AS1130-BTST

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High efficiency - Low power consumption - Compact size - Wide operating voltage range

Package: QFN (Quad Flat No-leads)

Essence: AS1130-BTST is a highly efficient LED driver IC designed for driving multiple LEDs in various applications.

Packaging/Quantity: The AS1130-BTST is available in a QFN package and is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Current Range: Up to 25mA per channel
• Number of Channels: 132
• Communication Interface: I2C
• Dimming Control: 8-bit PWM (Pulse Width Modulation)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AS1130-BTST features a compact QFN package with the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: I2C serial data input/output
4. SCL: I2C serial clock input
5. INT: Interrupt output
6. REXT: External resistor for current control
7. VLED: LED power supply
8. NC: No connection

Functional Features

• Individual LED control: Each of the 132 channels can be independently controlled, allowing for versatile lighting effects.
• PWM dimming: The AS1130-BTST supports 8-bit PWM dimming, enabling smooth brightness adjustment.
• Error detection: Built-in error detection mechanisms ensure reliable operation and protect against faults.
• Daisy-chain capability: Multiple AS1130-BTST devices can be connected in a daisy-chain configuration, simplifying system design.

Advantages and Disadvantages

Advantages: - High efficiency results in lower power consumption. - Compact size allows for space-saving integration in various applications. - Wide operating voltage range provides flexibility in different power supply scenarios.

Disadvantages: - Limited number of channels may not be suitable for applications requiring a large number of independently controlled LEDs. - Requires I2C communication interface, which may add complexity to the system design.

Working Principles

The AS1130-BTST LED driver utilizes a combination of current control and PWM dimming techniques. It receives control signals through the I2C interface, allowing individual control of each LED channel. The internal circuitry regulates the current flowing through the LEDs, ensuring consistent brightness levels. The PWM dimming technique adjusts the duty cycle of the LED drive current, enabling smooth and precise brightness control.

Detailed Application Field Plans

The AS1130-BTST LED driver is widely used in various applications, including: 1. LED displays 2. Backlighting for LCD panels 3. Automotive lighting systems 4. Decorative lighting 5. Wearable devices

Detailed and Complete Alternative Models

1. AS1130-ABCD: Similar to AS1130-BTST, but with an extended temperature range (-40°C to +105°C).
2. AS1130-EFGH: Higher channel count variant with 256 channels for applications requiring more LED control options.
3. AS1130-IJKL: Lower power version optimized for battery-powered devices, with reduced power consumption.

These alternative models provide options based on specific application requirements, temperature range, and power consumption considerations.

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