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NXP Semiconductors ASL1507SHNY
- Part No.:
- ASL1507SHNY
- Manufacturer:
- NXP Semiconductors
- Category:
- LED Drivers
- Package:
- -
- Datasheet:
-
ASL1507SHNY.pdf
- Description:
- BOOST CONVERTER + FSO
- Quantity:
- Payment:
- Shipping:
Inventory:1,890
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Product details
Overview
ASL1507SHNY from NXP Semiconductors is a single-phase automotive-grade DC-DC boost converter IC with integrated gate driver, dual PI controllers, and SPI interface. It operates from 5.5 V to 40 V input, delivers up to 80 V output, supports limp-home mode on SPI failure, and is qualified to AEC-Q100 Grade 1 for use in LED lighting power supplies driving ASLx416/17SHN buck drivers.
For engineers reviewing the ASL1507SHNY datasheet, ASL1507SHNY pinout, ASL1507SHNY application, or ASL1507SHNY equivalent, this page provides verified technical context, validated pin functions, confirmed automotive operating range (−40 °C to +125 °C), HVQFN32 package details, and real-world LED lighting use cases - all extracted from NXP's official Rev. 1 product data sheet dated 26 April 2018.
Technical Context
The ASL1507SHNY implements fixed-frequency peak current-mode control with parabolic/non-linear slope compensation, enabling stable regulation across wide input/output ranges. Its single gate driver (G1) drives one external low-side N-channel MOSFET, while dual PI controllers independently regulate output voltage via FB1 feedback.
SPI-configurable parameters include switching frequency (125–700 kHz), spread spectrum, overvoltage protection threshold, ramp-up timing, and loop compensation coefficients. Limp-home mode activates on SPI communication loss, executing pre-programmed NVM settings for fail-safe operation without MCU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 40 V - supports full automotive battery range including cold-crank and load-dump conditions |
| Max Output Voltage | 80 V - sufficient to bias multichannel LED buck drivers like ASLx416/17SHN |
| Switching Frequency | 125 kHz to 700 kHz - programmable via SPI for EMC optimization and external component selection |
| Accuracy | ±3 % output voltage regulation - ensures consistent LED current sourcing across temperature and load |
| Operating Temp | −40 °C to +125 °C ambient - meets AEC-Q100 Grade 1 requirements for under-hood automotive use |
| Quiescent Current | < 5 μA in EN = 0 state - enables ultra-low-power standby for always-on lighting systems |
| Package | HVQFN32 (5 × 5 × 0.85 mm) with exposed thermal pad - optimized for high-power density and thermal reliability |
Pinout & Package
The ASL1507SHNY is housed in an HVQFN32 package (SOT617-12) with 32 terminals, 5 × 5 × 0.85 mm body, and exposed thermal pad requiring soldering to PCB ground for thermal and electrical integrity.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 SNL1 | Phase 1 sense low | Current-sense input for low-side shunt resistor in boost inductor path |
| 2 SNH1 | Phase 1 sense high | Current-sense input for high-side shunt resistor configuration |
| 3 GND | Ground | Primary power and signal reference; connects to exposed thermal pad |
| 4 G1 | Phase 1 gate driver output | Drives external low-side N-MOSFET; supports logic- and standard-level FETs |
| 5 VGG | Gate driver supply | Internally regulated adjustable supply for G1; programmable via SPI |
| 11 FB1 | Output 1 feedback | Voltage sensing input for closed-loop regulation of VO1; connects to resistive divider |
| 13 VBAT | Battery supply input | Main power input (5.5–40 V); feeds internal regulators and UV/OV detection |
| 26 SDI | SPI data input | Serial peripheral interface input for configuration and diagnostics |
| 27 SCLK | SPI clock | Master-generated clock synchronizing SPI read/write operations |
| 28 CSB | SPI chip select | Active-low enable for SPI communication; must be asserted for register access |
| 29 EN | Enable signal | Hardware-controlled startup/shutdown; pulls device into reset when low |
| 30 VCC | External 5 V supply | Provides regulated 5 V for SPI interface and digital logic; decoupling required |
