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Texas Instruments LM3410YSDE/NOPB
- Part No.:
- LM3410YSDE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
LM3410YSDE/NOPB.pdf
- Description:
- IC LED DRVR RGLTR PWM 2.8A 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
LM3410YSDE/NOPB from Texas Instruments is a 525-kHz 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, supports 2.8-A peak switch current, and targets handheld LED backlight and automotive HB-LED applications.
For engineers reviewing the LM3410YSDE/NOPB datasheet, LM3410YSDE/NOPB pinout, LM3410YSDE/NOPB application, or LM3410YSDE/NOPB equivalent, key selection considerations include switching frequency (525 kHz), internal compensation, thermal shutdown (165°C), ultra-low shutdown current (80 nA), and SOT-23-5 package compatibility with space-constrained portable designs.
Technical Context
The LM3410YSDE/NOPB implements current-mode PWM control with fixed 525-kHz oscillator, cycle-by-cycle current limiting (2.8-A typical), and internal soft-start. Its error amplifier regulates LED current by comparing FB voltage against a 190-mV reference, while the DIM pin accepts 0–100% duty-cycle PWM signals (1 Hz–25 kHz) for brightness control.
It integrates a 170-mΩ NMOS power switch and uses external RSET to set output current via ILED = 190 mV / RSET. The device supports both boost and SEPIC topologies, enabling output voltages above or below input-critical for Li-ion battery-powered OLED/HB-LED systems where VIN varies from 2.7 V to 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching frequency | 525 kHz - Enables use of small inductors & ceramic capacitors; reduces board area vs lower-frequency drivers. |
| Feedback reference voltage | 190 mV ±12 mV - Sets LED current accuracy; ILED = 0.19 V / RSET; low drift over temperature improves regulation stability. |
| Internal NMOS RDS(on) | 170 mΩ (typ) - Limits conduction loss at 2.8-A peak; enables >88% efficiency in typical boost configurations. |
| Input voltage range | 2.7 V to 5.5 V - Matches single-cell Li-ion (2.7–4.5 V) and USB-powered systems without LDO pre-regulation. |
| Output voltage range | 3 V to 24 V - Supports 1–7 white LEDs in series (VF ≈ 3.3 V) or high-VF HB-LEDs in automotive lighting. |
| Shutdown quiescent current | 80 nA - Enables ultra-low-power standby in battery-backed devices; extends runtime during display-off states. |
| Thermal shutdown threshold | 165°C - Protects die under overload or poor PCB thermal design; hysteresis (~15°C) prevents oscillation near trip point. |
Pinout & Package
LM3410YSDE/NOPB is packaged in a 5-pin SOT-23 (DBV) with 3.00 mm × 3.00 mm body size and exposed pad for thermal enhancement. Pin 1 is SW, Pin 2 is GND, Pin 3 is FB, Pin 4 is DIM, Pin 5 is VIN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pin 1) | Power switch output | Drives external inductor; swings from GND to VOUT + VF(D1); must be routed with short, low-inductance trace. |
| GND (Pin 2) | Signal & power ground | Reference for FB, DIM, and internal circuits; connects to bottom resistor of RSET network; requires low-impedance plane tie. |
| FB (Pin 3) | Current-sense feedback input | Monitors voltage across RSET; regulates ILED = 0.19 V / RSET; high-impedance node sensitive to noise coupling. |
| DIM (Pin 4) | PWM dimming & enable control | Logic-high (>1.8 V) enables operation; 0–100% PWM duty cycle controls average LED brightness; max 7 V absolute rating. |
| VIN (Pin 5) | Power supply input | Supplies internal bias and NMOS gate drive; requires local 2.2–22 µF ceramic bypass capacitor near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Internal compensation | Eliminates need for external compensation network; simplifies layout and reduces BOM count in boost/SEPIC designs. |
| Current-mode PWM control | Provides inherent cycle-by-cycle current limiting and stable operation across wide input/output voltage ranges. |
| Integrated 170-mΩ NMOS switch | Reduces external component count and conduction losses; supports 2.8-A peak current without external FET. |
| 190-mV precision feedback reference | Enables accurate, temperature-stable LED current setting with minimal RSET tolerance impact on ILED. |
| Ultra-low 80-nA shutdown current | Minimizes battery drain in always-on portable systems; enables true "off" state without mechanical switches. |
Applications
| LED Backlight for Handheld Displays | Automotive Interior Lighting |
|---|---|
Use Scenario: Driving 3–5 white LEDs in series for smartphone/tablet LCD backlight powered by single-cell Li-ion (2.7–4.5 V). IC Role / Device Role / Timing Role: Constant-current boost regulator controlling LED string current via FB pin; 525-kHz switching ensures compact magnetics. Use Value: Internal compensation and 190-mV reference deliver ±5% LED current accuracy across battery discharge; DIM pin enables seamless PWM dimming down to 0.1% duty cycle. | Use Scenario: Illuminating dashboard indicators or ambient lighting using high-brightness LEDs supplied from 12-V automotive rail with buck-boost capability. IC Role / Device Role / Timing Role: SEPIC topology LED driver regulating current despite wide input transients (6–16 V); thermal shutdown protects against under-hood overheating. Use Value: AEC-Q100 Grade 1 qualification (–40°C to 125°C) and 165°C thermal shutdown ensure reliability in harsh environments; 80-nA shutdown current meets automotive low-power requirements. |
| Li-ion–Powered OLED Drivers | LED Flash for Mobile Cameras |
Use Scenario: Powering RGB OLED subpixels requiring precise current matching and fast transient response in portable media players. IC Role / Device Role / Timing Role: Constant-current source with PWM dimming interface; 525-kHz switching minimizes EMI interference with RF sections. Use Value: Low 190-mV FB reference enables tight current matching between color channels; internal soft-start prevents inrush current damage to fragile OLED panels. | Use Scenario: Delivering high-intensity flash pulses (up to 1 A) for smartphone camera modules using dual-LED strings. IC Role / Device Role / Timing Role: High-peak-current boost driver with fast enable/disable via DIM pin; supports strobe timing down to 10-ms duration. Use Value: 2.8-A switch current limit allows brief overcurrent pulses for flash; 80-nA shutdown eliminates standby leakage that would drain camera battery overnight. |
