ISL6522IVZ

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

The ISL6522IVZ is a DC/DC switch-mode power controller that provides current control with an external tri-state PWM controller. It combines the functionality of multiple integrated components with an internal DC/DC switch allowing for a greatly simplified layout. The ISL6522IVZ features integrated latch off protection, pre-biased start-up support, integrated ramp clock, cycle-by-cycle current limit, programmable blanking, output soft start, and an open load detection circuit.

This device is part of the PMIC (Power Management IC) family of integrated circuits and is a voltage regulator within the DC/DC switching controllers category. Its main application field is to provide current control in DC/DC converters, such as industrial and automotive applications and switch-mode power supplies.

The ISL6522IVZ integrates a high-side power switch and multiple fault detection functions in a single chip. It operates in a Pulse-Width Modulated (PWM) mode and requires a programmable external PWM controller, such as a microprocessor or digital controller. It also provides an open load detection circuit and a thermal shutdown feature that ensures reliability.

The ISL6522IVZ has an internal clock that can be used to set the cycle-by-cycle current limit. This internal clock operates at a frequency of 1.5MHz, which is adjustable by an external resistor. This internal clock allows the user to reduce noise within the power supply and provides a predictable control loop response.

The ISL6522IVZ is also equipped with a pre-biased start-up support feature that allows the device to power up when the input voltage is below the start-up voltage. This feature allows the device to be used in systems without a bulky bootstrap capacitor, thus reducing the system cost.

Additionally, the device is designed with advanced controlled current-limit protection for overload and short-circuit conditions. A latch-off protection feature ensures that the device is disabled in case of a short circuit or an overload. This feature will protect the device from damage. It also includes an open load detection circuit which will automatically detect when the load is disconnected. The internal ramp clock allows for a soft start that prevents large inrush currents which is beneficial for power supplies with large capacitive loads.

The ISL6522IVZ has an input voltage range of 4.5V to 24V and an output voltage range of 0V to 24V. It provides an output current of up to 3A and it is able to operate over a temperature range of -40C to 125C. It is available in a SOIC-8 package.

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