Overview
The ASL2416SHNY from NXP USA Inc. is a two-channel buck mode LED driver IC designed to deliver constant average DC current to LEDs, independent of the input voltage. This IC is particularly suited for automotive exterior and interior lighting applications due to its robust design and compliance with stringent automotive standards. It supports up to two output channels, allowing for the independent driving of one or two LED strings. The ASL2416SHNY offers a cost-effective solution with its flexible system design and extensive control capabilities via an SPI interface.
Key Specifications
| Parameter | Specification |
|---|---|
| Input Voltage Range | 10 V to 80 V |
| Output Voltage Range | Up to 70 V |
| Output Current per Channel | Up to 1.5 A (can be combined for higher current) |
| Number of Output Channels | 2 |
| LED Current Accuracy | ±5% over the complete operating temperature range |
| Operating Temperature Range | −40 °C to +125 °C |
| Package Type | HVQFN32 with exposed thermal pad |
| AEC-Q100 Qualification | Grade 1 qualified |
Key Features
- Hysteretic buck DC-to-DC topology for efficient LED driving
- Adjustable hysteresis to optimize external components and minimize LED current ripple
- SPI interface for extensive control and diagnostic communication with an external microcontroller
- Measurement capability to detect LED open or short circuit conditions
- Input under-voltage lockout and thermal shutdown for protection
- High LED current accuracy and programmable output current via SPI interface
- Fail silent mode in case of over-temperature or gate driver error
Applications
The ASL2416SHNY is specifically designed for automotive lighting applications, including both exterior and interior lighting. Its robust design and compliance with automotive standards make it an ideal choice for various automotive lighting systems.
Q & A
- What is the input voltage range of the ASL2416SHNY?
The input voltage range is from 10 V to 80 V.
- How many output channels does the ASL2416SHNY support?
The ASL2416SHNY supports up to two output channels.
- What is the maximum output current per channel?
The maximum output current per channel is up to 1.5 A.
- What is the operating temperature range of the ASL2416SHNY?
The operating temperature range is from −40 °C to +125 °C.
- Is the ASL2416SHNY AEC-Q100 qualified?
- What type of interface does the ASL2416SHNY use for control and diagnostics?
The ASL2416SHNY uses an SPI interface for control and diagnostics.
- Can the ASL2416SHNY detect LED open or short circuit conditions?
- What protection features does the ASL2416SHNY have?
The ASL2416SHNY has input under-voltage lockout and thermal shutdown protection.
- What is the package type of the ASL2416SHNY?
The ASL2416SHNY is housed in an HVQFN32 package with an exposed thermal pad.
- Can the output current be programmed via the SPI interface?
