AS1123-BTST

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: Bluetooth-enabled, compact size, high efficiency
• Package: QFN (Quad Flat No-leads) package
• Essence: AS1123-BTST is a specialized IC designed for driving LEDs in various applications.
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on customer requirements.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Current Range: Up to 60mA per channel
• Number of Channels: 16
• Communication Interface: Bluetooth Low Energy (BLE)
• Dimming Control: PWM (Pulse Width Modulation)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

AS1123-BTST features a 24-pin QFN package with the following pin configuration:

1. VDD: Power supply voltage
2. GND: Ground reference
3. SDA: Serial Data Line for communication
4. SCL: Serial Clock Line for communication 5-20. OUT1-OUT16: LED output channels
5. REXT: External resistor for current setting
6. INT: Interrupt output
7. RESET: Reset input
8. VBAT: Battery voltage input

Functional Features

• Bluetooth Connectivity: AS1123-BTST integrates Bluetooth Low Energy (BLE) interface, allowing wireless control and configuration of LED lighting systems.
• High Efficiency: The IC incorporates efficient power management techniques, resulting in minimal power losses during LED operation.
• PWM Dimming Control: Precise dimming control is achieved using Pulse Width Modulation (PWM), enabling smooth and flicker-free brightness adjustment.
• Multiple Channels: With 16 output channels, the AS1123-BTST can drive a wide range of LED configurations, providing flexibility in lighting design.

Advantages and Disadvantages

Advantages: - Wireless control and configuration through Bluetooth connectivity - Compact size enables integration into space-constrained applications - High efficiency ensures optimal power utilization - Precise dimming control for smooth brightness adjustment - Multiple output channels offer versatility in LED lighting design

Disadvantages: - Limited output current per channel (up to 60mA) - Requires external resistor for current setting

Working Principles

AS1123-BTST operates by receiving commands and data via the Bluetooth interface. The received information is processed internally, and the IC generates PWM signals to control the LED output channels accordingly. The PWM signals determine the duty cycle of each channel, regulating the brightness of the connected LEDs.

Detailed Application Field Plans

AS1123-BTST finds applications in various fields, including:

1. Smart Lighting Systems: Enables wireless control and dimming of LED lights in homes, offices, and public spaces.
2. Automotive Lighting: Provides efficient and customizable LED driving solutions for automotive interior and exterior lighting.
3. Wearable Electronics: Facilitates the integration of LED indicators and displays in wearable devices, such as smartwatches and fitness trackers.
4. Signage and Display Panels: Offers precise control over LED-based signage and display panels, enhancing visual impact and energy efficiency.

Alternative Models

1. AS1130-BTST: Similar to AS1123-BTST but with additional features like integrated temperature sensor and extended number of output channels.
2. AS1115-BTST: A lower-cost alternative with reduced output channels but still offering Bluetooth connectivity and dimming control capabilities.

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