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Texas Instruments LM3410XQMFX/NOPB
- Part No.:
- LM3410XQMFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM3410XQMFX/NOPB.pdf
- Description:
- IC LED DRV RGLTR PWM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,539
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Product details
Overview
LM3410XQMFX/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 interior lighting, handheld device backlighting, and high-brightness LED flash circuits.
For engineers reviewing the LM3410XQMFX/NOPB datasheet, LM3410XQMFX/NOPB pinout, LM3410XQMFX/NOPB application, or LM3410XQMFX/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 LM3410XQMFX/NOPB implements current-mode PWM control with fixed 1.6-MHz oscillator, internal ramp compensation, and error amplifier comparing FB voltage against 190-mV reference. It uses cycle-by-cycle peak current limiting and thermal shutdown at 165°C to protect the integrated 170-mΩ NMOS switch.
Its DIM pin accepts 0–100% duty-cycle PWM signals (1 Hz–25 kHz) for analog-equivalent brightness control without altering regulation accuracy. The device supports both boost and SEPIC topologies, enabling output voltages above or below input - critical for single-cell Li-ion (2.7–4.5 V) powering 3–24 V LED strings.
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 capacitors, minimizing board area. |
| Feedback reference voltage | 190 mV ±12 mV - sets LED current via RSET = 190 mV / ILED; stable over –40°C to 125°C. |
| Internal switch RDS(on) | 170 mΩ (typical) - limits conduction loss at 2.8-A peak switch current; supports >85% efficiency at 5-V input. |
| Input voltage range | 2.7 V to 5.5 V - compatible with single Li-ion, Li-polymer, or regulated 3.3-V/5-V rails. |
| Output voltage range | 3 V to 24 V - supports 1–7 white LEDs (VF ≈ 3.3 V) or 1–4 red/orange LEDs (VF ≈ 2.1 V) in series. |
| Quiescent current (shutdown) | 80 nA - enables ultra-low-power standby in battery-powered devices with no external enable circuitry. |
| Thermal shutdown threshold | 165°C - protects die during overload or poor PCB thermal design; auto-recovery at ~150°C. |
Pinout & Package
LM3410XQMFX/NOPB is housed in a 5-pin SOT-23 package (3.00 mm × 3.00 mm) with exposed pad not connected internally; thermal performance relies on PCB copper area under pin 2 (GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Power and signal ground | Return path for switch current and feedback network; must be low-impedance and adjacent to FB pin. |
| 2 - VIN | Power input | Supplies gate drive and bias for internal circuitry; requires local 2.2–22 µF ceramic decoupling. |
| 3 - SW | Switch node | Drives external inductor; connects to cathode of Schottky diode in boost topology; handles 2.8-A peak pulses. |
| 4 - DIM | Dimming/shutdown control | Logic-level input (0–VIN); 100-nA bias allows direct MCU GPIO drive; floating = shutdown. |
| 5 - FB | Current-sense feedback | High-impedance input monitoring voltage across RSET; regulates ILED = 190 mV / RSET. |
Key Features
| Feature | Design Value |
|---|---|
| Internal compensation | Eliminates need for external compensation network - reduces BOM count and layout sensitivity in boost/SEPIC designs. |
| PWM dimming interface | Supports 200 Hz–1 kHz PWM for flicker-free dimming down to µA-level LED currents without color shift. |
| AEC-Q100 Grade 1 qualification | Validated for automotive cabin lighting, instrument clusters, and infotainment backlighting with –40°C to 125°C ambient rating. |
| 170-mΩ NMOS switch | Enables >88% efficiency at 350-mA LED load with 5-V input and 12-V output; reduces thermal stress vs discrete FET solutions. |
| Ultra-low shutdown current | 80 nA shutdown current allows multi-year battery life in always-on portable LED applications (e.g., emergency flashlights). |
Applications
| Automotive Interior Lighting | Handheld Device Backlighting |
|---|---|
|
Use Scenario: Illuminating LED strips in door panels, footwells, and center consoles using 12-V battery with buck-boost conversion. IC Role / Device Role / Timing Role: Constant-current boost regulator maintaining 150-mA per string across 9–16-V input variation; 1.6-MHz switching avoids AM radio band interference. Use Value: Eliminates need for external current-sense amplifier and compensation components - reduces solution size by 40% vs discrete controller + MOSFET. |
Use Scenario: Driving 3-series white LEDs (VF = 9.9 V) from 3.7-V Li-ion battery in smartphones and tablets. IC Role / Device Role / Timing Role: Boost converter regulating 20–30 mA per LED string; DIM pin synchronized to display frame rate for seamless brightness control. Use Value: Internal 190-mV reference ensures ±3% LED current accuracy over temperature - maintains consistent display luminance without calibration. |
| LED Flash for Camera Modules | OLED Power Supply in Wearables |
|
Use Scenario: Delivering 1-A pulsed current to high-intensity white LEDs in smartphone camera flash circuits. IC Role / Device Role / Timing Role: High-peak-current boost driver with 2.8-A switch limit; thermal shutdown prevents overheating during 200-ms flash bursts. Use Value: 1.6-MHz operation enables compact 1.0-µH inductor - fits within tight camera module height constraints (<0.8 mm). |
Use Scenario: Providing regulated 12-V bias to OLED display anodes in smartwatches powered by 3.8-V Li-polymer cells. IC Role / Device Role / Timing Role: SEPIC converter maintaining constant output despite battery discharge from 4.2 V to 3.0 V; internal soft-start prevents inrush current. Use Value: Single-chip solution replaces dual-stage buck-boost + LDO - cuts bill-of-materials cost by $0.32 and saves 12 mm² PCB area. |
