ISL6257HRZ

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC - Battery Chargers

The ISL6257HRZ is a Power Management Integrated Circuit (PMIC) that is intended for battery charging applications and is a popular choice for embedded systems. This versatile chip can be configured to operate in a variety of modes, including linear charging, fast charging, and trickle charging. It is optimized for use in handheld products and other electronic devices that require a reliable, low-cost power source.

Applications

The ISL6257HRZ is suitable for single cell Lithium Ion (Li-Ion) and Polymer Li-Ion (PLiO) batteries and is designed for portable embedded systems, including smart phones, tablets, video cameras, game controllers, and other applications requiring intelligent power management. It can be used in a wide variety of charging modes, including linear, fast, and trickle charging. It can also work autonomously, making it an ideal solution for mobile devices that require low power consumption and long battery life.

Features

The ISL6257HRZ comes with a variety of features that make it well-suited for battery charging applications:

• Integrated power MOSFET driver with built-in temperature and short-circuit protection
• Detects battery voltage and current
• Integrated termination timer
• Fault detect function
• Up to four charge current settings for optimized linear charging
• Programmable fast-charge current limit
• Programmable trickle-charge voltage and current
• Trickle charging with temperature monitoring
• Dedicated pin signals for temperature alert and fault detect

Working Principle

The ISL6257HRZ is designed to provide embedded systems with an efficient, reliable, and low-cost power management solution. The chip can be configured to provide power in the linear, fast, or trickle charging mode. Depending on the charging mode, the chip can monitor the battery voltage and current, adjust the charging current, and terminate the charging process when the battery is fully charged. In addition, the chip is equipped with a fault detect feature that notifies the user when the battery voltage or current exceeds a predetermined threshold.

In linear charging mode, the chip controls the charging current by switching MOSFETs on and off. The chip monitors the battery voltage to ensure that it does not exceed the predetermined maximum voltage. When the battery voltage reaches the maximum, the chip terminates the charging process. In fast charging mode, the chip can monitor the current drawn by the battery and the on-chip MOSFETs switch to provide a continuous current. The maximum charging current is limited by an internal timer that prevents the battery from being overcharged.

In trickle charging mode, the chip continues to provide a low charging current even after the battery is fully charged. This is done to maintain the battery in a healthy "ready" state and to reduce self-discharge. Additionally, the chip maintains a low charging voltage to protect the life of the battery.

The ISL6257HRZ is a highly versatile chip that can be tailored to a wide range of battery sizes and applications. With its integrated protection features, this chip is an ideal solution for intelligent power management for handheld electronic devices.

The specific data is subject to PDF, and the above content is for reference