ISL32740EIAZ-T7A Integrated Circuits (ICs)

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 ISL32740EIAZ-T7A is a single-channel, fully integrated LED driver with both current sinking and sourcing. It is designed to drive LED loads with dimming capabilities in handheld, battery-powered devices. This chip employs a highly efficient, easy-to-use dimming input technique, consisting of a variable brightness level, a PWM signal, or an enable signal for ON/OFF control. The ISL32740EIAZ-T7A is specifically designed for low-voltage applications and features a wide input voltage operating range, making it ideal for 1-cell Lithium-Ion battery powered systems.

The ISL32740EIAZ-T7A is classified as an interface - Drivers, Receivers, Transceivers, suitable for as driving and controlling LED lights in small portable products, such as medical equipment, small toys, and other handheld electronic products. In these devices, the ISL32740EIAZ-T7A can control power consumption by dimming the LED lights, thus, prolonging battery life significantly.

The ISL32740EIAZ-T7A is designed in such a way that its maximum is able to support a direct source/sunk current of up to 85mA, with a ±5V adjustable voltage range, and -40°C to +85°C maximum ambient temperature. It incorporates a clock signal generator and a bias regulator in one single chip, which greatly simplifies design complexity and reduces component count. Furthermore, this chip offers a low shutdown current of 10µA and a discontinuous conduction mode of operating at low peak currents.

The block diagram of the ISL32740EIAZ-T7A consists of a control logic block, clock signal generator, voltage regulator, LED driver, and analog loop control. The control logic block provides the logic for LED on/off control and LED dimming output control. The clock signal generator receives an external clock signal from the system and generates an internal clock. The voltage regulator regulates an adjustable input voltage (from 1V to 6V), and the LED driver block converts the regulated voltage into current to each LED. Finally, the analog loop control provides the control signal to the LED driver to achieve the desired LED current level.

Due to its simplicity and ease of use, the ISL32740EIAZ-T7A is the ideal choice for driving and controlling single-channel LEDs with dimming capabilities in portable, battery-powered products. It is cost-effective and highly efficient, offering a wide range of features that greatly reduce design complexity, reduce system power consumption, and improve battery life.

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