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Diodes Incorporated AL5809-15QP1-7
- Part No.:
- AL5809-15QP1-7
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- POWERDI®123
- Datasheet:
-
AL5809-15QP1-7.pdf
- Description:
- IC LED DRVR LIN PWM 15MA PDI123
- Quantity:
- Payment:
- Shipping:
Inventory:3,994
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Product details
Overview
AL5809-15QP1-7 from Diodes Incorporated is a two-terminal, AEC-Q100 Grade 1 qualified constant current LED driver delivering precisely 15 mA ±5% over -40°C to +150°C junction temperature, with 2.5 V to 60 V operating voltage range and 20 ppm/°C temperature stability. It supports both high-side and low-side LED string configurations in automotive interior lamps and instrumentation illumination.
For engineers reviewing the AL5809-15QP1-7 datasheet, AL5809-15QP1-7 pinout, AL5809-15QP1-7 application, or AL5809-15QP1-7 equivalent, key selection criteria include fixed-current accuracy across wide voltage/temperature ranges, thermal shutdown at +165°C with +30°C hysteresis, PowerDI123 (Type B) package thermal performance (θJA = 148.6°C/W on 25.4 mm² FR-4), and PWM dimming compatibility via external MOSFET switching.
Technical Context
The AL5809-15QP1-7 implements a precision current mirror architecture with an internal fixed reference resistor, enabling stable 15 mA output without external components. Its low-dropout regulator powers the control block, and startup occurs at ~1.5 V across terminals.
Thermal protection includes programmable shutdown at +165°C and automatic recovery after +30°C hysteresis. The device operates with ≤1% line regulation over 2.5–60 V input range and maintains ±5% current tolerance from -40°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LED Output Current | 15 mA ±5% at +25°C; 12.8–17.3 mA over -40°C to +150°C - ensures consistent brightness in automotive ambient extremes |
| Operating Voltage Range | 2.5 V to 60 V across IN–OUT terminals - supports 2–15 white LEDs in series from 9–16 V automotive battery with margin for transients |
| Temperature Stability | 20 ppm/°C - limits current drift to <±0.3% over full junction range, critical for color-stable lighting |
| Thermal Shutdown | +165°C activation with +30°C hysteresis - prevents thermal runaway while enabling safe auto-recovery after cooling |
| ESD Protection | HBM: 4 kV, MM: 400 V, CDM: 1 kV - meets automotive handling robustness requirements per AEC-Q100 |
| Power Dissipation | 1.5 W max in PowerDI123 (Type B) with θJC = 27.15°C/W - enables direct PCB heatsinking without external thermal pads |
| PWM Dimming Support | Min pulse width: 500 µs ON/OFF - allows 100–200 Hz dimming with 5–95% duty cycle control using external MOSFET |
Pinout & Package
Package: PowerDI123 (Type B), surface-mount, thermally enhanced with exposed cathode pad; dimensions: 3.70 × 2.80 × 1.78 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Current Input Terminal | LED current flows into this pin; connects to LED cathode in low-side config or LED anode in high-side config |
| OUT (Pin 2) | Current Output Terminal | LED current flows out of this pin; connects to LED anode in low-side config or LED cathode in high-side config |
Key Features
| Feature | Design Value |
|---|---|
| Two-terminal simplicity | Eliminates external current-setting resistors - reduces BOM count and layout area in space-constrained automotive modules |
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C ambient operation - certified for engine bay–adjacent and dashboard-mounted lighting |
| High-voltage transient tolerance | 60 V max continuous, 80 V absolute max IN–OUT rating - withstands load-dump spikes up to ISO 7637-2 Pulse 5a (75 V/350 ms) |
| Lead-free & halogen-free | RoHS 2 compliant with <900 ppm Br/Cl and <1000 ppm Sb - satisfies EU ELV and OEM green material mandates |
| PPAP-capable documentation | Full automotive traceability including process flow, FMEA, control plans, and test reports - accelerates Tier-1 supplier approval |
Applications
| Automotive Interior Lamps | Instrumentation Illumination |
|---|---|
Use Scenario: LED backlighting for HVAC control panels and door handle illumination in passenger compartments. IC Role / Device Role / Timing Role: Constant-current source regulating 15 mA through parallel LED strings, independent of supply rail fluctuations. Use Value: Maintains uniform luminance across 12–16 V battery range and -40°C cold cranking, eliminating brightness variation during start-stop cycles. |
Use Scenario: Analog gauge pointer illumination and digital display backlighting in instrument clusters. IC Role / Device Role / Timing Role: Low-noise linear current source driving red/green LEDs with minimal EMI impact on sensitive analog sensor signals. Use Value: 20 ppm/°C stability ensures consistent color point over cabin temperature swings, preserving OEM-defined visual calibration. |
| Automotive Parking Lights | LED Status Indicators |
Use Scenario: Side-marker and rear parking lamp modules requiring fail-safe current regulation under reverse-battery and jump-start conditions. IC Role / Device Role / Timing Role: High-side configured current limiter protecting LED strings from overcurrent during 24 V jump-start events. Use Value: 60 V rating and thermal shutdown prevent catastrophic failure during 24 V system faults, meeting ISO 16750-2 electrical stress requirements. |