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 |
|---|---|---|---|
| LM3410XSD/NOPB | 1.6-MHz switching frequency; higher RDS(on) (190 mΩ WSON); same pinout but different package (WSON-6 vs SOT-23-5). | Better suited for ultra-compact layouts needing smallest inductors; less optimal for noise-sensitive RF-adjacent placement. | Select when board space is critical and 1.6 MHz EMI filtering is manageable. |
| TPS61061DRVR | 600-kHz fixed frequency; 1.2-A switch current limit; 200-mV FB reference; integrated Schottky diode; 6-pin WSON. | Limited to lower-current LED strings; no SEPIC support; simpler BOM but reduced flexibility for high-VF or variable-input apps. | Choose for cost-sensitive, low-power indicator lighting where 1.2-A peak suffices and diode integration is preferred. |
Compared with LM3410YSDE/NOPB, LM3410XSD/NOPB trades higher frequency for slightly higher conduction loss and different packaging, while TPS61061DRVR offers integrated diode and lower peak current at the expense of topology flexibility and thermal robustness.
Availability
LM3410YSDE/NOPB is available at Aetrix Electronics and suitable for LED backlight, automotive interior lighting, and portable OLED driver applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for LM3410YSDE/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 solutions for industrial, automotive, and consumer markets.
The LM3410 product line delivers highly integrated, thermally robust LED drivers optimized for space-constrained, battery-powered, and automotive-grade lighting systems requiring precise constant-current regulation.
FAQ
What is the maximum LED string voltage supported by LM3410YSDE/NOPB?
The LM3410YSDE/NOPB supports output voltages up to 24 V, as specified in its recommended operating conditions. This allows driving up to seven standard white LEDs (VF ≈ 3.3 V each) in series, provided the total forward voltage plus 190 mV feedback headroom remains below 24 V. The actual limit depends on input voltage, efficiency, and thermal margin-designs should verify junction temperature stays below 125°C under worst-case load.
Can LM3410YSDE/NOPB operate in SEPIC topology, and what modifications are required?
Yes, LM3410YSDE/NOPB supports SEPIC configuration per TI's application documentation. To implement SEPIC, replace the standard boost inductor with coupled inductors L1 and L2, add a coupling capacitor CSEPIC, and reconfigure the diode and output capacitor. No changes to LM3410YSDE/NOPB's pin connections or external components (RSET, DIM, FB) are needed-the IC's current-mode control and internal compensation remain fully functional in SEPIC mode.
How does the DIM pin function in LM3410YSDE/NOPB, and what PWM frequencies are supported?
The DIM pin on LM3410YSDE/NOPB serves dual functions: logic-level enable (high = on, low = shutdown) and analog PWM dimming input. It accepts PWM signals from 1 Hz to 25 kHz, with optimal resolution for brightness control achieved between 200 Hz and 1 kHz. At 100% duty cycle, full LED current is delivered; at 0%, the device enters ultra-low 80-nA shutdown. The pin tolerates voltages up to VIN + 0.3 V and must never float.
What is the purpose of the 190-mV feedback reference in LM3410YSDE/NOPB, and how is LED current calculated?
The 190-mV internal reference in LM3410YSDE/NOPB sets the target voltage at the FB pin. LED current is calculated as ILED = 0.190 V / RSET, where RSET is the resistor connected between FB and GND. This relationship holds across temperature and input voltage due to internal compensation and line regulation (0.06%/V), enabling stable current control without additional sensing circuitry. Typical RSET values range from 0.1 Ω (1.9 A) to 10 Ω (19 mA).
Does LM3410YSDE/NOPB require external compensation components, and why?
No, LM3410YSDE/NOPB does not require external compensation components. It features fully internal compensation designed specifically for stable operation in both boost and SEPIC topologies across its full operating range (2.7–5.5 V input, 3–24 V output). This eliminates the need for external RC networks, reduces design complexity, improves layout robustness, and ensures consistent loop stability regardless of inductor or capacitor variations-key for high-volume portable manufacturing.
LM3410YSDE/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:
- 525kHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (3x3)
LM3410YSDE/NOPB FAQ
1.How can I place an order for LM3410YSDE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410YSDE/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 LM3410YSDE/NOPB reliable?
The price and inventory of LM3410YSDE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410YSDE/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410YSDE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410YSDE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410YSDE/NOPB?
LM3410YSDE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410YSDE/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 LM3410YSDE/NOPB?
For technical support, including LM3410YSDE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410YSDE/NOPB requirements.
6.How does Aetrix verify that LM3410YSDE/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410YSDE/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 LM3410YSDE/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410YSDE/NOPB?
All LM3410YSDE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410YSDE/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 LM3410YSDE/NOPB part is unused and in its original packaging.
Return procedure for LM3410YSDE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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