| 31 SDO | SPI data output | Read-back channel for diagnostic data (temperature, VBAT, VGG, VO1) |
| 32 GND | Chip ground | Secondary ground connection; ties to main GND plane and thermal pad |
Key Features
| Feature | Design Value |
|---|---|
| Limp-home mode | Autonomous operation using NVM-stored configuration upon SPI failure - ensures fail-safe LED lighting continuity |
| Programmable slope compensation | Configurable per-output (28–112 kΩ range) to maintain stability across frequency and output voltage changes |
| SPI-based loop tuning | Independent proportional (0.05–0.8) and integral (0.005–0.08) gain adjustment for each PI controller |
| Spread spectrum modulation | Reduces EMI peak emissions by dithering switching frequency - configurable per output via SS_SCEN registers |
| Overvoltage lockout | Halts G1 switching when VO1 exceeds SPI-programmed limit - protects downstream LED drivers from overvoltage stress |
| Thermal shutdown | Automatic disable at junction temperature > Tsd(otp); recovery after cooldown - prevents permanent damage in overload |
Applications
| Daytime Running Lights (DRL) | Low Beam Headlights |
|---|---|
Use Scenario: Continuous 24/7 illumination at reduced power for vehicle visibility during daylight hours. IC Role / Device Role / Timing Role: Primary boost regulator supplying stable 45–60 V to multichannel LED buck drivers. Use Value: Enables precise dimming control and consistent lumen output across battery voltage fluctuations (9–16 V). |
Use Scenario: High-intensity forward illumination with thermal and electrical robustness for urban and highway use. IC Role / Device Role / Timing Role: Single-phase boost stage delivering up to 80 V to drive high-current LED strings via ASLx416/17SHN. Use Value: Limp-home mode maintains partial illumination during microcontroller faults - critical for functional safety compliance. |
| Position / Park Lights | Fog Lights |
Use Scenario: Low-power steady-state lighting for vehicle outline identification at night or in low-visibility conditions. IC Role / Device Role / Timing Role: Efficient step-up converter powering multiple low-current LEDs from 12 V battery rail. Use Value: <5 μA quiescent current in EN=0 state minimizes battery drain during vehicle off-time. |
Use Scenario: High-output, wide-beam illumination in rain, snow, or fog where standard headlights cause glare. IC Role / Device Role / Timing Role: Robust boost controller supporting rapid on/off cycling and transient-heavy load profiles. Use Value: AEC-Q100 Grade 1 qualification ensures reliable operation at −40 °C startup and +125 °C under-hood ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ASL2507SHN | Two-phase architecture with dual gate drivers (G1/G2), dual feedback (FB1/FB2), and independent output control - not pin-compatible with ASL1507SHNY | Supports dual-output or interleaved single-output configurations; required for higher power or redundancy-critical systems | Select only if two-phase operation or independent VO2 regulation is needed; requires PCB redesign and firmware updates |
| MPQ4312-AEC1 | Monolithic 100 V synchronous boost converter (no external MOSFET required); fixed 500 kHz frequency; no limp-home or NVM configuration | Lacks SPI configurability, limp-home mode, and automotive diagnostic features - suitable for cost-sensitive non-safety-critical lighting | Choose for simplified BOM and layout where SPI control, fail-safe behavior, and AEC-Q100 diagnostic depth are not required |
Compared with ASL2507SHN and MPQ4312-AEC1, the ASL1507SHNY uniquely balances single-phase simplicity with automotive-grade safety features - offering limp-home autonomy, SPI-tunable loop dynamics, and AEC-Q100 Grade 1 validation in a compact HVQFN32 package.
Availability
ASL1507SHNY is available at Aetrix Electronics and suitable for automotive LED lighting, daytime running lights, and position light systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for ASL1507SHNY 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 leadership in automotive power management and lighting ICs.
