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Texas Instruments LM3410XSDE/NOPB
- Part No.:
- LM3410XSDE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
LM3410XSDE/NOPB.pdf
- Description:
- IC LED DRVR RGLTR PWM 2.8A 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:410
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Product details
Overview
LM3410XSDE/NOPB from Texas Instruments is a 1.6-MHz constant-current boost/SEPIC LED driver IC with internal NMOS switch (170 mΩ), 190-mV feedback reference, and PWM dimming capability. It operates from 2.7 V to 5.5 V input, delivers up to 24 V output, and regulates LED current via external sense resistor-used in automotive LED backlighting and handheld flash applications.
For engineers reviewing the LM3410XSDE/NOPB datasheet, LM3410XSDE/NOPB pinout, LM3410XSDE/NOPB application, or LM3410XSDE/NOPB equivalent, key selection criteria include switching frequency (1.6 MHz), internal compensation, thermal shutdown (165°C), cycle-by-cycle current limit (2.8 A typ), and AEC-Q100 Grade 1 qualification for –40°C to 125°C ambient operation.
Technical Context
The LM3410XSDE/NOPB implements current-mode PWM control with fixed 1.6-MHz oscillator, internal soft start, and cycle-by-cycle overcurrent protection. Its 170-mΩ NMOS switch enables high-efficiency boost conversion while maintaining stable regulation under varying LED forward voltage and input supply conditions.
It uses internal compensation and a 190-mV precision reference to set LED current via FB pin voltage across an external sense resistor. The DIM pin accepts 0–100% duty-cycle PWM signals (1 Hz–25 kHz) for brightness control without external circuitry, and supports ultra-low shutdown current (80 nA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching frequency | 1.6 MHz - enables use of sub-2.2 µH inductors and compact ceramic capacitors |
| Feedback reference voltage | 190 mV ±12 mV - sets LED current accuracy via external RSET = 0.19 V / ILED |
| Internal switch RDS(on) | 170 mΩ (typ) - limits conduction loss at peak 2.8-A switch current |
| Input voltage range | 2.7 V to 5.5 V - compatible with single-cell Li-ion and USB-powered systems |
| Output voltage capability | Up to 24 V - supports series strings of 6+ white LEDs or HB/OLED loads |
| Thermal shutdown threshold | 165°C - protects device during overload or poor PCB thermal design |
| Shutdown quiescent current | 80 nA - preserves battery life in always-on portable devices |
Pinout & Package
LM3410XSDE/NOPB is housed in a thermally enhanced 6-pin WSON package (3.0 mm × 3.0 mm, 0.8-mm height) with exposed die attach pad (DAP) for low thermal resistance (RθJA = 55.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node output | Connects to inductor and diode anode; carries high-frequency pulsed current up to 2.8 A peak |
| 2 VIN | Power input | Supplies internal regulator and NMOS gate drive; requires local 2.2–22 µF ceramic bypass |
| 3 FB | Current-sense feedback | Monitors voltage across external RSET; regulates LED current to maintain 190 mV at this pin |
| 4 DIM | PWM dimming/shutdown control | Logic-high (>1.8 V) enables operation; 0–100% PWM duty cycle controls average LED brightness |
| 5 GND | Signal ground | Reference for FB and DIM; place bottom RSET as close as possible to minimize noise coupling |
| DAP | Die attach pad | Must be soldered to PCB ground plane with ≥4 vias; primary thermal path for power dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.6-MHz switching | Eliminates external frequency-setting components and enables <2.2 µH inductors for space-constrained designs |
| Internal compensation | Reduces BOM count to only 5 external parts (inductor, diode, input/output caps, RSET) in typical boost configuration |
| AEC-Q100 Grade 1 qualified | Validated for automotive ambient temperatures (–40°C to +125°C), HBM ±2 kV, CDM ±1 kV |
| 190-mV precision reference | Enables ±6% LED current accuracy over temperature and line without trimming or calibration |
| Ultra-low shutdown current | 80 nA draw allows >1-year battery standby in flash-enabled handhelds using coin-cell or Li-ion sources |
Applications
| Automotive LED Headlight Modules | Portable Medical Device Backlights |
|---|---|
|
Use Scenario: Driving 4–6 white LEDs in series from 12-V automotive rail with transient suppression and thermal margin. IC Role / Device Role / Timing Role: Constant-current boost controller regulating LED string current via FB pin; 1.6-MHz switching avoids AM radio band interference. Use Value: AEC-Q100 qualification ensures reliability in under-hood environments; internal 170-mΩ switch reduces heatsink requirements vs discrete solutions. |
Use Scenario: Powering high-contrast OLED display backlights in battery-operated diagnostic tools requiring precise dimming and long runtime. IC Role / Device Role / Timing Role: SEPIC-configured current source delivering stable 20–100 mA over 2.7–4.5 V Li-ion discharge curve. Use Value: 80-nA shutdown current extends battery life; 190-mV reference enables <±5% brightness consistency across operating temperature. |
| Smartphone LED Flash Drivers | Industrial Handheld Scanner Illumination |
|
Use Scenario: Delivering 1-A peak flash current to dual white LEDs with programmable duration and intensity via host MCU PWM on DIM pin. IC Role / Device Role / Timing Role: High-current boost driver with cycle-by-cycle current limiting and thermal shutdown to prevent LED damage during burst mode. Use Value: 2.8-A switch current limit supports 1-A LED pulses; 1.6-MHz operation minimizes EMI filtering complexity in RF-sensitive mobile layouts. |
