The CAT9532WI-T1 is a sophisticated integrated circuit from ON Semiconductor, designed to enhance the efficiency and functionality of modern electronic systems. This high-performance device is a 16-bit programmable LED driver, complete with an I2C interface, which allows for seamless integration into various applications requiring digital control of LED lighting.

Key Features

• 16-bit I/O Port Expander: The CAT9532WI-T1 offers an extensive 16-bit I/O port expander, which is ideal for managing multiple LEDs or other peripherals, significantly extending the I/O capabilities of the host processor.
• I2C Interface: With the industry-standard I2C serial interface, this device ensures easy communication with microcontrollers or other I2C compatible devices, allowing for data transfer rates of up to 400 kbps.
• Individual LED Control: Each of the 16 outputs can be individually set to ON, OFF, or blinking with programmable on/off rates, providing precise control over the lighting effects and power usage.
• Output Current Sink Capability: The CAT9532WI-T1 can sink up to 25 mA on each output, allowing direct drive of LEDs with consistent brightness and without the need for external current-limiting resistors.
• Low Standby Current: It is designed for efficient power management with a low standby current, which is crucial for battery-powered and energy-sensitive applications.
• Operating Voltage Range: The device operates within a voltage range of 2.3V to 5.5V, making it versatile for use in various system designs.

Applications

The CAT9532WI-T1 is suitable for a wide range of applications, including:

• LED status or indicator lighting
• Backlighting control for LCD displays
• Keypad backlighting for mobile devices
• Industrial control indicators
• Automotive lighting systems

Package and Reliability

Encased in a compact TSSOP-24 package, the CAT9532WI-T1 is designed to occupy minimal board space while providing robust performance. ON Semiconductor's commitment to quality ensures that this LED driver operates reliably across a broad temperature range, making it an excellent choice for both commercial and industrial applications.