISL88012IH523Z-TK also has a programmable watchdog timer (WDT) that can generate an interrupt or reset user system. To ensure longer operation of the components and battery, the Watchdog Timer provides an idle detection feature that can be used to check an inactive system or reset applications. To provide the maximum compatibility with different devices, the ISL88012IH523Z-TK even has an adjustable low voltage reset (LVPOR) detection option.

The ISL88012IH523Z-TK is a robust, easy to use Supervisor that balances cost and performance. It is a highly cost-effective solution and provides superior fault protection in power systems. With a wide operating temperature range of -40°C to 125°C, ISL88012IH523Z-TK is able to protect the system with extreme temperature conditions. So when the ISL88012IH523Z-TK is applied, users can be ensured that their data will be protected and their system will safely operate.

The working principle of the ISL88012IH523Z-TK can be summarized as this. Firstly, it senses the supply voltage and releases reset signal when VCC reaches a programmable under-voltage threshold. Secondly, it keeps tracks of system and peripheral activity. Thirdly, it provides a watchdog timer reset for reset and interrupt. Finally, it releases reset signal when input voltage level falls below the LVPOR, or the window comparator detection.

As a summary, the ISL88012IH523Z-TK is a member of PMIC, providing utility in supervising circuit performance. It is an application specific IC with a power-on reset, watchdog timer, as well as supervisor functions that serves to protect system and data. With advanced features and a wide operating temperature range, it has become an ideal choice for various power systems that need reliable fault protection.

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