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Texas Instruments LM3410YQMFX/NOPB
- Part No.:
- LM3410YQMFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM3410YQMFX/NOPB.pdf
- Description:
- IC LED DRV RGLTR PWM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,745
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Product details
Overview
LM3410YQMFX/NOPB from Texas Instruments is a constant-current, 525-kHz 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 HB-LED flash circuits.
For engineers reviewing the LM3410YQMFX/NOPB datasheet, LM3410YQMFX/NOPB pinout, LM3410YQMFX/NOPB application, or LM3410YQMFX/NOPB equivalent, key selection factors include its fixed 525-kHz switching frequency, internal compensation, thermal shutdown (165°C), ultra-low 80-nA shutdown current, and AEC-Q100 Grade 1 qualification for –40°C to 125°C ambient operation.
Technical Context
The LM3410YQMFX/NOPB implements current-mode PWM control with internal slope compensation and a dedicated error amplifier comparing FB voltage against a 190-mV reference. Its 525-kHz oscillator sets timing for cycle-by-cycle peak current limiting and soft-start initiation.
It integrates a 170-mΩ NMOS power switch rated for 2.8-A typical peak current, supports both boost and SEPIC topologies, and uses the DIM pin for 0–100% PWM dimming at frequencies from 1 Hz to 25 kHz - with optimal µA-level current control at 200–1 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching frequency | 525 kHz - enables use of sub-2.2-µH inductors and compact ceramic capacitors without compromising stability. |
| Feedback reference voltage | 190 mV ±12 mV - sets LED current via RSET = 0.19 V / ILED; tight tolerance ensures accurate current regulation across temperature. |
| Input voltage range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.5 V) and regulated 3.3-V/5-V rails. |
| Output voltage range | 3 V to 24 V - supports strings of up to 7 white LEDs (VF ≈ 3.3 V) or 4 high-VF red/orange LEDs. |
| Switch on-resistance | 170 mΩ (typical) - limits conduction loss at 2.1-A minimum current limit; reduces thermal stress in SOT-23 package. |
| Shutdown quiescent current | 80 nA - enables battery-powered devices to achieve multi-year shelf life without significant drain. |
| Thermal shutdown threshold | 165°C - protects die during overload or poor PCB thermal design; auto-recovery at ~150°C junction temperature. |
Pinout & Package
LM3410YQMFX/NOPB is packaged in a 5-pin SOT-23 (DBV) with exposed pad for thermal enhancement. Pin 1 = SW, Pin 2 = GND, Pin 3 = FB, Pin 4 = DIM, Pin 5 = VIN. The exposed pad (DAP) must be connected to ground via ≥4 vias for reliable thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pin 1) | Power switch output | Drives external inductor; swings between GND and VOUT + VF(D1); requires low-inductance layout to minimize ringing. |
| GND (Pin 2) | Signal and power ground | Reference for FB and DIM; place bottom resistor of feedback network adjacent to this pin to reduce noise coupling. |
| FB (Pin 3) | Current-sense feedback input | Monitors voltage across RSET; regulates LED current by maintaining 190 mV at this node; high-impedance (≤1 µA bias). |
| DIM (Pin 4) | PWM dimming/shutdown control | Logic-high (>1.8 V) enables operation; 0–100% duty cycle controls average LED brightness; must not float or exceed VIN + 0.3 V. |
| VIN (Pin 5) | Input supply voltage | Supplies power stage and internal circuitry; requires local 2.2–22 µF ceramic decoupling close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient temperatures from –40°C to 125°C - suitable for instrument cluster, center stack, and exterior lighting modules. |
| Internal compensation | Eliminates need for external compensation network - reduces BOM count and layout sensitivity while maintaining stable loop response across load/line variations. |
| 170-mΩ NMOS switch | Enables >85% efficiency at 350-mA LED current with 3.3-V input and 12-V output - minimizes heat generation in space-constrained SOT-23 footprint. |
| 190-mV precision reference | Ensures ±6% LED current accuracy over temperature and line - critical for consistent luminance in display backlighting applications. |
| Ultra-low 80-nA shutdown current | Supports always-on systems with battery backup (e.g., automotive infotainment standby) without measurable drain over months. |
Applications
| Automotive Interior Lighting | Handheld Device Backlight |
|---|---|
Use Scenario: Illuminating HVAC control panel LEDs and ambient footwell lighting in passenger vehicles. IC Role / Device Role / Timing Role: Constant-current boost driver regulating 100–350 mA through series-connected white LEDs powered from 12-V battery (via 5-V rail). Use Value: AEC-Q100 Grade 1 rating ensures reliability across thermal cycling; 525-kHz operation allows miniature 1.5-µH inductors to fit under dash bezels. |
Use Scenario: Driving parallel LED strings in smartphone or tablet LCD backlight with dynamic brightness control. IC Role / Device Role / Timing Role: PWM-dimmable current source delivering 20–100 mA per string using 3.3-V system rail and 100-Hz–10-kHz DIM signal. Use Value: 80-nA shutdown current extends battery life during sleep mode; internal compensation simplifies layout in dense mobile PCBs. |
| LED Flash Driver | Li-ion Powered OLED Display |
Use Scenario: Providing short-duration, high-brightness flash for camera modules in portable electronics. IC Role / Device Role / Timing Role: Boost converter supplying 800 mA peak current to 3-white-LED string from 3.6-V Li-ion cell. Use Value: 2.8-A switch current limit accommodates brief 2× overcurrent pulses; thermal shutdown prevents damage during repeated flash bursts. |
