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NXP Semiconductors ASL5108SHV/0Y
- Part No.:
- ASL5108SHV/0Y
- Manufacturer:
- NXP Semiconductors
- Category:
- LED Drivers
- Package:
- 48-LQFP Exposed Pad
- Datasheet:
-
ASL5108SHV/0Y.pdf
- Description:
- IC LED DRVR CTRLR PWM 48HLQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,030
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Product details
Overview
ASL5108SHV from NXP Semiconductors is a Matrix LED Controller (MLC) designed for automotive exterior lighting systems requiring precise, scalable, and fault-resilient LED segment control. It delivers 12-channel direct PWM dimming at 12-bit resolution, supports up to 12 LEDs/segments with 57 V string voltage capability, and operates across –40 °C to +125 °C ambient temperature. Its HLQFP48 package enables high-density IMS PCB placement near LEDs for thermal and EMI optimization.
For engineers reviewing the ASL5108SHV datasheet, ASL5108SHV pinout, ASL5108SHV application, or ASL5108SHV equivalent, this device is selected for ADB/GFHB headlamp systems where deterministic timing, CAN-based multi-IC coordination, and per-channel open/short diagnostics are critical design requirements.
Technical Context
The ASL5108SHV implements a direct PWM control architecture: the host microcontroller must supply updated 12-bit PWM duty cycle values for each of its 12 output channels on every system cycle, with no internal curve generation. All 12 switches are grouped into four configurable blocks of three, each block floating up to 60 V relative to ground and paralleling-capable for higher current drive.
It integrates a 200 MHz internal oscillator for clock generation-trimmable via CAN messages to <0.25 % accuracy-eliminating external quartz and reducing EMC susceptibility. Diagnostics include 6-bit NTC input for LED temperature monitoring, identification resistor input for PCB characterization, and 9-bit junction temperature feedback over CAN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | 12 independent LED switch outputs, arranged in 4 blocks of 3 configurable switches |
| Max Switch Current | 0.8 A per channel - defines maximum continuous LED string current without derating |
| PWM Resolution | 12-bit - enables 4096-step dimming granularity for smooth, glitch-free light transitions |
| Supply Voltage | 5 V ± 0.5 V (Vcc) - requires tightly regulated automotive 5 V rail; includes under-voltage protection |
| Operating Temp | –40 °C to +125 °C ambient - qualified for under-hood and headlamp module environments |
| Junction Temp Limit | 175 °C - sets thermal shutdown threshold for sustained operation under load |
| Interface Protocol | CAN 2.0B - supports up to 32 MLCs on one bus; enables broadcast messaging to reduce latency |
Pinout & Package
The ASL5108SHV is housed in an automotive-qualified, thermally enhanced 48-pin HLQFP package (SOT1571-1), with exposed thermal pad for efficient heat dissipation in IMS PCB layouts. Pin assignment is optimized to avoid track crossing, enabling single-layer routing near LEDs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | 5 V ± 0.5 V main supply; powers internal logic, drivers, and CAN interface |
| GND | Ground reference | Common return for power, analog sensing, and digital I/O; connects to thermal pad |
| CANH / CANL | CAN differential bus interface | High-speed serial control link; supports up to 32 devices on one network |
| NTC_IN | Analog temperature sensor input | 6-bit resolution NTC monitoring for real-time LED thermal compensation |
| ID_RES | PCB identification resistor input | Enables automatic board variant recognition during initialization |
| OUT0–OUT11 | LED driver outputs | 12 high-side switches with 200 mΩ Rdson; each drives one LED segment up to 0.8 A |
| POK | Power OK status flag | Open-drain output confirming stable internal voltage regulation and functional readiness |
Key Features
| Feature | Design Value |
|---|---|
| Direct PWM mode | Host MCU supplies full 12-bit PWM value per channel per cycle - eliminates internal polynomial computation overhead and enables fully dynamic dimming profiles |
| LED brightness variation correction | Per-channel current trimming compensates for luminance mismatch across LEDs driven at identical nominal current |
| Integrated 200 MHz oscillator | Eliminates external crystal, reduces BOM cost and PCB area, improves EMC robustness, and enables CAN-trimmed <0.25 % clock accuracy |
| Comprehensive diagnostics | Single LED open/short detection with bypass, internal junction temp monitoring (9-bit), charge pump failure detection, and illegal command flagging over CAN |
| Limp Home Mode (LHM) | Internally programmed fallback behavior upon CAN communication loss - maintains safe illumination state without MCU intervention |
Applications
| Matrix High Beam (ADB) | Dynamic Rear Lighting |
|---|---|
Use Scenario: Adaptive driving beam system that selectively blanks LED segments to avoid glare while maintaining full illumination around vehicles. IC Role / Device Role / Timing Role: ASL5108SHV acts as the final-stage LED segment driver, receiving real-time mask commands via CAN and executing precise 12-bit PWM dimming per pixel. Use Value: Enables sub-100 ms response to camera-based object detection, with per-segment open-circuit protection ensuring partial functionality during fault conditions. |
Use Scenario: Brake, turn, and hazard signals that animate across multiple LED clusters using programmable sequences. IC Role / Device Role / Timing Role: ASL5108SHV provides synchronized, flicker-free dimming across 12 independently controlled rear segments via broadcast CAN messages. Use Value: Eliminates MCU bandwidth bottlenecks by offloading timing-critical PWM updates to local hardware, supporting >200 Hz animation frame rates. |
| Dynamic Cornering Lights | Welcoming/Ambient Lighting |
Use Scenario: Front lighting system that activates additional LED segments during low-speed turns to illuminate curb-side roadway. IC Role / Device Role / Timing Role: ASL5108SHV receives steering angle and vehicle speed data over CAN and drives dedicated cornering segments with calibrated intensity ramping. Use Value: Uses internal LHM to maintain minimum cornering illumination if CAN fails, meeting ISO 26262 ASIL-B functional safety expectations. |
Use Scenario: Entry/exit lighting sequences activated by door handle sensors or key fob proximity. IC Role / Device Role / Timing Role: ASL5108SHV executes preloaded soft-start/soft-stop dimming curves across multiple zones using direct PWM updates from body controller. Use Value: Achieves perceptually smooth transitions (<1% visible stepping) via 12-bit resolution, even at ultra-low currents (<10 mA per segment). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar matrix LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ASL5108SHN | HVQFN36 package (SOT1092-4); same 0.8 A direct PWM functionality and CAN interface | Better thermal performance on IMS PCBs with limited layer count; smaller footprint but lower power dissipation margin | Select when board space is constrained and thermal management uses metal-core substrate |
| ASL5115SHV | Same HLQFP48 package but rated for 1.5 A per switch; 100 mΩ Rdson vs. 200 mΩ | Supports higher-current LED strings without external boosters; requires higher gate drive current and larger heatsinking | Select when driving high-luminance segments (>1 A) or operating at elevated ambient temperatures (>105 °C) |
Compared with ASL5108SHN, the ASL5108SHV offers superior thermal dissipation in HLQFP48 for sustained 0.8 A operation; compared with ASL5115SHV, it reduces conduction losses and layout complexity where 0.8 A suffices-enabling cost-optimized ADB modules with validated safety margins.
