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

Diodes Incorporated AL8807AMP-13

Name: AL8807AMP-13
Brand: Diodes Incorporated
SKU: AL8807AMP-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AL8807AMP-13

Manufacturer:: Diodes Incorporated

Category:: LED Drivers

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad

Datasheet:: AL8807AMP-13.pdf

Description:: IC LED DRVR RGLTR ANALOG 8MSOP

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Product details

Overview

AL8807AMP-13 from Diodes Incorporated is a high-efficiency, low-EMI buck LED driver IC designed for constant-current LED string control in 6V–36V input systems. It delivers up to 1.3A output current (MSOP-8EP), supports >10:1 analog dimming via CTRL pin (0.25V–2.5V), operates up to 1MHz switching frequency, and integrates open-circuit/short-circuit/over-temperature protection. It drives up to 9 white LEDs in series and is used in 12V-powered architectural and industrial LED lamps.

For engineers reviewing the AL8807AMP-13 datasheet, AL8807AMP-13 pinout, AL8807AMP-13 application, or AL8807AMP-13 equivalent, this page provides verified technical context, real-world dimming behavior, thermal resistance values (θJA = 69°C/W), analog control linearity limits below 0.25V CTRL, and confirmed soft-start capacitor timing data for production design validation.

Technical Context

The AL8807AMP-13 employs a hysteretic (constant-on-time) control architecture with internal 100mV SET threshold and 2.5V internal VREF referenced to CTRL. Its switching node (SW) features controlled rise/fall times (12ns/20ns) to minimize EMI, and it maintains continuous conduction mode across its analog dimming range by dynamically adjusting both upper and lower current thresholds.

It uses an external sense resistor between VIN and SET to set nominal LED current (I_LED = 0.1V / R_SET), while CTRL voltage scales output linearly down to 10% of nominal current. Below 0.25V CTRL, accuracy degrades due to reduced sense voltage (e.g., 10mV at 0.25V CTRL) and propagation delay effects at elevated switching frequencies.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	1.3A max (MSOP-8EP); set precisely via external R_SET; ±5% accuracy over temp and line
Input Voltage Range	6V to 36V; includes 5.9V startup threshold and 100–300mV UVLO hysteresis for stable cold-start
Analog Dimming Range	>10:1 (0.25V–2.5V CTRL); linear current scaling down to 10% nominal; non-linear below 0.25V
Switching Frequency	Up to 1MHz; increases as CTRL voltage decreases; fixed-frequency behavior not guaranteed
Efficiency	Up to 96%; measured at 12V input, 2–8 LED strings, 660mA–1A output
Thermal Resistance	θ_JA = 69°C/W (MSOP-8EP on 51mm×51mm 2oz Cu PCB); θ_JC = 4.3°C/W via exposed pad
Protection Features	Open-circuit LED detection, LED-chain short-circuit shutdown, and 150°C over-temperature shutdown with 25°C hysteresis

Pinout & Package

AL8807AMP-13 is packaged in MSOP-8EP (exposed pad), a thermally enhanced 3mm × 3mm surface-mount package requiring GND-connected exposed pad for thermal management and EMI reduction.

Pin/Terminal	Circuit Role	Design Meaning
SW (Pins 5,6)	Power Switch Node	Connects to inductor and freewheeling diode; track length must be minimized to reduce EMI radiation
GND (Pins 2,3)	Ground Reference	Dual GND pins provide low-impedance return path; dominant thermal conduction path via Pin 2
CTRL (Pin 4)	Analog Dimming Input	Internal 50kΩ pull-up to 2.5V VREF; 0.25V–2.5V range sets 10–100% LED current; capacitor here enables soft-start
SET (Pin 1)	Current Sense Reference	Connected to external R_SET between VIN and SET; sets nominal I_LED = 0.1V / R_SET
VIN (Pin 8)	Power Input	6–36V supply input; requires ≥2.2µF X7R ceramic decoupling capacitor directly to GND
EP (Exposed Pad)	Thermal & Electrical Ground	Must be soldered to large GND copper area with thermal vias; not for current conduction but critical for θ_JA = 69°C/W
N/C (Pin 7)	No Connection	Internally unconnected; may be tied to GND for mechanical stability but no electrical function

Key Features

Feature	Design Value
Hysteretic Control Architecture	Maintains CCM across full analog dimming range by dynamically adjusting both upper and lower current thresholds
Controlled SW Edge Rates	12ns rise / 20ns fall times reduce broadband EMI, enabling smaller input/output capacitors and compact layout
Integrated Protection Suite	Auto-shutdown on LED open/short and junction temperature >150°C; automatic restart after 25°C cooldown
Wide Analog Dimming Interface	0.25V–2.5V CTRL range achieves >10:1 dimming without PWM circuitry or external op-amps
Thermally Optimized Package	MSOP-8EP with exposed pad delivers θ_JA = 69°C/W - 3.6× better than SOT25 (250°C/W) under identical PCB conditions

Applications

Architectural LED Strips

Industrial Machine Lighting

Use Scenario: Constant-current driving of 4–8 white LEDs in flexible linear strips for retail display and signage.

IC Role / Device Role / Timing Role: Buck LED driver providing analog-dimmed current regulation; no timing reference required - operation governed by hysteretic current thresholds.

Use Value: Enables smooth 10–100% brightness control using simple DC voltage (0.25–2.5V), eliminating need for microcontroller-based PWM generation and associated EMI filters.

Use Scenario: High-reliability illumination inside CNC enclosures and automated assembly stations where vibration and ambient temperature exceed 85°C.

IC Role / Device Role / Timing Role: Primary LED current controller with integrated open-circuit and over-temperature protection; operates autonomously without feedback loop compensation.

