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Diodes Incorporated AL3069S16-13
- Part No.:
- AL3069S16-13
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- -
- Datasheet:
-
AL3069S16-13.pdf
- Description:
- LED BACKLIGHT LAPTOP/TV SO-16 T&
- Quantity:
- Payment:
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Inventory:1,754
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Product details
Overview
AL3069S16-13 from Diodes Incorporated is a four-channel boost LED driver IC designed for WLED backlight systems in LCD displays. It operates from 4.5V to 60V input, delivers up to 400mA per channel with ±0.5% typical current matching, supports dual dimming modes (direct PWM and PWM-to-analog), and integrates robust protection including OVP, OTP, LED open/short, and Schottky diode fault detection. Used in LCD TVs and monitor backlight units.
For engineers reviewing the AL3069S16-13 datasheet, AL3069S16-13 pinout, AL3069S16-13 application, or AL3069S16-13 equivalent, this page provides verified technical context, SO-16 package mapping, real-world dimming performance data (1/5000 min duty at 100Hz), thermal shutdown at +160°C, and validated alternative part comparisons for WLED boost driver selection.
Technical Context
The AL3069S16-13 implements a current-mode boost controller architecture with four independent current-sink channels, each driven by a shared external nMOSFET via the OUT gate driver. Its internal oscillator allows programmable switching frequency (0.1–1 MHz) via RT-to-GND resistor, enabling optimization between component size and efficiency.
It features two dedicated dimming control paths: PWMD accepts low-frequency PWM (0.1–2 kHz) for direct channel on/off control, while PWMA accepts high-frequency PWM (5–100 kHz) for analog dimming conversion via internal RC filtering. Current regulation is set by ISET-to-GND resistor, with channel voltage compliance up to 80V and leakage <1 µA at 37V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports wide-range industrial and automotive supply rails without pre-regulation. |
| Max Channel Current | 400mA - enables driving high-brightness LED strings or paralleling channels for >400mA total. |
| Current Matching | ±0.5% (typ) - ensures uniform brightness across multiple display zones without software calibration. |
| Dimming Resolution | 1/5000 min PWM duty at 100Hz - achieves deep dimming down to 0.02% brightness with minimal flicker. |
| Switching Frequency | 0.1MHz to 1MHz - selectable via RT resistor to balance inductor size vs. conduction loss. |
| OVP Threshold | 2.0V ±0.1V - triggers shutdown when output overvoltage exceeds safe LED string voltage limits. |
| Thermal Shutdown | +160°C ±5°C - latches off during sustained overload, preventing MOSFET or IC damage. |
| ESD Rating | 4kV HBM - meets industrial handling requirements without additional board-level protection. |
Pinout & Package
AL3069S16-13 is packaged in SO-16 (JEDEC MS-012AC) with exposed pad not connected internally. Pin functions are validated per Diodes Inc. Rev. 3 datasheet (July 2024).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH1–CH4 | LED current sink outputs | Four independent high-voltage (−0.3V to +80V) sinks; open-circuit tolerant with auto-disable on startup if unused. |
| ISET | Current reference programming | Connects to GND via resistor to set max per-channel current (20–400mA); tolerance directly impacts brightness accuracy. |
| OVP | Overvoltage sense input | Monitors output divider; trips at 2.0V to disable boost switch-critical for open-string safety in LCD backlights. |
| RT | Oscillator frequency control | Resistor to GND sets fSW (0.1–1 MHz); lower values increase frequency, reducing inductor size but raising switching loss. |
| EN | Enable/disable logic input | Active-high (2.4V threshold); draws <1µA in shutdown-enables system-level power sequencing and standby control. |
| CS | Current sense input | Monitors MOSFET source voltage; triggers cycle-by-cycle OCP at 540mV-protects against inductor saturation or shorted LEDs. |
| OUT | Gate driver output | 5V push-pull output drives external nMOSFET gate; rise/fall time ≤30ns into 1nF load ensures fast switching transitions. |
| PWMA / PWMD | Dual dimming control inputs | PWMA: high-freq PWM input (5–100 kHz) for analog dimming; PWMD: low-freq PWM (0.1–2 kHz) for direct channel blanking. |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel current matching | ±0.5% typical - eliminates visible luminance variation across multi-zone LCD backlights without trimming. |
| Two independent dimming modes | Direct PWM (PWMD) and PWM-to-analog (PWMA) - enables flexible system integration with MCU GPIO or dedicated dimming controllers. |
| Programmable OVP threshold | 2.0V with 200mV hysteresis - configurable via external resistor divider to match exact LED string Vf and safety margin. |
| Comprehensive fault protection | OVP, OTP, LED open/short, Schottky diode fault, inductor short, VOUT short - reduces need for external monitoring circuitry. |
| High-voltage channel tolerance | CHx pins rated to 80V - supports series-connected LED strings up to ~60V forward drop with headroom. |
| Lead-free & halogen-free | RoHS 3 compliant, <900ppm Br/Cl, <1000ppm Sb - meets global environmental compliance for consumer and industrial displays. |
Applications
| LCD TV Backlight | LCD Monitor Backlight |
|---|---|
|
Use Scenario: Driving 4 parallel WLED strings in edge-lit or direct-lit LCD TV panels with local dimming zones. IC Role / Device Role / Timing Role: Four-channel current sink with synchronized PWM dimming control and OVP-triggered shutdown on string failure. Use Value: Enables uniform brightness across large panels with <±0.5% current mismatch, eliminating visible banding during video playback. |
Use Scenario: Powering dual-zone WLED backlight in 24–32" professional monitors requiring flicker-free dimming. IC Role / Device Role / Timing Role: Dual-channel operation (CH1+CH2 tied, CH3+CH4 tied) with PWMD-driven 100Hz PWM dimming. Use Value: Achieves 1/5000 minimum duty cycle at 100Hz-supports low-frequency dimming without perceptible flicker per IEEE 1789. |