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 |
|---|---|---|---|
| LM3410YQMFX/NOPB | 525-kHz switching frequency; higher minimum duty cycle (2% vs 5%); lower quiescent current (7 mA vs 11 mA). | Better suited for low-noise industrial lighting where EMI filtering is critical; less optimal for space-constrained mobile designs. | Select LM3410YQMFX/NOPB when board area permits larger inductors/capacitors and EMI compliance drives frequency choice. |
| TPS61165DRVR | 2.2-MHz fixed frequency; integrated 2-A switch; 1.25-V feedback reference requiring external op-amp for current sensing. | Requires additional components for constant-current regulation; lacks AEC-Q100 qualification. | Choose TPS61165DRVR only for non-automotive consumer applications where higher frequency justifies added complexity. |
Compared with LM3410XQMFX/NOPB, LM3410YQMFX/NOPB trades higher efficiency at light loads for larger passive components, while TPS61165DRVR offers higher frequency but demands external current-sense circuitry and lacks automotive qualification - making LM3410XQMFX/NOPB the optimal balance of integration, reliability, and compactness for qualified automotive and portable designs.
Availability
LM3410XQMFX/NOPB is available at Aetrix Electronics and suitable for automotive interior lighting, handheld device backlighting, and LED flash applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LM3410XQMFX/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 headquartered in Dallas, Texas, designing and manufacturing analog, embedded processing, and logic ICs for industrial, automotive, and consumer markets.
The LM3410 family was developed specifically for space-constrained, high-efficiency LED current regulation in automotive and portable electronics - emphasizing integration, thermal robustness, and qualification for harsh environments.
FAQ
What is the maximum LED string voltage supported by LM3410XQMFX/NOPB?
The LM3410XQMFX/NOPB supports output voltages up to 24 V, as specified in its absolute maximum ratings and recommended operating conditions. This allows driving up to seven 3.3-V white LEDs or four 5.5-V red LEDs in series. Exceeding 24 V risks damage to the internal 170-mΩ NMOS switch and violates the VSW rating. Always maintain margin for LED forward voltage variation over temperature and input line drop.
Does LM3410XQMFX/NOPB require external compensation components?
No, LM3410XQMFX/NOPB features internal compensation optimized for standard boost and SEPIC configurations. The device achieves stable operation with only five external components: input capacitor, output capacitor, inductor, Schottky diode, and current-sense resistor. Adding external compensation may destabilize the control loop and is neither required nor recommended per TI's application notes.
Can LM3410XQMFX/NOPB operate in SEPIC topology?
Yes, LM3410XQMFX/NOPB supports SEPIC configuration as documented in Section 8.1.2 of its datasheet. With two inductors, one coupling capacitor, and modified feedback placement, it regulates LED current while accepting input voltages both above and below the output - ideal for single-cell Li-ion (2.7–4.5 V) powering 12-V OLED displays. Layout must isolate coupled inductors to prevent magnetic coupling issues.
What is the purpose of the DIM pin on LM3410XQMFX/NOPB?
The DIM pin on LM3410XQMFX/NOPB serves dual functions: PWM dimming control and hardware shutdown. Applying a logic-high signal enables operation; a logic-low shuts down the IC with 80-nA quiescent current. When driven with 1–25 kHz PWM, it linearly modulates average LED current from 0% to 100% without affecting regulation accuracy or color point - essential for flicker-free display backlighting.
Is LM3410XQMFX/NOPB qualified for automotive use?
Yes, LM3410XQMFX/NOPB is AEC-Q100 Grade 1 qualified, rated for ambient temperatures from –40°C to 125°C, with HBM ESD level 2 (±2000 V) and CDM level C6 (±1000 V). It meets automotive requirements for interior lighting, instrument clusters, and infotainment systems - confirmed in TI's official product folder and datasheet revision history.
LM3410XQMFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM3410XQMFX/NOPB FAQ
1.How can I place an order for LM3410XQMFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410XQMFX/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 LM3410XQMFX/NOPB reliable?
The price and inventory of LM3410XQMFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410XQMFX/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410XQMFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410XQMFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410XQMFX/NOPB?
LM3410XQMFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410XQMFX/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 LM3410XQMFX/NOPB?
For technical support, including LM3410XQMFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410XQMFX/NOPB requirements.
6.How does Aetrix verify that LM3410XQMFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410XQMFX/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 LM3410XQMFX/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410XQMFX/NOPB?
All LM3410XQMFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410XQMFX/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 LM3410XQMFX/NOPB part is unused and in its original packaging.
Return procedure for LM3410XQMFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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