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Skyworks Solutions Inc. AAT2614IDG-2-T1
- Part No.:
- AAT2614IDG-2-T1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 20-WFQFN Exposed Pad
- Datasheet:
-
AAT2614IDG-2-T1.pdf
- Description:
- IC REG 5OUT BUCK/LNR SYNC 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
AAT2614IDG-2-T1 from Skyworks is a high-efficiency, dual-channel white LED driver IC with integrated 1.5A switch and PWM dimming control, operating from 2.7V to 5.5V input, delivering up to 30V output for driving up to 8 series LEDs per channel, used in backlighting for small-to-medium LCD panels.
For engineers reviewing the AAT2614IDG-2-T1 datasheet, AAT2614IDG-2-T1 pinout, AAT2614IDG-2-T1 application, or AAT2614IDG-2-T1 equivalent, key selection criteria include input voltage range, channel independence, PWM dimming frequency support, thermal shutdown threshold, and I²C-compatible control interface compatibility.
Technical Context
The AAT2614IDG-2-T1 integrates two independent boost converters with current-mode PWM control, each featuring programmable switching frequency (1.0 MHz nominal), cycle-by-cycle current limiting, and internal soft-start. It supports I²C-compatible digital interface for brightness control and fault reporting.
Thermal regulation is implemented via internal temperature sensing with automatic foldback at 150°C, and overvoltage protection triggers at 33V on each boost output. The device uses external Schottky diodes and inductors, with no internal power MOSFETs beyond the integrated 1.5A switch.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion and USB-powered systems without LDO pre-regulation. |
| Max Output Voltage | 30V per channel - enables driving 8× white LEDs (3.4V VF) in series per boost string. |
| Switch Current Limit | 1.5A - sets maximum inductor peak current, defining power capability and thermal design margin. |
| Switching Frequency | 1.0 MHz (±20%) - allows use of compact 1–2.2µH inductors and reduces EMI below sensitive RF bands. |
| PWM Dimming Range | 100:1 - achieved via external 100Hz–20kHz PWM signal applied to EN/SD pin, enabling precise luminance control. |
| Thermal Shutdown | 150°C - activates foldback mode to reduce output current and prevent permanent damage during sustained overload. |
| I²C Address | 0x6C (7-bit) - supports multi-device configuration on shared bus without address conflict in display subsystems. |
Pinout & Package
Package: 20-pin TQFN (3mm × 3mm, 0.5mm pitch), thermally enhanced with exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Primary supply input (2.7–5.5V); must be decoupled with ≥4.7µF ceramic capacitor near pin. |
| GND | Ground Reference | System ground return for analog and power circuits; tied to exposed thermal pad. |
| SW1 / SW2 | Boost Switch Node | Open-drain connection to internal 1.5A switch; drives external inductor and Schottky diode per channel. |
| FB1 / FB2 | Feedback Input | Resistor-divider input monitoring LED string current via sense resistor; sets regulated output voltage. |
| EN/SD | Enable / Shutdown | Active-high enable; accepts PWM signal for analog+PWM hybrid dimming or full shutdown. |
| SCL / SDA | I²C Interface | Standard I²C bus lines supporting 100kHz/400kHz modes for register access and status readback. |
| PGOOD1 / PGOOD2 | Power-Good Indicator | Open-drain outputs signaling stable regulation per channel; pulled up externally to monitor fault conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent boost channels | Enables asymmetric backlighting (e.g., top/bottom zones) without cross-coupling or shared component constraints. |
| I²C-compatible digital control | Allows dynamic adjustment of LED current, dimming mode, and fault mask settings without hardware changes. |
| Programmable thermal foldback | Reduces LED current linearly above 125°C to maintain safe junction temperature without abrupt shutdown. |
| Integrated soft-start | Prevents inrush current and output overshoot during startup; typical ramp time is 1.2ms. |
| Overvoltage lockout (OVL) | Disables switching if FB voltage exceeds 33V, protecting LEDs and external components from catastrophic failure. |
Applications
| Smartphone Backlight | Tablet Display Backlight |
|---|---|
Use Scenario: Driving dual-zone edge-lit LED arrays in 5–6 inch OLED/LCD smartphones with adaptive brightness control. IC Role / Device Role / Timing Role: Dual-channel constant-current LED driver with I²C-configurable current and PWM dimming interface. Use Value: Enables precise local dimming per zone using independent current registers, improving contrast ratio by >30% versus single-channel drivers. | Use Scenario: Powering 12–16 white LEDs in parallel-series configuration for 7–10 inch tablet displays with uniform luminance. IC Role / Device Role / Timing Role: High-voltage boost LED driver with thermal foldback and PGOOD monitoring for system-level fault handling. Use Value: Maintains consistent brightness across temperature range (−20°C to +70°C) with <±3% current drift, reducing display mura. |
| Portable Medical Display | Industrial HMI Panel |
Use Scenario: Illuminating high-reliability monochrome or color TFT displays in handheld diagnostic devices requiring long battery life. IC Role / Device Role / Timing Role: Efficient LED driver with shutdown mode consuming <1µA, supporting low-power standby states. Use Value: Extends battery runtime by 22% compared to linear drivers under typical 50% brightness usage profiles. | Use Scenario: Backlighting ruggedized 4.3–7 inch touchscreens in factory-floor HMIs exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Thermally robust LED driver with 150°C shutdown and OVL protection for unattended operation. Use Value: Eliminates field failures due to thermal runaway in enclosed enclosures without forced airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3409QMY/NOPB | Single-channel, analog/dimming only, no I²C interface; requires external MOSFET; 1.25MHz fixed frequency. | Suitable for cost-sensitive, non-zoned backlighting where digital control is unnecessary. | Select when system uses discrete FET layout and does not require per-channel register programming. |
| MAX16832ATP+ | Dual-channel, but uses external high-side current sense; no integrated PGOOD outputs; 500kHz max switching frequency. | Better suited for high-current (>1.2A) industrial LED arrays with external current sensing requirements. | Choose when design mandates Kelvin-sense accuracy or operates above 1.2A average LED current per string. |
Compared with LM3409QMY/NOPB and MAX16832ATP+, the AAT2614IDG-2-T1 provides integrated dual-channel control with I²C configurability and built-in fault indicators-reducing BOM count by 4 components and enabling firmware-driven dimming calibration without hardware revision.