Availability
ASL5108SHV is available at Aetrix Electronics and suitable for automotive exterior lighting, adaptive beam control, and dynamic signaling applications requiring stable component supply, AEC-Q100 Grade 1 compliance, and long-term lifecycle support.
Supply support for ASL5108SHV includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in automotive-grade mixed-signal ICs.
The ASL5108SHV belongs to NXP's Matrix LED Controller (MLC) product line, engineered specifically for scalable, fault-tolerant, CAN-controlled LED pixel arrays in next-generation automotive lighting systems.
FAQ
What is the primary function of the ASL5108SHV in an automotive lighting system?
The ASL5108SHV serves as a 12-channel high-side LED driver implementing direct PWM control for matrix/pixelated lighting. It receives real-time dimming commands over CAN from a host microcontroller and executes precise 12-bit PWM switching on each of its 12 outputs-enabling adaptive beam shaping, dynamic rear signatures, and other advanced lighting functions in systems like ADB and GFHB. Its integrated diagnostics and LHM ensure functional safety compliance.
Does the ASL5108SHV require an external crystal oscillator?
No, the ASL5108SHV does not require an external crystal oscillator. It incorporates an internal 200 MHz oscillator that generates all required clocks, with trimming performed via CAN messages to achieve <0.25 % accuracy. This eliminates external quartz components, reduces system cost and PCB area, and improves electromagnetic compatibility in automotive environments.
How does the ASL5108SHV handle LED open-circuit faults?
The ASL5108SHV performs individual open-circuit detection on all 12 output channels and reports fault flags via CAN. When an open circuit is detected, it can optionally bypass the affected channel to maintain illumination continuity in adjacent segments. Fault flags can be cleared dynamically over CAN without requiring a power-on reset, enabling rapid recovery during runtime.
What is the maximum string voltage supported by the ASL5108SHV?
The ASL5108SHV supports a maximum LED string voltage of 57 V across its output channels. Each of its 12 switches is rated for operation up to this voltage, and the four configurable 3-switch blocks can float up to 60 V relative to ground-allowing flexible series/parallel LED configurations and compatibility with common automotive LED stacks.
Is the ASL5108SHV pin-compatible with other members of the ASL5xxx family?
Yes, the ASL5108SHV is pin-to-pin compatible with all other ASL5xxx variants in the HLQFP48 package-including ASL5115SHV, ASL5008SHV, and ASL5015SHV. This allows seamless scalability between 0.8 A and 1.5 A per switch, and between Smart PWM and Direct PWM modes, without PCB redesign-supporting modular lighting platform development.
ASL5108SHV/0Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 48-LQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- Switched Capacitor (Charge Pump)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 12
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- -
- Current - Output / Channel:
- 800mA
- Frequency:
- 200MHz
- Dimming:
- PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-HLQFP (7x7)
ASL5108SHV/0Y FAQ
1.How can I place an order for ASL5108SHV/0Y through Aetrix?
Please submit a Request for Quotation (RFQ) for ASL5108SHV/0Y on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ASL5108SHV/0Y reliable?
The price and inventory of ASL5108SHV/0Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ASL5108SHV/0Y is usually 5 days.
3.What payment methods are accepted for ASL5108SHV/0Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ASL5108SHV/0Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ASL5108SHV/0Y?
ASL5108SHV/0Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ASL5108SHV/0Y order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ASL5108SHV/0Y?
For technical support, including ASL5108SHV/0Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ASL5108SHV/0Y requirements.
6.How does Aetrix verify that ASL5108SHV/0Y is sourced from the original manufacturer or authorized distributors?
All ASL5108SHV/0Y products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ASL5108SHV/0Y meets industry standards.
7.What is the process for return or replacement of ASL5108SHV/0Y?
All ASL5108SHV/0Y units undergo pre-shipment inspection (PSI). If there is an issue with ASL5108SHV/0Y, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ASL5108SHV/0Y part is unused and in its original packaging.
Return procedure for ASL5108SHV/0Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ASL5108SHV/0Y Tags
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BCR402RE6327HTSA1
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BCR420UE6433HTMA1
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HV9910CLG-G
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CL2N8-G
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