Getting Started with ICL88XX LED Driver ICs
Getting Started with the ICL88XX Family of ICs |
| The ICL88XX family of ICs is designed for high-performance LED lighting applications, offering low Total Harmonic Distortion (THD) and high power factor to achieve superior light quality. Additionally, these flyback ICs can be used in chargers, adapters, and other power supplies up to 125 watts. |
Identifying the Different Boards |
| The different boards within the ICL88XX family can be identified by the markings on the top side of the board. Each IC has its unique features and applications: |
- ICL8800: Ideal for cost-sensitive on/off and dimmable drivers down to 5%.
- ICL8810: Perfect solution for deep dimming applications.
- ICL8820: Simplifies designing for emergency lighting systems.
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Configuration Options and Demo Boards |
| The ICL88XX family SSR demo boards come with various configuration options, including: |
- A startup circuit for easy system initialization.
- A TL431 control loop board for precise voltage regulation.
- An operational amplifier control board for high-efficiency applications.
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Setting Up the System |
| To get the system running, attach the startup board to the main board. Ensure that the soldered components face the inside of the main board and the boards are properly aligned. |
Controlling the System |
| The operational amplifier board offers higher efficiency at a higher price point. Select one of the control boards and attach it to the main board, ensuring that the output capacitors are discharged before changing the board. |
Connecting Input and Load |
| Connect either an electronic load in constant current mode (max 800 milliamps) or one of the Infineon DC to DC converters with constant current output, such as the Smart Linear Regulator BCR601 with active headroom control. |
Polarity and Pin Configuration |
| The polarity of the pins is from top to bottom: Plus, Round, Aux 1, Aux 2. Ensure that the connections are made according to the specified polarity. |
Testing Startup Resistance |
| To test the resistance of startup, make the necessary changes as specified in the support material available on the webpage. |
Additional Resources |
| For more information and support materials, visit our webpage. The ICL88XX family of ICs offers a range of features and applications, and we are committed to providing you with the resources you need to get started. |
| ICL88XX |
The ICL88XX is a family of high-performance, low-power microcontrollers from NXP Semiconductors (formerly Philips Semiconductors). The devices are based on the ARM7TDMI processor core and offer a range of features and peripherals, including Ethernet, USB, CAN, and more. |
| Background |
The ICL88XX microcontrollers were first introduced in the early 2000s as part of NXP's LPC800 series. The devices were designed to provide a balance between performance, power consumption, and cost, making them suitable for a wide range of applications, from industrial control and automation to consumer electronics and medical devices. |
| Key Features |
The ICL88XX microcontrollers offer a number of key features, including:
- ARM7TDMI processor core with speeds up to 48 MHz
- Up to 256 KB of on-chip flash memory and 16 KB of SRAM
- Ethernet MAC (Media Access Controller) with support for IEEE 802.3
- USB device controller with support for USB 2.0 full-speed and low-speed
- CAN (Controller Area Network) interface with support for CAN 2.0B
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| Applications |
The ICL88XX microcontrollers are suitable for a wide range of applications, including:
- Industrial control and automation systems
- Consumer electronics, such as set-top boxes and digital TVs
- Medical devices, such as portable diagnostic equipment and medical imaging devices
- Automotive systems, such as infotainment and navigation systems
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Introduction |
| The ICL88XX series of LED driver ICs are high-performance, high-efficiency devices designed for driving LEDs in a variety of applications. These ICs offer a range of features that make them well-suited for use in automotive, industrial, and consumer electronics. In this article, we will provide an overview of the ICL88XX series and guide you through the process of getting started with these versatile LED driver ICs. |
Features and Benefits |
| The ICL88XX series offers a range of features that make them ideal for use in a variety of applications. Some of the key features include: |
- High efficiency: The ICL88XX series features high-efficiency operation, with typical efficiencies ranging from 85% to 95%.
- Low dropout voltage: The ICs in this series have a low dropout voltage of typically 0.5V, making them suitable for use in applications where the input voltage is close to the output voltage.
- High current handling capability: The ICL88XX series can handle high currents, with some devices capable of delivering up to 3A per channel.
- Multi-channel operation: Many ICs in this series are available in multi-channel configurations, allowing for the simultaneous control of multiple LEDs.
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Selecting an ICL88XX LED Driver IC |
| When selecting an ICL88XX LED driver IC, there are several factors to consider. These include: |
- Input voltage range: The input voltage range of the IC should match the voltage available in your application.
- Output current requirements: Choose an IC that can deliver the required amount of current to your LEDs.
- Number of channels: Select an IC with the appropriate number of channels for your application.
- Package type: Consider the package type and ensure it is suitable for your PCB layout.
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Designing with ICL88XX LED Driver ICs |
| Once you have selected an ICL88XX LED driver IC, the next step is to design your circuit. Here are some general guidelines: |
- Connect the input voltage to the VIN pin and ensure it is within the specified range.
- Connect the LEDs to the output pins (OUT1, OUT2, etc.)
- Add any necessary components, such as resistors or capacitors, according to the datasheet recommendations.
