Overview
The CAT9532YI-T2 is a 16-bit programmable LED dimmer produced by onsemi. This device is designed to provide a simple and efficient solution for controlling and dimming LEDs in various applications. It features an I2C compatible serial interface, allowing for easy integration into systems that require precise LED control. The CAT9532YI-T2 can drive 16 LEDs directly and supports 256 brightness steps, making it suitable for backlight and color mixing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Product Name | CAT9532YI-T2 |
| Product Classification | LED Drivers |
| RoHS Compliance | Yes |
| Power-Supply Voltage | 2.3V to 5.5V |
| Maximum Power Current | 550 μA |
| Number of Segments | 16 |
| Package | 24-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | -40°C to 85°C |
| Current per I/O | 25 mA |
| Total Current | 400 mA |
| I2C Clock Frequency | 100 kHz to 400 kHz |
Key Features
- I2C Interface: Compatible with I2C and SMBus protocols, allowing for efficient communication and control.
- LED Dimming: Supports 256 brightness steps for each of the 16 LED outputs, enabling precise dimming control.
- Blinking Capability: Each LED can be programmed to blink at one of two programmable rates.
- General Purpose I/Os: The LED driver outputs can also be used as general purpose parallel input/output pins when not controlling LEDs.
- Internal Oscillator and PWM Signals: Includes an internal oscillator and two PWM signals to drive the LED outputs, allowing for programmable period and duty cycle.
- Power-On Reset (POR): Protects the internal logic against powering up in the wrong state.
- External Reset Input: Active low reset input to initialize the device's internal registers and I2C state machine.
Applications
- Backlight Control: Ideal for controlling backlight LEDs in displays and other lighting applications.
- Color Mixing: Suitable for applications requiring color mixing, such as in LED lighting systems.
- Industrial Automation: Can be used in industrial automation systems where precise LED control is necessary.
- Consumer Electronics: Applicable in consumer electronics such as TVs, monitors, and other display devices.
Q & A
- What is the CAT9532YI-T2 used for?
The CAT9532YI-T2 is a 16-bit programmable LED dimmer used for controlling and dimming LEDs in various applications.
- What is the operating voltage range of the CAT9532YI-T2?
The operating voltage range is from 2.3V to 5.5V.
- How many LEDs can the CAT9532YI-T2 drive directly?
The CAT9532YI-T2 can drive 16 LEDs directly.
- What is the maximum current per I/O?
The maximum current per I/O is 25 mA.
- What is the total maximum current for all I/Os?
The total maximum current for all I/Os is 400 mA.
- Does the CAT9532YI-T2 support I2C and SMBus protocols?
Yes, it is compatible with both I2C and SMBus protocols.
- What is the range of brightness steps supported by the CAT9532YI-T2?
The device supports 256 brightness steps for each LED output.
- Can the LED outputs be used as general purpose I/Os?
Yes, the LED driver outputs can also be used as general purpose parallel input/output pins when not controlling LEDs.
- Does the CAT9532YI-T2 have an internal oscillator and PWM signals?
Yes, it includes an internal oscillator and two PWM signals to drive the LED outputs.
- What is the operating temperature range of the CAT9532YI-T2?
The operating temperature range is from -40°C to 85°C.
