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Diodes Incorporated AL5809-100QP1-7
- Part No.:
- AL5809-100QP1-7
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- POWERDI®123
- Datasheet:
-
AL5809-100QP1-7.pdf
- Description:
- IC LED DRVR LIN PWM 100MA PDI123
- Quantity:
- Payment:
- Shipping:
Inventory:30,326
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Product details
Overview
AL5809-100QP1-7 from Diodes Incorporated is an AEC-Q100 Grade 3 qualified, two-terminal constant current linear LED driver in PowerDI123 (Type B) package, delivering a precise 100mA ±5% output over -40°C to +150°C junction temperature, with 2.5V–60V input-to-output voltage range and 20ppm/°C temperature stability. It supports both high-side and low-side LED string configurations in automotive interior lamps and parking lights.
For engineers reviewing the AL5809-100QP1-7 datasheet, AL5809-100QP1-7 pinout, AL5809-100QP1-7 application, or AL5809-100QP1-7 equivalent, key selection criteria include its fixed 100mA current setting, thermal shutdown at +165°C with +30°C hysteresis, ±5% current accuracy across full temperature range, and compatibility with PWM dimming down to 500µs pulse width.
Technical Context
The AL5809-100QP1-7 integrates an internal precision current mirror and low-dropout regulator to maintain stable 100mA output without external resistors. Its two-pin architecture eliminates feedback loops and simplifies PCB layout for space-constrained automotive lighting modules.
It operates as a constant current regulator (CCR) with turn-on threshold of 1.5V and withstands 80V absolute maximum input-to-output differential. Thermal protection activates at +165°C junction temperature with +30°C hysteresis, enabling robust operation under transient overvoltage conditions typical in 12V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 100mA ±5% at +25°C; 90–110mA over -40°C to +150°C - ensures consistent LED brightness across vehicle operating environments |
| Input Voltage Range | 2.5V to 60V between IN and OUT pins - supports direct connection to 12V/24V automotive rails and tolerates load-dump transients up to 60V |
| Temperature Stability | 20ppm/°C - limits current drift to <±0.3% over full junction temperature range, critical for color consistency in multi-LED arrays |
| Thermal Shutdown | +165°C activation with +30°C hysteresis - prevents thermal runaway during sustained over-power conditions while enabling automatic recovery |
| ESD Protection | HBM: 4kV, MM: 400V, CDM: 1kV - meets automotive handling requirements without additional protection circuitry |
| Power Dissipation | 1.5W max in PowerDI123 (Type B) on 50.8mm × 50.8mm GETEK PCB - enables compact thermal design with minimal copper area |
| PWM Dimming Support | Min on/off pulse width: 500µs - allows 100–200Hz dimming with 5–95% duty cycle control using external MOSFET switching |
Pinout & Package
Package: PowerDI123 (Type B), surface-mount, thermally enhanced plastic case with exposed cathode pad (Pin 2) for heatsinking. Dimensions: 3.70mm × 2.80mm × 1.78mm (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 configuration or LED anode in high-side configuration |
| OUT (Pin 2) | Current Output Terminal | LED current flows out of this pin; connects to LED anode in low-side configuration or LED cathode in high-side configuration; serves as thermal pad for PCB heat transfer |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 100mA output | Eliminates need for external current-setting resistor, reducing BOM count and layout area in cost-sensitive automotive modules |
| AEC-Q100 Grade 3 qualification | Validated for -40°C to +85°C ambient operation with PPAP support - meets Tier 1 supplier requirements for exterior lighting applications |
| Two-terminal topology | Enables drop-in replacement of discrete current-limiting solutions with no change to existing PCB routing or control logic |
| High-side/low-side flexibility | Supports either configuration without external components - simplifies system-level integration in instrument clusters and door module designs |
| Lead-free & halogen-free | Complies with RoHS 2 and automotive green standards (<900ppm Br/Cl, <1000ppm Sb) - satisfies global OEM environmental mandates |
Applications
| Automotive Interior Lamps | Automotive Parking Lights |
|---|---|
|
Use Scenario: Illumination of map pockets, footwells, and overhead consoles in passenger vehicles. IC Role / Device Role / Timing Role: Constant current regulator maintaining 100mA through parallel white LED strings powered from 12V battery rail. Use Value: Delivers stable luminance across cold cranking (-40°C) and hot soak (+85°C ambient) without brightness shift or thermal shutdown. |
Use Scenario: Side-marker and rear parking lamp illumination in light-duty trucks and SUVs. IC Role / Device Role / Timing Role: High-side LED driver controlling red LED arrays connected to chassis ground, with transient immunity up to 60V. Use Value: Withstands ISO 7637-2 Pulse 1/2a/5a transients without derating or external TVS, reducing system component count. |
| Instrument Cluster Backlighting | Door Module Status Indicators |
|