Use Value: Prevents catastrophic failure during LED string breakage or heatsink detachment via immediate shutdown and thermal hysteresis recovery - no external fault monitoring needed.

12V Vehicle Interior Lamps

Emergency Exit Sign Modules

Use Scenario: Direct replacement for incandescent bulbs in 12V automotive cabin lighting, including map lights and footwell illumination.

IC Role / Device Role / Timing Role: Step-down constant-current source tolerant of 6–16V battery transients; no external clock or synchronization required.

Use Value: Delivers 96% efficiency at 12V/660mA, reducing thermal load in sealed lamp housings and extending LED lifetime versus linear regulators.

Use Scenario: Dual-string LED driver in UL 924-compliant exit signs with battery backup and 0–10V dimming interface.

IC Role / Device Role / Timing Role: Primary LED current regulator accepting 0–10V analog signal scaled to 0.25–2.5V CTRL; supports fail-safe dim-to-off behavior.

Use Value: Maintains ±5% current accuracy across 40–85°C ambient, ensuring consistent luminance during extended battery operation without recalibration.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AL8860W6-13	Higher 2A output capability; 2.2MHz fixed-frequency operation; requires external compensation network	Better suited for ultra-compact designs needing higher current and tighter EMI control; lacks AL8807A's wide analog dimming linearity below 0.25V	Select when >1.3A drive or deterministic switching frequency is mandatory; avoid if analog dimming below 10% is required
AL8861W6-13	Includes PWM dimming support alongside analog; same 2A rating and 2.2MHz frequency; adds enable/shutdown pin	Supports hybrid dimming schemes (PWM + analog); more complex control interface but broader system integration flexibility	Choose when system-level firmware requires digital dimming commands or fast on/off sequencing; AL8807A remains optimal for pure analog simplicity

Compared with AL8807AMP-13, AL8860W6-13 trades analog dimming fidelity for higher current and fixed-frequency EMI predictability, while AL8861W6-13 adds digital control overhead to enable synchronized multi-channel dimming - neither matches AL8807A's combination of 10:1 analog linearity, hysteretic simplicity, and thermal efficiency in space-constrained 12–36V lamps.

Availability

AL8807AMP-13 is available at Aetrix Electronics and suitable for architectural LED strips, industrial machine lighting, and 12V vehicle interior lamps requiring stable component supply, RoHS-compliant packaging, and production-ready thermal performance.

Supply support for AL8807AMP-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with emphasis on power management, signal integrity, and lighting control ICs.

The AL8807A belongs to Diodes' high-efficiency LED driver product line, engineered specifically for analog-dimmable, thermally constrained, and EMI-sensitive general illumination applications operating from wide-input industrial and automotive supplies.

FAQ

What is the minimum CTRL voltage for reliable 10% LED current output?

The AL8807AMP-13 guarantees ≤10% nominal LED current at V_CTRL = 0.25V, with typical accuracy degradation beginning below this level. At 0.25V CTRL, the internal sense voltage drops to ~10mV, increasing susceptibility to offset errors and reducing dimming linearity. Operation below 0.25V is functional but not specified for accuracy.

Can AL8807AMP-13 drive 9 LEDs from a 6V input?

No - driving 9 white LEDs (typically 3.2V each, totaling ~28.8V forward voltage) requires minimum input voltage >30V. At 6V input, maximum supported LED count is 1–2 (VF ≈ 3–6V). The 9-LED rating applies only at higher input voltages (e.g., 36V), where sufficient headroom exists for inductor drop and switch losses.

How does thermal performance differ between MSOP-8EP and SOT25 packages?

MSOP-8EP achieves θ_JA = 69°C/W on a 51mm×51mm 2oz Cu PCB, while SOT25 reaches only 250°C/W on a 25mm×25mm 1oz Cu board - a 3.6× improvement. This allows 1.3A continuous operation in MSOP-8EP versus 1A in SOT25 at the same ambient temperature, directly enabling higher-power lamp designs.

Is soft-start implemented internally or externally?

Soft-start is implemented externally via a capacitor from CTRL to GND. The AL8807AMP-13 has no internal soft-start circuit. A 100nF capacitor yields ~4.2ms 90% rise time (from 80mA initial to 667mA final), while 470nF extends it to 42ms - enabling inrush current limiting without additional ICs or control logic.

AL8807AMP-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: DC DC Regulator

Topology:: Step-Down (Buck)

Internal Switch(s):: Yes

Number of Outputs:: 1

Voltage - Supply (Min):: 6V

Voltage - Supply (Max):: 36V

Voltage - Output:: 40V

Current - Output / Channel:: 1.3A (Switch)

Frequency:: 700kHz

Dimming:: Analog

Applications:: -

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP-EP

AL8807AMP-13 FAQ

1.How can I place an order for AL8807AMP-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for AL8807AMP-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 AL8807AMP-13 reliable?

The price and inventory of AL8807AMP-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL8807AMP-13 is usually 5 days.

3.What payment methods are accepted for AL8807AMP-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL8807AMP-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AL8807AMP-13?

AL8807AMP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AL8807AMP-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 AL8807AMP-13?

For technical support, including AL8807AMP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL8807AMP-13 requirements.

6.How does Aetrix verify that AL8807AMP-13 is sourced from the original manufacturer or authorized distributors?

All AL8807AMP-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 AL8807AMP-13 meets industry standards.

7.What is the process for return or replacement of AL8807AMP-13?

All AL8807AMP-13 units undergo pre-shipment inspection (PSI). If there is an issue with AL8807AMP-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 AL8807AMP-13 part is unused and in its original packaging.

Return procedure for AL8807AMP-13:

1.Submit a request within 90 days.

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

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