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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

Diodes Incorporated AL5810QD-13

Name: AL5810QD-13
Brand: Diodes Incorporated
SKU: AL5810QD-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AL5810QD-13

Manufacturer:: Diodes Incorporated

Category:: LED Drivers

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: AL5810QD-13.pdf

Description:: LED Linear Driver TO252 T&R 2.5K

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AL5810QD-13 from Diodes Incorporated is an AEC-Q100 Grade 2 qualified linear LED driver IC designed for automotive high-side or low-side LED string control, featuring 2.0–60V input range, ±3% LED current accuracy at +25°C, 0.5V RSET reference voltage, and 200mA adjustable sink/source capability in TO252 (DPAK) package with 3.85W power dissipation. It enables stable interior/exterior lighting under wide ambient temperature (−40°C to +105°C) and supports PWM dimming via external MOSFET.

For engineers reviewing the AL5810QD-13 datasheet, AL5810QD-13 pinout, AL5810QD-13 application, or AL5810QD-13 equivalent, key selection considerations include its 60V IN-to-OUT voltage swing, wettable-flank-compatible TO252 thermal performance, ±1% line regulation, parallel configuration support for higher current, and AEC-Q100-compliant PPAP readiness for automotive lighting systems.

Technical Context

The AL5810QD-13 implements a precision current-regulator architecture using an internal 0.5V reference applied to the RSET pin, enabling LED current calculation as I_LED = 750 / R_SET (Ω) in mA. Its open-drain output supports both high-side (IN connected to VIN, OUT to LED anode) and low-side (IN to LED cathode, OUT to GND) topologies without external sense resistor in the LED path.

Thermal protection includes overtemperature shutdown at +165°C with +30°C hysteresis, and operation is validated across −40°C to +105°C ambient per AEC-Q100 Grade 2. Minimum 500µs PWM on/off pulse widths are specified for reliable dimming control when driving the RSET pin via external MOSFET.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.0V to 60V - supports direct connection to automotive battery (12V/24V) and long LED strings without buck conversion.
LED Current Accuracy	±3% at +25°C, ±4% over −40°C to +105°C - ensures consistent brightness across vehicle cabin and exterior lighting zones.
RSET Reference Voltage	0.5V - minimizes power loss in current-setting resistor and reduces thermal overhead vs. higher-V_REF drivers.
Max Continuous LED Current	200mA (TO252 package) - sufficient for multi-LED dome, puddle, and side-marker applications with thermal derating.
Thermal Shutdown Threshold	+165°C junction, +30°C hysteresis - prevents latch-up during transient overload or poor PCB heatsinking.
PWM Dimming Support	500µs min on/off time - compatible with standard 200–500Hz automotive PWM dimming without flicker or current droop.
ESD Protection	HBM 4kV, CDM 1kV - meets automotive handling robustness requirements for assembly and field service.

Pinout & Package

AL5810QD-13 uses the TO252 (DPAK) package: 6.10mm × 6.58mm body, 2.286mm lead pitch, exposed thermal pad on underside for PCB heatsinking, rated for 3.85W power dissipation at T_A = +25°C with recommended FR-4 layout (51mm × 51mm 2oz copper, thermal vias).

Pin/Terminal	Circuit Role	Design Meaning
1 - IN	LED current input terminal	Connects to VIN (high-side) or LED cathode (low-side); handles up to 60V relative to OUT, enabling flexible topology selection.
2 - OUT	LED current output terminal	Connects to GND (low-side) or LED anode (high-side); open-drain structure allows rail-to-rail voltage swing up to 60V.
3 - RSET	Current-setting reference node	Bias input for 0.5V reference; resistor between RSET and OUT sets I_LED; isolated from main current path to preserve accuracy.

Key Features

Feature	Design Value
AEC-Q100 Grade 2 qualification	Validated for −40°C to +105°C ambient operation with PPAP documentation support in IATF16949-certified facilities.
Adjustable 200mA sink/source drive	Configurable via single external resistor (RSET), eliminating need for precision current-sense resistors in LED path.
Low 0.5V RSET reference	Reduces RSET power loss by >75% vs. 1.25V references, lowering thermal stress and enabling smaller, cheaper resistors.
Parallel operation support	Multiple AL5810QD-13 units can be paralleled to scale regulated current beyond 200mA while maintaining accuracy.
Integrated thermal shutdown	Auto-recovery protection at +165°C junction with +30°C hysteresis prevents damage during sustained overloads or poor heatsinking.

Applications

Interior Dome Lighting

Exterior Puddle Lighting

Use Scenario: Illuminating vehicle cabin ceiling with uniform white LED strings powered from 12V battery.

IC Role / Device Role / Timing Role: Linear constant-current sink regulating 100–200mA through 2–4 series LEDs in low-side configuration.

Use Value: Eliminates switching noise interference with infotainment systems while maintaining ±3% brightness consistency across temperature.

Use Scenario: Ground-level LED projection beneath doors to illuminate entry/exit zones during nighttime vehicle access.

IC Role / Device Role / Timing Role: High-side current source driving 150mA LED string from 12V supply, synchronized with door-open signal.

Use Value: Enables compact, EMI-free design with fast PWM dimming response (500µs min pulse) for smooth fade-in/fade-out effects.

Side Marker Lights

Instrument Cluster Backlighting

Use Scenario: Red/amber LED arrays mounted on vehicle fenders meeting SAE J585E photometric requirements.