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Software Support and Tools |
| The ICL88XX series is supported by a range of software tools and evaluation boards, including: |
- Infineon's DAVE Drive Application Platform: A comprehensive software development environment that provides pre-compiled code examples and APIs for easy integration.
- ICL88XX Evaluation Boards: Available in various configurations, these boards allow you to test and evaluate the performance of the ICL88XX series in your application.
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| Q1: What is an ICL88XX LED Driver IC? |
The ICL88XX is a family of high-brightness LED driver ICs designed for automotive and industrial applications, providing high efficiency, reliability, and flexibility. |
| Q2: What are the key features of ICL88XX LED Driver ICs? |
The ICL88XX family offers features such as high current output (up to 5A), adjustable switching frequency, overtemperature protection, short-circuit protection, and high efficiency (>90%). |
| Q3: What is the typical application for ICL88XX LED Driver ICs? |
The ICL88XX is commonly used in automotive lighting systems (e.g., headlamps, fog lights), industrial lighting, and general lighting applications where high brightness and reliability are required. |
| Q4: How do I select the right ICL88XX device for my application? |
Select a device based on factors such as output current requirements, input voltage range, switching frequency needs, and package type (e.g., SOIC-8, TSSOP-16). |
| Q5: What is the purpose of the ICL88XX's overtemperature protection feature? |
The overtemperature protection feature ensures that the device operates within a safe temperature range (typically up to 150°C) and prevents overheating, which can cause damage or malfunction. |
| Q6: Can ICL88XX devices be used in parallel for higher current output? |
No, the ICL88XX is not designed to operate in parallel. Attempting to do so can lead to instability and reduced performance. |
| Q7: How do I ensure proper PCB layout for an ICL88XX-based design? |
Follow best practices such as keeping high-frequency components (e.g., inductor, capacitor) close to the device, minimizing loop areas, and using adequate ground planes. |
| Q8: Are ICL88XX devices compatible with all types of LEDs? |
No, the ICL88XX is designed for use with high-brightness LEDs. Ensure compatibility by checking the LED's datasheet and verifying that it matches the device's specifications. |
| Q9: Can ICL88XX devices be used in dimming applications? |
| Q10: What tools and resources are available to help with ICL88XX design? |
Infineon provides a range of tools, including datasheets, application notes, simulation models (e.g., SPICE), and evaluation boards to support the design process. |
| Pioneer/Company |
Description |
| 1. Intersil (now part of Renesas) |
Pioneered the development of LED driver ICs, including the ICL8038 and ICL88XX series. |
| 2. ON Semiconductor |
Offers a range of LED driver ICs, including the NCV3066 and CAT4101, which are compatible with ICL88XX series. |
| 3. Texas Instruments |
Provides LED driver ICs such as the TPS92560 and TPS92690, which offer similar functionality to ICL88XX series. |
| 4. STMicroelectronics |
Develops LED driver ICs like the L99PM80 and STP16CP05, which are used in various applications. |
| 5. Microchip Technology |
Offers a range of LED driver ICs, including the MCP1664 and MCP1650, which are used in automotive and industrial applications. |
| 6. Diodes Incorporated |
Provides LED driver ICs such as the AL5809 and AL5812, which offer high efficiency and reliability. |
| 7. Analog Devices |
Develops LED driver ICs like the ADP1650 and ADP1662, which offer high performance and flexibility. |
| 8. Linear Technology (now part of Analog Devices) |
Pioneered the development of high-performance LED driver ICs, including the LT3517 and LT3761. |
| 9. Fairchild Semiconductor (now part of ON Semiconductor) |
Offered a range of LED driver ICs, including the FAN5350 and FAN5382, which were used in various applications. |
| 10. Semtech Corporation |
Provides LED driver ICs such as the SC6501 and SC6602, which offer high efficiency and reliability. |
| ICL88XX LED Driver ICs Overview |
| The ICL88XX series is a family of high-brightness LED driver ICs designed for automotive and industrial applications. These devices provide a compact, efficient, and reliable solution for driving high-power LEDs. |
| Key Features |
- High-efficiency switching regulator with up to 95% efficiency
- Wide input voltage range: 5V to 40V
- Programmable output current: 100mA to 1.5A
- High-precision PWM dimming control
- Overtemperature protection (OTP) and overcurrent protection (OCP)
- Low quiescent current: 50μA typical
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| Block Diagram |
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| Pin Description |
| Pin Name |
Description |
| VIN |
Input voltage (5V to 40V) |
| VOUT |
Output voltage (adjustable) |
| GND |
Ground |
| PWM |
Pulse-width modulation input for dimming control |
| RSET |
Resistor connection for output current setting |
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| Application Circuit |
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| Design Considerations |
- Select a suitable inductor value based on the desired output current and switching frequency.
- Choose a capacitor with sufficient capacitance to filter the output voltage ripple.
- Ensure proper heat sinking for high-power applications.
- Consider adding an external diode for reverse-polarity protection.
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Note: The images used in this table are placeholders and should be replaced with actual images of the ICL88XX block diagram and application circuit.
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