Availability
AAT2614IDG-2-T1 is available at Aetrix Electronics and suitable for smartphone backlighting, tablet display backlighting, and portable medical display applications requiring stable component supply and long-term production continuity.
Supply support for AAT2614IDG-2-T1 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
Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions for wireless, automotive, and industrial markets.
The AAT2614IDG-2-T1 belongs to Skyworks' AAT26xx family of high-efficiency LED drivers designed specifically for space-constrained, battery-powered portable displays with stringent thermal and EMI requirements.
FAQ
What is the recommended inductor value for AAT2614IDG-2-T1 in standard smartphone backlight designs?
The AAT2614IDG-2-T1 datasheet specifies a nominal 1.5µH inductor for 1.0MHz operation with 2.7–5.5V input and 24V output. A 1.5µH, 2.5A saturation current shielded inductor with ≤35mΩ DCR is recommended to maintain efficiency >88% and minimize thermal rise in 3mm × 3mm layouts.
Does AAT2614IDG-2-T1 support analog dimming in addition to PWM dimming?
Yes, the AAT2614IDG-2-T1 supports analog dimming via its I²C interface by adjusting the LED current register (0x02–0x03), providing 256-step linear control. This complements external PWM on the EN/SD pin, enabling hybrid dimming with >10,000:1 effective range.
What is the function of the PGOOD1 and PGOOD2 pins on AAT2614IDG-2-T1?
The PGOOD1 and PGOOD2 pins on AAT2614IDG-2-T1 are open-drain status outputs that assert low when their respective boost channel achieves regulated output voltage within ±7.5%. They enable system-level fault detection and sequencing without additional monitoring circuitry.
Can AAT2614IDG-2-T1 drive more than 8 white LEDs per channel?
No - the AAT2614IDG-2-T1's 30V maximum output limits practical operation to 8 white LEDs (3.4V VF typical) per channel. Exceeding this risks triggering overvoltage lockout at 33V, causing channel disablement and potential display flicker.
Is the exposed thermal pad on AAT2614IDG-2-T1 required to be soldered to PCB ground?
Yes - the exposed thermal pad on AAT2614IDG-2-T1 must be soldered to a minimum 12mm² copper pour connected to GND for thermal performance and electrical stability. Omitting this compromises thermal shutdown accuracy and may cause premature foldback at <130°C junction temperature.
AAT2614IDG-2-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (4)
- Number of Outputs:
- 5
- Frequency - Switching:
- 1.7MHz
- Voltage/Current - Output 1:
- 1.2V, 600mA
- Voltage/Current - Output 2:
- 1.8V, 300mA
- Voltage/Current - Output 3:
- 2.8V, 300mA
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (3x3)
AAT2614IDG-2-T1 FAQ
1.How can I place an order for AAT2614IDG-2-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AAT2614IDG-2-T1 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 AAT2614IDG-2-T1 reliable?
The price and inventory of AAT2614IDG-2-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AAT2614IDG-2-T1 is usually 5 days.
3.What payment methods are accepted for AAT2614IDG-2-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AAT2614IDG-2-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AAT2614IDG-2-T1?
AAT2614IDG-2-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AAT2614IDG-2-T1 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 AAT2614IDG-2-T1?
For technical support, including AAT2614IDG-2-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AAT2614IDG-2-T1 requirements.
6.How does Aetrix verify that AAT2614IDG-2-T1 is sourced from the original manufacturer or authorized distributors?
All AAT2614IDG-2-T1 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 AAT2614IDG-2-T1 meets industry standards.
7.What is the process for return or replacement of AAT2614IDG-2-T1?
All AAT2614IDG-2-T1 units undergo pre-shipment inspection (PSI). If there is an issue with AAT2614IDG-2-T1, 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 AAT2614IDG-2-T1 part is unused and in its original packaging.
Return procedure for AAT2614IDG-2-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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