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Texas Instruments LM3410XMFX/NOPB
- Part No.:
- LM3410XMFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM3410XMFX/NOPB.pdf
- Description:
- IC LED DRV RGLTR PWM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,964
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Product details
Overview
LM3410XMFX/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 LM3410XMFX/NOPB datasheet, LM3410XMFX/NOPB pinout, LM3410XMFX/NOPB application, or LM3410XMFX/NOPB equivalent, key selection factors 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 LM3410XMFX/NOPB implements current-mode PWM control with fixed 1.6-MHz oscillator, internal soft start, and cycle-by-cycle current limiting. Its 170-mΩ NMOS switch enables high-efficiency boost/SEPIC topologies with minimal external components.
Feedback regulation targets 190 mV across RSET, enabling precise LED current setting independent of VIN or VOUT. DIM pin accepts 0–100% duty-cycle PWM signals (1 Hz–25 kHz) for analog-equivalent brightness control without altering current-sense accuracy.
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 voltage (VFB) | 190 mV - sets LED current as ILED = 0.19 V / RSET; stable over –40°C to 125°C |
| Switch on-resistance | 170 mΩ (typ) - 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-cell Li-ion (2.7–4.5 V) and USB-powered systems |
| Output voltage range | 3 V to 24 V - drives up to 7-series white LEDs (VF ≈ 3.4 V) or HB LED strings in automotive clusters |
| Thermal shutdown threshold | 165°C - protects die during overload or poor PCB thermal design; auto-recovery at ~150°C |
| Shutdown quiescent current | 80 nA - enables ultra-low-power standby in battery-critical portable devices |
Pinout & Package
LM3410XMFX/NOPB is housed in a 5-pin SOT-23 package (3.00 mm × 3.00 mm), optimized for space-constrained LED driver layouts. Thermal performance relies on proper GND pad layout and minimal trace inductance on SW and VIN paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Supplies internal bias and power stage; requires local 2.2–22 µF MLCC decoupling near pin |
| GND | Signal ground | Reference for FB and DIM; must be routed close to bottom resistor of RSET network |
| SW | Switch node | Drives external inductor; high dv/dt node requiring short, low-inductance routing to minimize EMI |
| FB | Current-sense feedback | Monitors voltage across RSET; connects directly to RSET bottom terminal to avoid trace resistance error |
| DIM | Dimming/shutdown control | Logic-level input (0–VIN); 100-nA bias enables direct MCU GPIO drive; floating state disables device |
Key Features
| Feature | Design Value |
|---|---|
| Internal compensation | Eliminates need for external compensation network-reduces BOM count and layout sensitivity |
| PWM dimming interface | Supports 1 Hz–25 kHz PWM on DIM pin; preserves current regulation accuracy across full 0–100% duty cycle |
| AEC-Q100 Grade 1 | Qualified for automotive ambient range (–40°C to 125°C) and ESD robustness (HBM ±2 kV, CDM ±1 kV) |
| Internal soft start | 20-µs startup time prevents inrush current spikes into LED string and input capacitor |
| Current-mode control | Provides inherent cycle-by-cycle current limiting and fast transient response to LED VF variation |
Applications
| Automotive Instrument Cluster Backlighting | Smartphone LED Flash |
|---|---|
|
Use Scenario: Driving 4–6 series white LEDs (12–20 V total VF) in vehicle dashboard displays under cold-crank (2.7 V) and load-dump (5.5 V) conditions. IC Role / Device Role / Timing Role: Constant-current boost regulator with 1.6-MHz switching, regulating LED current via 190-mV FB reference and internal 170-mΩ switch. Use Value: AEC-Q100 Grade 1 rating ensures reliable operation across –40°C to 125°C; 80-nA shutdown current extends battery life during display-off periods. |
Use Scenario: Delivering 1-A peak flash current to dual-LED arrays in mobile phones with tight PCB space constraints. IC Role / Device Role / Timing Role: High-frequency (1.6 MHz) SEPIC/boost controller enabling compact 1.0 × 1.0 mm inductors and 0.47-µF X7R ceramics. Use Value: Internal soft start prevents camera module brownout during flash activation; PWM dimming allows precise intensity control via baseband processor. |
| Li-ion–Powered OLED Display Bias | Industrial Handheld Torch Lighting |
|
Use Scenario: Generating stable 15-V bias for OLED pixel drivers in portable medical monitors powered by single-cell Li-ion batteries (2.7–4.5 V). IC Role / Device Role / Timing Role: Regulated SEPIC converter using internal 170-mΩ NMOS and current-mode control to maintain constant output despite input sag. Use Value: 1.6-MHz operation avoids audible noise in sensitive audio environments; thermal shutdown prevents overheating during extended display-on periods. |