Use Scenario: Illuminating linear CCD sensors in rugged barcode scanners powered by 3.3-V industrial rails with wide temperature variation. IC Role / Device Role / Timing Role: Constant-current source driving 3-series red LEDs with robust ESD protection (HBM ±2 kV) for factory-floor handling. Use Value: Internal soft start prevents inrush-induced voltage droop on shared 3.3-V rail; WSON package withstands mechanical shock and thermal cycling. |
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 |
|---|---|---|---|
| LM3410YSD/NOPB | 525-kHz switching frequency; higher RDS(on) (190 mΩ typ in WSON); same pinout and FB reference | Better efficiency at medium loads due to lower switching loss; requires larger inductor (≥4.7 µH) | Select when board space allows larger magnetics and EMI sensitivity is low |
| TPS61165DRVR | 1.2-MHz fixed frequency; 2-A switch current limit; 200-mV reference; no AEC-Q100 qualification | Lacks automotive qualification; supports analog + PWM dimming; smaller 6-pin WSON (2.0 × 2.0 mm) | Choose for cost-sensitive consumer portables where Grade 1 temp range is not required |
Compared with LM3410XSDE/NOPB, the LM3410YSD/NOPB trades higher efficiency at lower frequencies for larger passive size, while the TPS61165DRVR offers smaller footprint and dual-dimming but omits automotive qualification and thermal robustness.
Availability
LM3410XSDE/NOPB is available at Aetrix Electronics and suitable for automotive lighting modules, portable medical displays, smartphone flash circuits, and industrial scanner illumination requiring stable component supply and long-term lifecycle support.
Supply support for LM3410XSDE/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, embedded processing, and digital signal technologies, with leadership in power management and automotive-grade ICs.
The LM3410 product line delivers highly integrated, frequency-fixed LED drivers optimized for space-constrained, high-reliability applications including automotive lighting, portable electronics, and industrial human-machine interfaces.
FAQ
What is the maximum output voltage supported by the LM3410XSDE/NOPB?
The LM3410XSDE/NOPB supports output voltages up to 24 V, as confirmed by its absolute maximum SW pin rating of 26.5 V and recommended operating VSW range of 3 V to 24 V. This enables driving 6–8 white LEDs in series or high-voltage OLED panels. Exceeding 24 V risks violating safe operating area limits and triggering overvoltage stress on internal components.
How does the LM3410XSDE/NOPB regulate LED current without a current-sense amplifier?
The LM3410XSDE/NOPB regulates LED current by maintaining a fixed 190-mV voltage at the FB pin using an internal error amplifier and current-mode PWM control. An external resistor (RSET) connects FB to GND, so ILED = 0.19 V / RSET. No external sense amplifier is needed-the IC's internal architecture directly compares FB voltage to its precision reference.
Can the LM3410XSDE/NOPB be used in SEPIC topology, and what changes are required?
Yes, the LM3410XSDE/NOPB supports SEPIC configuration per TI's Application Note SNVS541H. Required changes include adding a second inductor (L2), coupling capacitor (C2), and re-routing connections per Figure 15. No IC configuration change is needed-the same LM3410XSDE/NOPB operates identically in boost or SEPIC mode based on external component layout.
What is the purpose of the DAP (die attach pad) on the LM3410XSDE/NOPB WSON package?
The DAP on the LM3410XSDE/NOPB serves as the primary thermal and electrical ground connection. It must be soldered to the PCB ground plane with at least four thermal vias to achieve the specified RθJA of 55.3°C/W. Leaving it unconnected degrades thermal performance by >40°C/W and risks thermal shutdown under moderate load.
Does the LM3410XSDE/NOPB support analog dimming, or only PWM dimming?
The LM3410XSDE/NOPB supports only PWM dimming via the DIM pin, which accepts logic-level signals (0–100% duty cycle, 1 Hz–25 kHz). It does not support analog dimming-applying variable DC voltage to DIM will not proportionally adjust LED current. For analog control, external circuitry (e.g., DAC + transistor) would be required to convert voltage to PWM.
LM3410XSDE/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)
LM3410XSDE/NOPB FAQ
1.How can I place an order for LM3410XSDE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410XSDE/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 LM3410XSDE/NOPB reliable?
The price and inventory of LM3410XSDE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410XSDE/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410XSDE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410XSDE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410XSDE/NOPB?
LM3410XSDE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410XSDE/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 LM3410XSDE/NOPB?
For technical support, including LM3410XSDE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410XSDE/NOPB requirements.
6.How does Aetrix verify that LM3410XSDE/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410XSDE/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 LM3410XSDE/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410XSDE/NOPB?
All LM3410XSDE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410XSDE/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 LM3410XSDE/NOPB part is unused and in its original packaging.
Return procedure for LM3410XSDE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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