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Texas Instruments LM3410XSDX/NOPB
- Part No.:
- LM3410XSDX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
LM3410XSDX/NOPB.pdf
- Description:
- IC LED DRVR RGLTR PWM 2.8A 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,825
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Product details
Overview
LM3410XSDX/NOPB from Texas Instruments is a 1.6-MHz constant-current boost/SEPIC LED driver IC with internal NMOS switch, 190-mV feedback reference, and PWM dimming control. It delivers up to 2.8-A peak switch current, supports 2.7–5.5-V input and 3–24-V output, and targets high-brightness LED backlighting in handheld and automotive displays.
For engineers reviewing the LM3410XSDX/NOPB datasheet, LM3410XSDX/NOPB pinout, LM3410XSDX/NOPB application, or LM3410XSDX/NOPB equivalent, key selection criteria include switching frequency (1.6 MHz), internal compensation, thermal shutdown (165°C), soft-start, and compatibility with ceramic output capacitors in space-constrained LED driver designs.
Technical Context
The LM3410XSDX/NOPB implements current-mode PWM control with an internally compensated error amplifier and fixed 1.6-MHz oscillator. Its cycle-by-cycle current limiting protects the 170-mΩ NMOS switch during transient overloads, while the 190-mV VFB reference enables precise LED current regulation via external sense resistor.
It operates in boost or SEPIC topology with internal soft-start and ultra-low 80-nA shutdown current. DIM pin accepts 0–100% duty-cycle PWM signals (1 Hz–25 kHz) for analog-equivalent brightness control without external DACs or current-setting DACs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching frequency | 1.6 MHz - Enables use of sub-2.2-µH inductors and 0.47-µF ceramic output capacitors, reducing board area by >40% vs 525-kHz variants. |
| Feedback voltage (VFB) | 190 mV - Sets LED current via RSET = 190 mV / ILED; stable across –40°C to 125°C with ±12 mV tolerance. |
| Switch on-resistance | 170 mΩ (typ) - Limits conduction loss at 2.8-A peak; supports >88% efficiency in typical 5-V-in/12-V-out LED boost configurations. |
| Input voltage range | 2.7 V to 5.5 V - Matches single-cell Li-ion (2.7–4.5 V) and USB-powered systems without pre-regulation. |
| Output voltage range | 3 V to 24 V - Supports up to 7-series white LEDs (VF ≈ 3.4 V) or OLED bias rails in portable displays. |
| Thermal shutdown | 165°C - Protects die under sustained overload; auto-recovery at ~150°C junction temperature. |
| Shutdown current | 80 nA - Enables battery-backed always-on dimming control without measurable drain on coin cells. |
Pinout & Package
LM3410XSDX/NOPB uses a 6-pin WSON package (3.00 mm × 3.00 mm, 0.5-mm pitch) with exposed thermal pad (DAP) for enhanced power dissipation. The DAP must be connected to PGND via ≥4 vias to bottom-layer ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SW | Switch node output | Drives inductor in boost/SEPIC topologies; swings from GND to VOUT + VF(D1); requires low-inductance layout to minimize EMI. |
| 2 - GND | Signal ground | Reference for FB and DIM; place bottom resistor of feedback divider adjacent to this pin to reduce noise coupling. |
| 3 - FB | Current-sense feedback input | Monitors voltage across RSET; regulates LED current to maintain 190 mV; high-impedance (≤1 µA bias) for minimal divider loss. |
| 4 - DIM | PWM dimming/shutdown control | Logic-high (>1.8 V) enables operation; 0–100% PWM duty cycle directly scales average LED current; max 7-V absolute rating. |
| 5 - VIN | Power supply input | Supplies internal LDO and gate driver; requires local 2.2–22-µF ceramic bypass capacitor near pin to suppress switching transients. |
| DAP | Die attach pad (thermal & power ground) | Must be soldered to PCB ground plane; primary thermal path; contributes to RθJA = 55.3°C/W (0 LFPM air flow). |
Key Features
| Feature | Design Value |
|---|---|
| Internal compensation | Eliminates need for external compensation network; reduces BOM count by ≥2 components and simplifies layout validation. |
| 1.6-MHz fixed-frequency PWM | Enables <1.0-mm-height inductor selection (e.g., 1.5 µH) and avoids audible noise in consumer displays. |
| 190-mV precision feedback reference | Supports ±3% LED current accuracy over temperature and line; eliminates need for trimming or calibration in production. |
| Integrated 170-mΩ NMOS switch | Reduces external component count vs controller-only solutions; enables compact 5-mm² total solution size including passives. |
| PWM dimming interface | Accepts industry-standard 100-Hz–25-kHz PWM signals; no external level-shifting required for MCU GPIO direct drive. |
Applications
| Smartphone Backlight | Automotive Instrument Cluster |
|---|---|
Use Scenario: Driving 4–6 series white LEDs (12–20 V) from 3.7-V Li-ion battery in narrow bezel smartphone display. IC Role / Device Role / Timing Role: Constant-current boost regulator with 1.6-MHz switching and PWM dimming interface. Use Value: Enables <0.8-mm-thick inductor placement and eliminates external compensation, reducing total height and layer count. |
Use Scenario: Powering segmented red/green LED arrays in AEC-Q100 Grade 1 instrument clusters (–40°C to 125°C ambient). IC Role / Device Role / Timing Role: Automotive-qualified constant-current LED driver with thermal shutdown and HBM ESD protection. Use Value: Qualified per AEC-Q100 with 165°C thermal shutdown ensures reliability in sealed dashboard enclosures. |
| Portable Medical Display | OLED Bias Supply |
