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Diodes Incorporated AL5809-150P1-7
- Part No.:
- AL5809-150P1-7
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- POWERDI®123
- Datasheet:
-
AL5809-150P1-7.pdf
- Description:
- IC LED DRVR LIN PWM 150MA PDI123
- Quantity:
- Payment:
- Shipping:
Inventory:26,235
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Product details
Overview
AL5809-150P1-7 from Diodes Incorporated is a two-terminal linear constant-current LED driver in PowerDI123 package, delivering 150mA ±5% regulated current over -40°C to +125°C ambient, with 2.5V–60V input-to-output voltage range and 20ppm/°C temperature drift. It supports both high-side and low-side LED string configurations for offline AC/DC LED lamps and signage.
For engineers reviewing the AL5809-150P1-7 datasheet, AL5809-150P1-7 pinout, AL5809-150P1-7 application, or AL5809-150P1-7 equivalent, key selection criteria include its fixed 150mA output, 60V voltage rating between terminals, thermal shutdown at +165°C, PWM dimming compatibility, and PowerDI123 thermal performance (θJA = 81.39°C/W on GETEK).
Technical Context
The AL5809-150P1-7 integrates an internal precision current mirror and LDO regulator to maintain stable 150mA output across 2.5V–60V VIN-OUT, with line regulation ≤1% and startup threshold of 1.5V. Its floating ground architecture enables direct series connection with LED strings without external biasing.
It features thermal shutdown at +165°C with +30°C hysteresis, minimum on/off pulse widths of 500µs for PWM dimming (100–200Hz), and operates up to +175°C junction temperature. ESD protection includes 4kV HBM and 400V MM ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 150mA ±5% over -40°C to +125°C ambient - ensures consistent LED brightness without external resistor calibration. |
| VIN-OUT Range | 2.5V to 60V - supports long LED chains in offline 120/230VAC-derived supplies with minimal dropout headroom. |
| Temperature Drift | 20ppm/°C - maintains current stability across industrial temperature ranges without active compensation. |
| Thermal Shutdown | +165°C with +30°C hysteresis - prevents thermal runaway during overvoltage or poor PCB heatsinking conditions. |
| Package Thermal Resistance | θJA = 81.39°C/W on 50.8mm × 50.8mm GETEK PCB - enables 1.24W continuous dissipation at TA = +25°C. |
| PWM Dimming Support | Min. tON/tOFF = 500µs - compatible with 100–200Hz square-wave dimming using external MOSFET switching at OUT pin. |
| ESD Rating | 4kV HBM - meets IEC 61000-4-2 level for robust handling in manufacturing and field assembly. |
Pinout & Package
AL5809-150P1-7 uses the PowerDI123 (Type B) surface-mount package: 3.70mm × 2.80mm × 1.78mm body, single-row 2-pin configuration with exposed thermal pad (pin 2). Thermal vias to internal ground plane are recommended per Diodes' layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| In | LED current input terminal | Connects to LED cathode in low-side config or LED anode in high-side config; withstands up to +80V transient relative to OUT. |
| Out | LED current output terminal | Connects to LED anode in low-side config or LED cathode in high-side config; serves as reference/ground node for internal regulation block. |
Key Features
| Feature | Design Value |
|---|---|
| Two-terminal topology | Eliminates external current-setting resistor - reduces BOM count and PCB footprint in space-constrained LED modules. |
| High-side & low-side flexibility | Same device supports either configuration via pin assignment - simplifies design reuse across lamp and driver board variants. |
| 60V VIN-OUT rating | Withstands peak voltages in rectified offline inputs - enables direct use after bridge rectifier without additional clamping. |
| Lead-free & halogen-free | RoHS 2 compliant with <900ppm Br/Cl and <1000ppm Sb - satisfies EU EcoDesign and energy-efficient lighting regulatory requirements. |
| 1.24W power capability | Rated for 150mA at 8.3V drop (e.g., 24V supply driving 12V LED string) on optimized GETEK PCB - supports medium-power signage applications. |
Applications
| Offline LED Lamps | LED Signs |
|---|---|
|
Use Scenario: 120VAC-powered A19 replacement bulbs with 12–18V LED strings. IC Role / Device Role / Timing Role: Two-terminal constant-current regulator placed in series with LED string, operating as high-side driver after bridge rectifier. Use Value: Delivers stable 150mA despite 100VAC ripple and ambient temperatures up to +85°C inside enclosed fixture. |
Use Scenario: Outdoor channel letters with 24VDC input and multi-segment RGB LED arrays. IC Role / Device Role / Timing Role: Low-side current sink per segment, enabling independent PWM dimming control via external MOSFET at OUT pin. Use Value: Maintains color consistency across segments with ±5% current matching and 500µs min. PWM pulse support. |
| White Goods Illumination | Instrumentation Panels |
|