The ASL1507SHNY belongs to NXP's ASL automotive LED driver power supply family, designed specifically to deliver highly reliable, SPI-configurable boost voltage for multichannel LED buck controllers in safety-critical exterior lighting.
FAQ
What is the primary function of the ASL1507SHNY in an automotive LED lighting system?
The ASL1507SHNY serves as a single-phase DC-DC boost converter that generates a stable, programmable high-voltage rail (up to 80 V) to power downstream multichannel LED buck drivers such as the ASLx416/17SHN. It integrates gate driving, dual PI control, SPI configuration, and limp-home mode - enabling precise, safe, and adaptive LED current regulation in demanding automotive environments. The ASL1507SHNY is central to maintaining consistent lumen output despite battery voltage variation and thermal stress.
Does the ASL1507SHNY support dual-output operation?
No, the ASL1507SHNY is strictly a single-phase, single-output boost converter. It features only one gate driver (G1), one feedback input (FB1), and one regulated output voltage (VO1). While its datasheet is published jointly with the two-phase ASL2507SHN, the ASL1507SHNY hardware lacks pins FB2, G2, SNL2, SNH2, and associated internal circuitry. Dual-output capability requires the ASL2507SHN or separate boost stages.
How does limp-home mode operate in the ASL1507SHNY?
Limp-home mode activates automatically when SPI communication is lost - for example, due to MCU failure or bus interruption. The ASL1507SHNY then executes pre-programmed settings stored in non-volatile memory (NVM), including output voltage, frequency, ramp-up profile, and protection thresholds. During this mode, SPI remains partially functional (read-only for diagnostics), but full control reverts to autonomous analog regulation - ensuring continued LED illumination at safe, predefined levels without MCU involvement.
What package type and thermal requirements apply to the ASL1507SHNY?
The ASL1507SHNY uses the HVQFN32 package (SOT617-12): 5 mm × 5 mm × 0.85 mm with 32 terminals and an exposed center thermal pad. For reliable operation, the pad must be soldered directly to a large PCB copper area connected to ground - not left floating or tied to other potentials. This ensures effective heat dissipation given the device's power handling in automotive ambient temperatures up to +125 °C.
Can the ASL1507SHNY drive both logic-level and standard-level MOSFETs?
Yes, the ASL1507SHNY's integrated gate driver (G1) supports both logic-level and standard-level N-channel MOSFETs. Its VGG output is internally regulated and programmable via SPI, allowing adjustment of gate drive voltage to match the threshold and RDS(on) requirements of diverse external FETs. This flexibility simplifies design across varying efficiency, cost, and thermal targets - confirmed in Section 2 of the NXP datasheet Rev. 1.
ASL1507SHNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Topology:
- -
- Internal Switch(s):
- -
- Number of Outputs:
- -
- Voltage - Supply (Min):
- -
- Voltage - Supply (Max):
- -
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ASL1507SHNY FAQ
1.How can I place an order for ASL1507SHNY through Aetrix?
Please submit a Request for Quotation (RFQ) for ASL1507SHNY 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 ASL1507SHNY reliable?
The price and inventory of ASL1507SHNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ASL1507SHNY is usually 5 days.
3.What payment methods are accepted for ASL1507SHNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ASL1507SHNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ASL1507SHNY?
ASL1507SHNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ASL1507SHNY 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 ASL1507SHNY?
For technical support, including ASL1507SHNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ASL1507SHNY requirements.
6.How does Aetrix verify that ASL1507SHNY is sourced from the original manufacturer or authorized distributors?
All ASL1507SHNY 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 ASL1507SHNY meets industry standards.
7.What is the process for return or replacement of ASL1507SHNY?
All ASL1507SHNY units undergo pre-shipment inspection (PSI). If there is an issue with ASL1507SHNY, 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 ASL1507SHNY part is unused and in its original packaging.
Return procedure for ASL1507SHNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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