Use Scenario: Providing stable 15-V bias for monochrome OLED panels in handheld diagnostic devices with battery life >8 hrs. IC Role / Device Role / Timing Role: High-efficiency SEPIC LED driver supporting input voltage down to 2.7 V during battery discharge. Use Value: Maintains regulated current as battery drops from 4.2 V to 2.7 V-no brownout-induced flicker or brightness shift. |
Use Scenario: Generating 18-V anode bias and –5-V cathode bias for active-matrix OLED (AMOLED) panels in wearables. IC Role / Device Role / Timing Role: Boost converter configured for high-voltage, low-noise OLED bias with ceramic capacitor filtering. Use Value: 1.6-MHz operation minimizes EMI coupling into sensitive pixel drivers; 88% efficiency extends battery runtime. |
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 |
|---|---|---|---|
| LM3410YSDX/NOPB | 525-kHz switching frequency; higher RDS(ON) (190 mΩ typ); lower quiescent current (3.4 mA vs 7 mA) | Better suited for cost-sensitive, non-audio-sensitive applications where larger inductors are acceptable | Select when board area is less constrained and EMI filtering requirements are relaxed. |
| TPS61165DRVR | 1.2-MHz switching; integrated 2-A switch; 200-mV VFB; no internal compensation (requires external RC network) | Requires additional compensation components but offers adjustable frequency and higher output voltage (38 V) | Choose when >24-V output or programmable frequency is required, accepting added design complexity. |
Compared with LM3410XSDX/NOPB, LM3410YSDX/NOPB trades higher inductor size for lower operating current, while TPS61165DRVR adds flexibility at the cost of BOM count and layout effort-making LM3410XSDX/NOPB optimal for compact, production-ready LED boost designs.
Availability
LM3410XSDX/NOPB is available at Aetrix Electronics and suitable for smartphone backlighting, automotive instrument clusters, portable medical displays, and OLED bias supplies requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM3410XSDX/NOPB 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
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in power management, signal chain, and high-reliability ICs.
The LM3410 family was designed specifically for space-constrained, high-efficiency constant-current LED driving in portable and automotive applications-emphasizing integration, thermal robustness, and simplified system-level design.
FAQ
What is the maximum LED string voltage supported by LM3410XSDX/NOPB?
The LM3410XSDX/NOPB supports output voltages up to 24 V, enabling up to seven 3.4-V white LEDs in series. This limit is defined by the absolute maximum SW pin voltage rating of 26.5 V and the recommended operating condition of VSW ≤ 24 V. Exceeding 24 V risks violating safe operating area margins and triggering overvoltage stress.
Does LM3410XSDX/NOPB require external compensation components?
No, LM3410XSDX/NOPB features internal compensation, eliminating the need for external RC networks typically required in controller-based LED drivers. This simplifies design, reduces bill-of-materials count, and improves stability across input voltage and load variations without tuning.
Can LM3410XSDX/NOPB operate in SEPIC topology?
Yes, LM3410XSDX/NOPB supports SEPIC configuration per TI's Application Report SNVA262. It regulates LED current in both boost and SEPIC modes using the same internal current-mode control loop, making it suitable for Li-ion battery applications where input voltage may fall below or rise above the LED string voltage.
What is the purpose of the DAP (die attach pad) on LM3410XSDX/NOPB?
The DAP on LM3410XSDX/NOPB serves as the primary thermal and electrical ground connection. It must be soldered to the PCB ground plane using ≥4 thermal vias to ensure RθJA = 55.3°C/W and reliable operation at full load. Leaving the DAP unconnected causes thermal shutdown under moderate current conditions.
How does the DIM pin function in LM3410XSDX/NOPB?
The DIM pin on LM3410XSDX/NOPB accepts PWM signals (1 Hz–25 kHz) to control average LED current from 0% to 100%. A logic-high voltage (>1.8 V) enables operation; duty cycle directly scales LED brightness. It also serves as shutdown control-pulling DIM to GND reduces quiescent current to 80 nA.
LM3410XSDX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- SEPIC, Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.7V
- Voltage - Supply (Max):
- 5.5V
- Voltage - Output:
- 3V ~ 24V
- Current - Output / Channel:
- 2.8A (Switch)
- Frequency:
- 1.6MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (3x3)
LM3410XSDX/NOPB FAQ
1.How can I place an order for LM3410XSDX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410XSDX/NOPB 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 LM3410XSDX/NOPB reliable?
The price and inventory of LM3410XSDX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410XSDX/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410XSDX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410XSDX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410XSDX/NOPB?
LM3410XSDX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410XSDX/NOPB 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 LM3410XSDX/NOPB?
For technical support, including LM3410XSDX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410XSDX/NOPB requirements.
6.How does Aetrix verify that LM3410XSDX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410XSDX/NOPB 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 LM3410XSDX/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410XSDX/NOPB?
All LM3410XSDX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410XSDX/NOPB, 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 LM3410XSDX/NOPB part is unused and in its original packaging.
Return procedure for LM3410XSDX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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