| LCD Display Module | Industrial HMI Display |
|
Use Scenario: Compact 10–15" LCD display modules used in kiosks, medical devices, and point-of-sale terminals. IC Role / Device Role / Timing Role: Single-channel configuration (all CHx tied) with ISET resistor set for 100mA total, using PWMA for smooth analog dimming. Use Value: Reduces BOM count by eliminating external DAC or op-amp dimming circuitry while maintaining 10-bit+ effective resolution. |
Use Scenario: Ruggedized 7–12" HMI displays operating in extended temperature ranges (−40°C to +85°C ambient). IC Role / Device Role / Timing Role: Full four-channel operation with OTP (+160°C) and UVLO (4.0V) ensuring reliable startup under cold cranking or brownout. Use Value: Maintains stable LED current across full industrial temp range with <1% drift-critical for consistent UI visibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar four-channel WLED boost driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ3367-AEC1 (Monolithic Power) | AEC-Q100 qualified; integrated MOSFET; fixed 2.2MHz fSW; no PWMA/PWMD dual-dimming separation. | Automotive-grade only; lacks programmable OVP and external MOSFET flexibility for high-Vf strings. | Select when AEC-Q100 compliance is mandatory and output voltage ≤45V; avoid for >60V input or custom OVP thresholds. |
| LM3409QMYX/NOPB (TI) | Single-channel controller; requires external current mirrors for multi-string; no integrated dimming logic or OVP pin. | Needs discrete PWM-to-analog circuitry and external OVP comparator-increases BOM and layout complexity. | Select only for cost-sensitive, single-string designs where channel count and dimming integration are secondary. |
Compared with MPQ3367-AEC1 and LM3409QMYX/NOPB, AL3069S16-13 uniquely combines four independent current sinks, dual-dimming path separation, programmable OVP, and 60V input capability-making it optimal for industrial and commercial LCD backlight designs requiring flexibility, reliability, and minimal external components.
Availability
AL3069S16-13 is available at Aetrix Electronics and suitable for LCD TV backlight units, industrial HMI displays, and medical monitor backlight systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AL3069S16-13 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 ICs for power management, signal integrity, and lighting applications.
The AL3069 belongs to Diodes' WLED backlight driver product line, engineered specifically for high-efficiency, multi-string LCD display illumination with integrated protection and flexible dimming control.
FAQ
What is the maximum LED string voltage supported by AL3069S16-13?
The CH1–CH4 pins tolerate up to +80V, and the OVP pin supports voltage dividers configured for output voltages exceeding 60V. With proper ROV1/ROV2 selection, the device reliably regulates up to ~75V VOUT while maintaining 2.0V OVP threshold-sufficient for 20+ white LEDs in series at 3.5V each.
Can AL3069S16-13 drive more than four LED strings?
Yes-by paralleling channels (e.g., CH1+CH2 for one string, CH3+CH4 for another), it supports up to two high-current strings at 500mA each. For three strings, tie CH1–CH3 individually and leave CH4 open; for single-string use, connect all four CHx pins together and scale ISET to ¼ target current.
How does the AL3069S16-13 handle LED open-circuit faults?
During startup, an open string causes its CHx pin voltage to fall below 100mV, triggering automatic channel disable while others remain active. If all strings open, OVP trips at 2.0V and the IC latches off-requiring VIN or EN toggle to reset. No external circuitry is needed for basic open-string recovery.
Is AL3069S16-13 suitable for automotive display applications?
While AL3069S16-13 meets key electrical specs for automotive (−40°C to +85°C, 60V input, AEC-Q100-compatible protection), it is not AEC-Q100 qualified. Diodes offers automotive-grade variants (e.g., AL3069Q) with PPAP documentation and IATF 16949 manufacturing-contact Diodes directly for qualified versions.
AL3069S16-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Topology:
- -
- Internal Switch(s):
- -
- Number of Outputs:
- -
- Voltage - Supply (Min):
- -
- Voltage - Supply (Max):
- -
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
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- Grade:
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- Qualification:
- -
- Mounting Type:
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- Supplier Device Package:
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AL3069S16-13 FAQ
1.How can I place an order for AL3069S16-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL3069S16-13 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 AL3069S16-13 reliable?
The price and inventory of AL3069S16-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL3069S16-13 is usually 5 days.
3.What payment methods are accepted for AL3069S16-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL3069S16-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL3069S16-13?
AL3069S16-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL3069S16-13 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 AL3069S16-13?
For technical support, including AL3069S16-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL3069S16-13 requirements.
6.How does Aetrix verify that AL3069S16-13 is sourced from the original manufacturer or authorized distributors?
All AL3069S16-13 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 AL3069S16-13 meets industry standards.
7.What is the process for return or replacement of AL3069S16-13?
All AL3069S16-13 units undergo pre-shipment inspection (PSI). If there is an issue with AL3069S16-13, 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 AL3069S16-13 part is unused and in its original packaging.
Return procedure for AL3069S16-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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