Use Scenario: Diagnostic LED indicators on ECUs, ADAS controllers, and infotainment head units. IC Role / Device Role / Timing Role: Two-pin current sink enabling compact placement adjacent to microcontroller GPIO pins. Use Value: Eliminates routing of current-setting resistors, reducing PCB layer count and enabling 0402-sized indicator layouts in dense control modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar constant-current LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL5809-15QP2-7 | Same 15 mA current, identical specs, but packaged in PowerDI123 (Type A) with different thermal pad geometry and θJA = 160°C/W | Lower thermal performance on standard FR-4; requires larger copper pour or thermal vias for same power handling | Select only when Type A footprint matches legacy board design; Type B offers superior thermal reliability in new designs |
| NSI45015AT1G | 15 mA ±3% accuracy, 45 V max, -40°C to +125°C ambient, SOD-123 package, no thermal shutdown | Lacks overtemperature protection and automotive qualification; rated for commercial/industrial use only | Acceptable for non-safety-critical interior lighting where cost is primary; not suitable for PPAP or under-hood applications |
Compared with AL5809-15QP1-7, the AL5809-15QP2-7 trades thermal efficiency for footprint compatibility, while NSI45015AT1G sacrifices automotive compliance and thermal safety for lower unit cost-making the original the only choice for AEC-Q100–mandated systems requiring guaranteed current stability and fault resilience.
Availability
AL5809-15QP1-7 is available at Aetrix Electronics and suitable for automotive interior lamps, instrumentation illumination, and parking light modules requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for AL5809-15QP1-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and ICs, specializing in high-reliability power management, signal integrity, and lighting solutions for automotive, industrial, and consumer markets.
The AL5809Q product line delivers AEC-Q100–qualified two-terminal LED drivers optimized for cost-sensitive, space-constrained automotive lighting where simplicity, thermal robustness, and regulatory compliance are mandatory.
FAQ
What is the minimum input voltage required to activate the AL5809-15QP1-7?
The device turns on when voltage across IN–OUT reaches approximately 1.5 V, with a guaranteed minimum power-up threshold of 1.0 V and maximum of 2.0 V across -40°C to +150°C. This allows reliable startup even during low-battery conditions (e.g., 9 V cranking), provided the LED forward voltage plus 1.5 V remains within the supply rail.
Can AL5809-15QP1-7 drive multiple LEDs in series?
Yes-it supports LED chains where total forward voltage is ≤ (VIN – 2.5 V). For example, with a 13.5 V automotive supply, up to five 2.5 V white LEDs (12.5 V total) can be driven, leaving 1.0 V headroom. Maximum chain voltage depends on supply stability and worst-case LED VF variation across temperature and batch.
How does thermal shutdown behave during sustained overload?
When junction temperature reaches +165°C, the device shuts down current flow completely. After cooling by ≥30°C (to ≤+135°C), it automatically resumes regulation without external reset. This hysteresis prevents oscillatory cycling and protects LEDs and PCB during intermittent overheating events like enclosed fixture operation.
Is PCB layout critical for achieving the rated 1.5 W power dissipation?
Yes-1.5 W assumes mounting on a 50.8 mm × 50.8 mm GETEK board with 25.4 mm × 25.4 mm copper pads and thermal vias. On standard 25.4 mm × 25.4 mm FR-4, θJA rises to 148.6°C/W, limiting continuous power to ~0.84 W at +25°C ambient. Layout must match thermal test conditions to realize full spec-rated performance.
AL5809-15QP1-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- POWERDI®123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 60V
- Voltage - Output:
- 60V
- Current - Output / Channel:
- 15mA
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
AL5809-15QP1-7 FAQ
1.How can I place an order for AL5809-15QP1-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL5809-15QP1-7 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 AL5809-15QP1-7 reliable?
The price and inventory of AL5809-15QP1-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL5809-15QP1-7 is usually 5 days.
3.What payment methods are accepted for AL5809-15QP1-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL5809-15QP1-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL5809-15QP1-7?
AL5809-15QP1-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL5809-15QP1-7 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 AL5809-15QP1-7?
For technical support, including AL5809-15QP1-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL5809-15QP1-7 requirements.
6.How does Aetrix verify that AL5809-15QP1-7 is sourced from the original manufacturer or authorized distributors?
All AL5809-15QP1-7 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 AL5809-15QP1-7 meets industry standards.
7.What is the process for return or replacement of AL5809-15QP1-7?
All AL5809-15QP1-7 units undergo pre-shipment inspection (PSI). If there is an issue with AL5809-15QP1-7, 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 AL5809-15QP1-7 part is unused and in its original packaging.
Return procedure for AL5809-15QP1-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AL5809-15QP1-7 Tags
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