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Texas Instruments LM3410XSD/NOPB
- Part No.:
- LM3410XSD/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
LM3410XSD/NOPB.pdf
- Description:
- IC LED DRVR RGLTR PWM 2.8A 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,496
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Product details
Overview
LM3410XSD/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 LM3410XSD/NOPB datasheet, LM3410XSD/NOPB pinout, LM3410XSD/NOPB application, or LM3410XSD/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 typical), and AEC-Q100 Grade 1 qualification for –40°C to 125°C ambient operation.
Technical Context
The LM3410XSD/NOPB implements current-mode PWM control with fixed 1.6-MHz oscillator, internal soft start, and cycle-by-cycle peak current limiting. Its error amplifier compares FB voltage against 190-mV internal reference to adjust duty cycle and maintain constant LED current.
It supports both boost and SEPIC topologies using minimal external components: single inductor (boost) or coupled inductors (SEPIC), Schottky diode, input/output capacitors, and feedback resistor. DIM pin accepts 1 Hz–25 kHz PWM for brightness control with 80 nA shutdown current.
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 via RSET = 0.19 V / ILED |
| Internal Switch RDS(on) | 170 mΩ (typ) - limits conduction loss at 2.8-A peak switch current |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion and USB-powered systems |
| Output Voltage Range | 3 V to 24 V - supports 1–7 white LEDs in series (VF ≈ 3.3 V each) |
| Thermal Shutdown Threshold | 165°C - protects device under overload or poor PCB thermal design |
| Shutdown Current | 80 nA - enables ultra-low-power system standby mode |
Pinout & Package
LM3410XSD/NOPB is housed in a 6-pin WSON package (3.00 mm × 3.00 mm, 0.65 mm pitch) with exposed thermal pad (DAP) connected to GND for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node output | Drives inductor anode; swings from GND to VOUT + VF(D1); requires low-inductance layout |
| 2 GND | Signal ground | Reference for FB and DIM; place bottom FB resistor adjacent to this pin |
| 3 FB | Current-sense feedback input | Monitors voltage across RSET; regulates ILED = 0.19 V / RSET |
| 4 DIM | PWM dimming/shutdown control | Logic-high enables operation; 0–100% duty cycle controls average LED current; max 7 V absolute rating |
| 5 VIN | Power supply input | Supplies internal bias and NMOS gate drive; bypass with ≥2.2 µF ceramic capacitor near pin |
| DAP | Thermal pad / power ground | Must be soldered to PCB GND plane with 4–6 vias; primary path for heat removal |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 1.6-MHz switching | Enables <2.2 µH inductors and eliminates audible noise in portable lighting |
| Internal compensation | Reduces external component count to 5: inductor, diode, input cap, output cap, RSET |
| AEC-Q100 Grade 1 | Qualified for automotive cabin lighting and instrument cluster backlighting (–40°C to 125°C) |
| 190-mV precision reference | Provides ±6% LED current accuracy over temperature and line without trimming |
| PWM dimming interface | Supports 200 Hz–1 kHz for flicker-free dimming down to µA-level LED currents |
Applications
| Automotive Instrument Cluster Backlight | Smartphone LED Flash |
|---|---|
|
Use Scenario: Driving 4–6 white LEDs in series behind TFT LCD for dashboard illumination under varying battery voltage (9–16 V). IC Role / Device Role / Timing Role: Constant-current boost controller regulating LED string current at 20–30 mA with 1.6-MHz switching to minimize EMI in safety-critical cockpit electronics. Use Value: AEC-Q100 qualification ensures reliability; internal compensation simplifies layout; thermal shutdown prevents fault propagation during LED open-circuit events. |
Use Scenario: High-brightness flash for smartphone rear camera, activated for ≤500 ms with precise current control. IC Role / Device Role / Timing Role: SEPIC-configured LED driver accepting 3.0–4.2 V Li-ion input while delivering regulated 12 V / 1.5 A pulse to LED array. Use Value: 1.6-MHz operation allows tiny 1.0 µH inductor; 80 nA shutdown current preserves battery life between photo sessions. |
| Industrial Handheld Scanner Illumination | OLED Display Power Supply |
|
Use Scenario: Uniform linear LED bar illumination for barcode scanning in warehouse handhelds powered by 3.7 V Li-ion. IC Role / Device Role / Timing Role: Boost converter driving 3-series LEDs at 100 mA with analog-dimming-compatible PWM on DIM pin. Use Value: 2.7–5.5 V input range accommodates battery discharge; 170-mΩ switch minimizes dropout at full load; small WSON package fits tight board space. |
Use Scenario: Providing stable bias current to OLED pixel rows in portable medical display requiring low-noise, ripple-free current. IC Role / Device Role / Timing Role: Low-ripple constant-current source using ceramic output caps and 190-mV reference for <±3% current matching across display zones. Use Value: Internal soft-start prevents inrush-induced display flicker; current-mode control rejects input ripple; 164.2°C/W θJA (SOT-23 variant) validated for continuous operation. |
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 minimum duty cycle (2% vs 5%); lower quiescent current (3.4 mA vs 7 mA) | Better efficiency at light loads; larger inductors required; less suitable for space-constrained flash designs | Select when board area permits larger magnetics and priority is low-load efficiency over size |
| TPS61061DRVR | 1.2-MHz fixed frequency; 28-V output limit; integrated 1.5-A switch; no internal compensation (requires external RC) | Higher integration but needs more external tuning; lacks AEC-Q100 qualification; lower max output voltage | Choose for non-automotive consumer devices where BOM count reduction outweighs qualification requirements |
Compared with LM3410YSD/NOPB, the LM3410XSD/NOPB trades slightly higher quiescent current for 3× faster switching-enabling smaller passives and better transient response-while TPS61061DRVR offers tighter integration at the cost of design flexibility and automotive compliance.