Use Scenario: Refrigerator interior lighting powered from 12VDC SMPS with wide ambient (-20°C to +70°C). IC Role / Device Role / Timing Role: Constant-current source in series with 3–5 white LEDs, configured as low-side driver for simplified grounding. Use Value: 20ppm/°C drift ensures uniform brightness across temperature extremes without recalibration. |
Use Scenario: Medical device status indicators requiring precise luminance and long-term reliability. IC Role / Device Role / Timing Role: High-side driver for single red/green LED on front-panel PCB, minimizing trace routing complexity. Use Value: 150mA output drives high-brightness LEDs at full intensity while maintaining <±5% tolerance over 10-year service life. |
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 |
|---|---|---|---|
| AL5809-120P1-7 | 120mA fixed output, lower power dissipation (0.99W max), same package and pinout | Suitable for shorter LED strings or lower-lumen designs where 150mA is excessive | Select when thermal margin is constrained and 120mA suffices for target luminous flux |
| NSI45015AT1G | 15mA fixed output, SOD-123 package, 45V VIN-OUT, no thermal shutdown | Limited to low-current indicator LEDs; lacks 60V rating and OTP protection for mains-connected designs | Use only in low-voltage DC systems (<36V) where thermal safety is managed externally |
Compared with AL5809-150P1-7, the -120P1-7 offers tighter thermal margins at reduced current, while NSI45015AT1G trades voltage capability and protection for ultra-compact size - making the AL5809-150P1-7 optimal for 60V-rated, thermally demanding LED lamp designs.
Availability
AL5809-150P1-7 is available at Aetrix Electronics and suitable for offline LED lamps, outdoor signage, and white goods illumination requiring stable component supply, long-lifecycle availability, and RoHS-compliant sourcing.
Supply support for AL5809-150P1-7 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 analog ICs, headquartered in Plano, Texas, with design centers across Asia and Europe.
The AL5809 product line delivers cost-effective, two-terminal constant-current drivers for LED lighting applications - designed specifically to replace resistive current limiting in AC/DC and DC/DC LED systems while ensuring thermal safety and long-term stability.
FAQ
What is the maximum LED string voltage supported by AL5809-150P1-7?
The AL5809-150P1-7 supports up to 60V across its IN and OUT pins. For a given supply voltage (e.g., 72VDC), the maximum LED string voltage equals supply minus 60V - so a 72V supply allows up to 12V of LED forward voltage. Derating is required above +85°C ambient per Figure 10.
Can AL5809-150P1-7 be used in parallel for higher current?
Yes - multiple AL5809-150P1-7 units can be paralleled to increase total LED current, as shown in Figure 3. However, ensure matched PCB thermal layout and identical trace lengths to minimize current imbalance; typical mismatch is <±10% with symmetric mounting.
Does AL5809-150P1-7 require a heatsink?
No dedicated heatsink is required, but thermal performance depends critically on PCB copper area and vias. On a 50.8mm × 50.8mm GETEK board with thermal vias, θJA = 81.39°C/W enables 1.24W dissipation. On standard FR-4, θJA rises to 148.61°C/W - limiting usable power to ~0.68W at +25°C ambient.
Is AL5809-150P1-7 compatible with PWM dimming?
Yes - it supports PWM dimming via external MOSFET switching at the OUT pin (Figure 4a), with validated operation from 100Hz to 200Hz. Minimum on/off times are 500µs; for 100Hz (10ms period), duty cycle must stay between 5% and 95% to avoid blanking or saturation.
AL5809-150P1-7 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:
- 150mA
- Frequency:
- -
- Dimming:
- -
- Applications:
- Signage
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 123
AL5809-150P1-7 FAQ
1.How can I place an order for AL5809-150P1-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL5809-150P1-7 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 AL5809-150P1-7 reliable?
The price and inventory of AL5809-150P1-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL5809-150P1-7 is usually 5 days.
3.What payment methods are accepted for AL5809-150P1-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL5809-150P1-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL5809-150P1-7?
AL5809-150P1-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL5809-150P1-7 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 AL5809-150P1-7?
For technical support, including AL5809-150P1-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL5809-150P1-7 requirements.
6.How does Aetrix verify that AL5809-150P1-7 is sourced from the original manufacturer or authorized distributors?
All AL5809-150P1-7 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 AL5809-150P1-7 meets industry standards.
7.What is the process for return or replacement of AL5809-150P1-7?
All AL5809-150P1-7 units undergo pre-shipment inspection (PSI). If there is an issue with AL5809-150P1-7, 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 AL5809-150P1-7 part is unused and in its original packaging.
Return procedure for AL5809-150P1-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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