Use Scenario: Powering monochrome or color OLED panels in wearables and medical handhelds using single-cell Li-ion (2.7–4.5 V). IC Role / Device Role / Timing Role: SEPIC regulator maintaining constant 20–50 mA per segment despite input voltage sag below OLED forward voltage. Use Value: SEPIC topology enables output > input (e.g., 8 V from 3.3 V) without polarity inversion - essential for OLED bias requirements. |
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 |
|---|---|---|---|
| LM3410XQMFX/NOPB | 1.6-MHz switching frequency; higher RDS(ON) (190 mΩ WSON); same pinout but different frequency bin. | Better suited for ultra-compact layouts requiring <1-µH inductors; lower efficiency at high current due to higher conduction loss. | Select when board area is constrained and thermal budget permits higher switching losses. |
| TPS61061DRVR | 600-kHz fixed frequency; 1.8-A switch limit; integrated 0.2-Ω switch; no internal compensation (requires external RC). | Limited to ≤18-V output; lacks AEC-Q100 qualification; optimized for consumer backlight, not automotive. | Choose for cost-sensitive non-automotive designs where 1.8-A peak current suffices and layout allows external compensation. |
Compared with LM3410XQMFX/NOPB, the LM3410YQMFX/NOPB trades higher inductor size for better efficiency and thermal margin; versus TPS61061DRVR, it offers automotive qualification, higher current capability, and simplified design via internal compensation - making it preferable for safety-critical or thermally demanding deployments.
Availability
LM3410YQMFX/NOPB is available at Aetrix Electronics and suitable for automotive interior lighting, handheld device backlighting, and LED flash driver applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LM3410YQMFX/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 leader specializing in analog, embedded processing, and power management technologies, with decades of automotive-grade IC development expertise.
The LM3410 product line was designed specifically for high-efficiency, compact-area constant-current LED driving in space- and thermal-constrained environments - targeting automotive, portable, and industrial lighting systems.
FAQ
What is the maximum LED string voltage supported by the LM3410YQMFX/NOPB?
The LM3410YQMFX/NOPB supports output voltages up to 24 V, as specified in its absolute maximum ratings. This allows driving strings of up to seven standard white LEDs (VF ≈ 3.3 V each) or four high-forward-voltage red/orange LEDs. Operation above 24 V risks permanent damage to the internal 170-mΩ NMOS switch and is strictly prohibited.
Does the LM3410YQMFX/NOPB require external compensation components?
No, the LM3410YQMFX/NOPB features fully internal compensation - no external capacitor or resistor network is needed to stabilize the control loop. This simplifies design, reduces bill-of-materials cost, and improves immunity to layout-induced phase margin degradation compared to externally compensated LED drivers.
Can the LM3410YQMFX/NOPB drive LEDs in SEPIC topology?
Yes, the LM3410YQMFX/NOPB supports SEPIC configuration, enabling output voltages both above and below the input - ideal for single-cell Li-ion applications (2.7–4.5 V) powering OLED displays requiring 5–8 V bias. TI provides validated SEPIC schematics and component selection guidelines in the official datasheet.
What is the purpose of the DIM pin on the LM3410YQMFX/NOPB?
The DIM pin on the LM3410YQMFX/NOPB serves dual functions: PWM dimming control (0–100% duty cycle) and logic-level enable/disable. A logic-high signal (>1.8 V) enables operation; applying a PWM waveform adjusts average LED brightness. The pin must never float or exceed VIN + 0.3 V to avoid latch-up or damage.
Is the LM3410YQMFX/NOPB qualified for automotive use?
Yes, the LM3410YQMFX/NOPB is AEC-Q100 qualified (Grade 1), tested for operation from –40°C to +125°C ambient temperature, HBM ESD Level 2 (±2 kV), and CDM Level C6 (±1 kV). It meets automotive reliability standards for dashboard, center console, and exterior lighting modules.
LM3410YQMFX/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:
- 525kHz
- 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
LM3410YQMFX/NOPB FAQ
1.How can I place an order for LM3410YQMFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410YQMFX/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 LM3410YQMFX/NOPB reliable?
The price and inventory of LM3410YQMFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410YQMFX/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410YQMFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410YQMFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410YQMFX/NOPB?
LM3410YQMFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410YQMFX/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 LM3410YQMFX/NOPB?
For technical support, including LM3410YQMFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410YQMFX/NOPB requirements.
6.How does Aetrix verify that LM3410YQMFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410YQMFX/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 LM3410YQMFX/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410YQMFX/NOPB?
All LM3410YQMFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410YQMFX/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 LM3410YQMFX/NOPB part is unused and in its original packaging.
Return procedure for LM3410YQMFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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