Use Scenario: Uniform backlighting of TFT LCD segments and analog gauge needles in digital instrument clusters. IC Role / Device Role / Timing Role: Low-side constant current source driving green/blue LED strings with PWM dimming at 100Hz. Use Value: Enables flicker-free dimming down to 5% duty cycle while maintaining ±5% current accuracy for consistent color point. |
Use Scenario: Status indication for power window, lock, and mirror controls in vehicle door modules. IC Role / Device Role / Timing Role: Two-terminal current limiter replacing Zener+resistor networks for amber LED indicators. Use Value: Reduces footprint by 40% versus discrete solution and improves long-term current stability over 15-year vehicle lifecycle. |
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 |
|---|---|---|---|
| AL5809-90QP1-7 | 90mA ±5% output, AEC-Q100 Grade 3, identical package and pinout | Limited to lower-brightness indicator applications; requires higher forward voltage margin for same LED count | Select when 90mA suffices and thermal margin must be increased by ~10% at same VINOUT |
| AL5809-120QP1-7 | 120mA ±5% output, AEC-Q100 Grade 3, identical package and pinout | Suitable for higher-lumen parking lamps; dissipates ~20% more power at same VINOUT | Choose for upgraded brightness where PCB thermal design supports 1.5W+ dissipation |
Compared with AL5809-90QP1-7 and AL5809-120QP1-7, the AL5809-100QP1-7 provides optimal balance of luminous flux, thermal headroom, and system efficiency for mid-tier automotive lighting modules requiring precise 100mA drive without overdesign.
Availability
AL5809-100QP1-7 is available at Aetrix Electronics and suitable for automotive interior lamps, parking lights, instrument cluster backlighting, and door module status indicators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AL5809-100QP1-7 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 constant current drivers optimized for cost-sensitive, space-constrained automotive LED lighting applications where simplicity, thermal robustness, and qualification compliance are mandatory.
FAQ
What is the minimum input voltage required for AL5809-100QP1-7 to regulate current?
The device begins regulating current once the voltage across IN and OUT terminals reaches approximately 1.5V, with guaranteed operation starting at 2.5V. At 2.5V and 100mA, power dissipation is only 250mW - enabling reliable startup even during cold-cranking conditions where battery voltage drops to 9V.
Can AL5809-100QP1-7 be used in high-side configuration with common-anode LED strings?
Yes - connect the LED anode to the OUT pin and cathode to the positive supply rail. The device regulates current flowing from OUT to IN, making it fully compatible with high-side topology. No external components are needed, and thermal performance remains identical to low-side use due to shared PowerDI123 (Type B) package construction.
Does AL5809-100QP1-7 support analog dimming via voltage control?
No - the AL5809-100QP1-7 has no analog dimming interface. Dimming is implemented externally via PWM switching of the OUT pin using a MOSFET, with minimum on/off pulse widths of 500µs. This method preserves current accuracy and avoids analog control drift over temperature.
How does thermal shutdown behavior affect system reliability in continuous operation?
Thermal shutdown activates at +165°C junction temperature with +30°C hysteresis, allowing automatic recovery once temperature falls below +135°C. This protects against permanent damage during sustained over-power events while maintaining functional safety - no latch-up or manual reset is required, ensuring uninterrupted operation after transient overload.
AL5809-100QP1-7 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:
- 100mA
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
AL5809-100QP1-7 FAQ
1.How can I place an order for AL5809-100QP1-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL5809-100QP1-7 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 AL5809-100QP1-7 reliable?
The price and inventory of AL5809-100QP1-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL5809-100QP1-7 is usually 5 days.
3.What payment methods are accepted for AL5809-100QP1-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL5809-100QP1-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL5809-100QP1-7?
AL5809-100QP1-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL5809-100QP1-7 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 AL5809-100QP1-7?
For technical support, including AL5809-100QP1-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL5809-100QP1-7 requirements.
6.How does Aetrix verify that AL5809-100QP1-7 is sourced from the original manufacturer or authorized distributors?
All AL5809-100QP1-7 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 AL5809-100QP1-7 meets industry standards.
7.What is the process for return or replacement of AL5809-100QP1-7?
All AL5809-100QP1-7 units undergo pre-shipment inspection (PSI). If there is an issue with AL5809-100QP1-7, 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 AL5809-100QP1-7 part is unused and in its original packaging.
Return procedure for AL5809-100QP1-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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