Use Scenario: Driving high-brightness LED strings in ruggedized handheld tools requiring 2.7–5.5 V input compatibility and shock/vibration tolerance. IC Role / Device Role / Timing Role: Boost LED driver with cycle-by-cycle current limit (2.8 A typ) and 190-mV reference for consistent lumen output across battery discharge. Use Value: SOT-23 package withstands mechanical stress; 165°C thermal shutdown protects against thermal runaway in sealed enclosures. |
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 |
|---|---|---|---|
| LM3410YMF/NOPB | 525-kHz switching frequency; higher max duty cycle (95% vs 92%); lower quiescent current (3.4 mA vs 7 mA) | Better suited for higher-efficiency, lower-EMI designs where board space permits larger inductors | Select when prioritizing efficiency over size, or when operating below 1 MHz is required for EMI compliance |
| TPS61061DRVR | 1.2-MHz fixed frequency; integrated 2-A switch; no internal compensation; requires external RC compensation network | Lacks AEC-Q100 qualification; rated only for commercial temperature range (–40°C to 85°C) | Choose for cost-sensitive consumer applications where automotive qualification is unnecessary |
Compared with LM3410XMFX/NOPB, LM3410YMF/NOPB trades higher board area for improved efficiency and lower noise, while TPS61061DRVR reduces component count but sacrifices automotive reliability and thermal robustness.
Availability
LM3410XMFX/NOPB is available at Aetrix Electronics and suitable for automotive instrument clusters, smartphone flash modules, Li-ion–powered OLED displays, and industrial handheld lighting requiring stable component supply and long-term lifecycle support.
Supply support for LM3410XMFX/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 delivering analog and embedded processing solutions, with leadership in power management, signal chain, and high-reliability ICs.
The LM3410 family was designed specifically for space-constrained, high-efficiency LED current regulation in automotive and portable electronics-emphasizing integration, thermal resilience, and AEC-Q100 compliance.
FAQ
What is the maximum LED string voltage supported by LM3410XMFX/NOPB?
The LM3410XMFX/NOPB supports output voltages up to 24 V, enabling driving of up to seven 3.4-V white LEDs in series. This limit is defined by the absolute maximum SW pin voltage rating (26.5 V) and the recommended operating range (3 V to 24 V). Exceeding 24 V risks violating safe operating area margins under transient conditions.
Does LM3410XMFX/NOPB require external compensation components?
No, LM3410XMFX/NOPB features internal compensation, eliminating the need for external RC networks. This simplifies design, reduces BOM count, and improves stability across input voltage and load variations-confirmed in the datasheet's "Internal Compensation" section and typical application schematics.
Can LM3410XMFX/NOPB operate in SEPIC topology?
Yes, LM3410XMFX/NOPB supports SEPIC configuration per TI's Application Note SNVS541H Section 8.1.2. It regulates output voltage both above and below VIN-ideal for single-cell Li-ion (2.7–4.5 V) powering 3.3-V or 5-V OLED bias rails-using two inductors and one coupling capacitor.
What is the purpose of the 190-mV feedback reference in LM3410XMFX/NOPB?
The 190-mV internal reference sets LED current as ILED = 0.19 V / RSET. This low-voltage reference minimizes power loss in the sense resistor while maintaining accuracy across temperature (±12 mV over –40°C to 125°C), directly enabling efficient, precision current regulation without external op-amps.
How does the DIM pin function in LM3410XMFX/NOPB?
The DIM pin on LM3410XMFX/NOPB serves dual roles: logic-level enable/disable (high = active, low = shutdown) and PWM brightness control (0–100% duty cycle, 1 Hz–25 kHz). Its 100-nA input bias allows direct connection to microcontroller GPIOs without pull-up resistors, and floating DIM forces shutdown.
LM3410XMFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- SOT-23-5
LM3410XMFX/NOPB FAQ
1.How can I place an order for LM3410XMFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410XMFX/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 LM3410XMFX/NOPB reliable?
The price and inventory of LM3410XMFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410XMFX/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410XMFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410XMFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410XMFX/NOPB?
LM3410XMFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410XMFX/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 LM3410XMFX/NOPB?
For technical support, including LM3410XMFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410XMFX/NOPB requirements.
6.How does Aetrix verify that LM3410XMFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410XMFX/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 LM3410XMFX/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410XMFX/NOPB?
All LM3410XMFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410XMFX/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 LM3410XMFX/NOPB part is unused and in its original packaging.
Return procedure for LM3410XMFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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