IC Role / Device Role / Timing Role: Constant-current regulator operating from 12V/24V supply with ±1% line regulation to maintain luminous intensity across battery voltage swings.

Use Value: Ensures regulatory compliance under cold-crank (6.5V) and load-dump (30V) conditions without additional voltage clamping.

Use Scenario: Adjustable-intensity backlight for analog/digital gauges and TFT displays in instrument panels.

IC Role / Device Role / Timing Role: Low-noise current source controlled via microcontroller-generated PWM applied to RSET pin.

Use Value: Delivers flicker-free dimming across 10–100% range while preserving color point stability of phosphor-converted LEDs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar linear LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AL5810QFJ3-7	Same die, W-DFN2020-3/SWP (Type A) package; 2W PD, 61.66°C/W θ_JA, smaller footprint (2mm × 2mm).	Preferred for space-constrained modules (e.g., mirror turn signals); requires enhanced PCB thermal vias for equivalent current capability.	Select FJ3 for miniaturized designs where board area is critical and thermal management can be optimized.
AL8863Q-7	Switching buck LED driver; 40V max input, 1.5A output, integrated MOSFET, 92% efficiency vs. ~75% for AL5810QD-13 at 12V→3.2V.	Suitable for high-power (>500mA) or thermally limited applications where heat dissipation cannot be managed with linear topology.	Select AL8863Q-7 when system-level efficiency or >200mA drive is required; AL5810QD-13 remains optimal for <200mA, low-EMI, cost-sensitive automotive lighting.

Compared with AL5810QFJ3-7, AL5810QD-13 offers higher power handling (3.85W vs. 2W) and lower thermal resistance (31.46°C/W vs. 61.66°C/W), making it preferable for sustained 200mA operation in ambient temperatures up to +105°C; versus AL8863Q-7, AL5810QD-13 provides simpler BOM, zero EMI, and deterministic dimming timing at the cost of lower efficiency in high-V_IN/low-V_LED scenarios.

Availability

AL5810QD-13 is available at Aetrix Electronics and suitable for interior dome lighting, exterior puddle lighting, side marker lights, and instrument cluster backlighting requiring stable component supply, AEC-Q100 compliance, and production-ready PPAP documentation.

Supply support for AL5810QD-13 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 AL5810Q product line delivers AEC-Q100-qualified linear LED drivers optimized for automotive interior/exterior lighting, emphasizing thermal robustness, ±3% current accuracy, and topology flexibility (high-side/low-side) without external sense resistors.

FAQ

What is the maximum LED current supported by AL5810QD-13 in automotive ambient conditions?

The AL5810QD-13 supports up to 200mA continuous LED current when used in the TO252 package with proper PCB thermal design (51mm × 51mm 2oz copper, thermal vias). At +105°C ambient, current must be derated to maintain junction temperature ≤+150°C-e.g., ~150mA with typical layout. Absolute maximum rating is 250mA, but this is not production-guaranteed per datasheet Note 14.

Can AL5810QD-13 drive LEDs in high-side configuration, and how is RSET connected?

Yes, AL5810QD-13 supports high-side configuration: connect VIN to IN (Pin 1), LED anode to OUT (Pin 2), and place RSET between RSET (Pin 3) and OUT. This configures the device as a current source. The 0.5V RSET reference remains accurate because it's referenced to OUT, not GND, enabling stable regulation regardless of topology.

Does AL5810QD-13 require an external MOSFET for PWM dimming, and why?

Yes-PWM dimming is implemented by placing an n-channel MOSFET between RSET and GND, switching the RSET bias current on/off. This method avoids modulating the main LED current path, preserving regulation accuracy and eliminating current overshoot. The 500µs minimum pulse width ensures clean transitions without flicker at 200–500Hz dimming frequencies.

How does the 0.5V RSET reference improve thermal performance compared to conventional linear LED drivers?

The 0.5V RSET reference reduces power dissipated in the current-setting resistor by more than 60% versus 1.25V references (P = V²/R). For a 100mA design with RSET = 7.5kΩ, power in RSET drops from ~208mW to ~33mW. This lowers total system thermal load, simplifies heatsinking, and improves long-term reliability in sealed automotive enclosures.

AL5810QD-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Bulk

Product Status:: Active

Type:: Linear

Topology:: -

Internal Switch(s):: Yes

Number of Outputs:: 1

Voltage - Supply (Min):: 2V

Voltage - Supply (Max):: 60V

Voltage - Output:: -

Current - Output / Channel:: 200mA

Frequency:: -

Dimming:: PWM

Applications:: -

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252 (DPAK)

AL5810QD-13 FAQ

1.How can I place an order for AL5810QD-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for AL5810QD-13 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 AL5810QD-13 reliable?

The price and inventory of AL5810QD-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL5810QD-13 is usually 5 days.

3.What payment methods are accepted for AL5810QD-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL5810QD-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AL5810QD-13?

AL5810QD-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AL5810QD-13 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 AL5810QD-13?

For technical support, including AL5810QD-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL5810QD-13 requirements.

6.How does Aetrix verify that AL5810QD-13 is sourced from the original manufacturer or authorized distributors?

All AL5810QD-13 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 AL5810QD-13 meets industry standards.

7.What is the process for return or replacement of AL5810QD-13?

All AL5810QD-13 units undergo pre-shipment inspection (PSI). If there is an issue with AL5810QD-13, 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 AL5810QD-13 part is unused and in its original packaging.

Return procedure for AL5810QD-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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