Availability
LM3410XSD/NOPB is available at Aetrix Electronics and suitable for automotive instrument clusters, smartphone flash modules, industrial handheld scanners, and OLED display biasing requiring stable component supply across extended temperature and lifecycle demands.
Supply support for LM3410XSD/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 designing analog, embedded processing, and digital signal solutions for industrial, automotive, and personal electronics markets.
The LM3410 family targets high-efficiency, space-constrained LED lighting applications-specifically engineered to replace discrete boost controllers with integrated compensation, thermal protection, and AEC-Q100-compliant variants for automotive use.
FAQ
What is the maximum LED string voltage supported by the LM3410XSD/NOPB?
The LM3410XSD/NOPB supports output voltages up to 24 V, as specified in its recommended operating conditions. This allows driving up to seven 3.3-V white LEDs in series (7 × 3.3 V = 23.1 V), provided the 190-mV feedback headroom and diode forward drop are accounted for. Exceeding 24 V risks violating absolute maximum ratings and triggering overvoltage protection.
Does the LM3410XSD/NOPB require external compensation components?
No, the LM3410XSD/NOPB features internal compensation optimized for standard boost and SEPIC configurations. This eliminates the need for external compensation networks, reducing BOM count and layout complexity. The internal loop is tuned for stability with typical 1–10 µH inductors and ceramic capacitors, as validated in TI's reference designs.
Can the LM3410XSD/NOPB drive LEDs in SEPIC topology?
Yes, the LM3410XSD/NOPB is explicitly designed to operate in SEPIC configuration, as confirmed in Section 8.1.2 of its datasheet. It supports input-to-output voltage ratios both greater than and less than unity-ideal for single-cell Li-ion applications (2.7–4.5 V) powering 3.3–12 V OLED or HB LED loads without polarity inversion.
What is the purpose of the DAP (thermal pad) on the LM3410XSD/NOPB WSON package?
The DAP on the LM3410XSD/NOPB serves as the primary thermal and electrical ground connection. It must be soldered to the PCB's GND plane using 4–6 thermal vias to achieve the specified 55.3°C/W junction-to-ambient thermal resistance. Leaving it unconnected degrades thermal performance and may trigger premature thermal shutdown under load.
How does PWM dimming work on the DIM pin of the LM3410XSD/NOPB?
The DIM pin of the LM3410XSD/NOPB accepts a logic-level PWM signal (0–100% duty cycle, 1 Hz–25 kHz) to modulate average LED current. During high-DIM periods, the IC operates normally; during low-DIM periods, switching halts and output current drops to zero. This provides flicker-free dimming without color shift, with optimal resolution achieved at 200–1000 Hz.
LM3410XSD/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)
LM3410XSD/NOPB FAQ
1.How can I place an order for LM3410XSD/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410XSD/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 LM3410XSD/NOPB reliable?
The price and inventory of LM3410XSD/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410XSD/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410XSD/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410XSD/NOPB transactions.
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4.How is shipping managed for LM3410XSD/NOPB?
LM3410XSD/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410XSD/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 LM3410XSD/NOPB?
For technical support, including LM3410XSD/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410XSD/NOPB requirements.
6.How does Aetrix verify that LM3410XSD/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410XSD/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 LM3410XSD/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410XSD/NOPB?
All LM3410XSD/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410XSD/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 LM3410XSD/NOPB part is unused and in its original packaging.
Return procedure for LM3410XSD/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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