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Texas Instruments LM3410YSDX/NOPB
- Part No.:
- LM3410YSDX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
LM3410YSDX/NOPB.pdf
- Description:
- IC LED DRVR RGLTR PWM 2.8A 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,822
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Product details
Overview
LM3410YSDX/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 control. It delivers up to 2.8-A peak switch current, supports 2.7–5.5-V input and 3–24-V output, and targets space-constrained LED backlight and flash applications in handheld and automotive systems.
For engineers reviewing the LM3410YSDX/NOPB datasheet, LM3410YSDX/NOPB pinout, LM3410YSDX/NOPB application, or LM3410YSDX/NOPB equivalent, key selection criteria include switching frequency (525 kHz), internal compensation, thermal shutdown (165°C), ultra-low shutdown current (80 nA), and WSON-6 package compatibility with high-density PCB layouts.
Technical Context
The LM3410YSDX/NOPB implements current-mode PWM control with fixed 525-kHz oscillator, cycle-by-cycle current limiting, 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 operates in boost or SEPIC topology with internal 170-mΩ NMOS switch, supports input voltages down to 2.7 V, and features undervoltage lockout (2.65 V rising threshold) and thermal shutdown (165°C trip, ~150°C recovery). The device uses internal compensation and requires only five external components for basic operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching frequency | 525 kHz - enables use of sub-2.2-µH inductors and small ceramic capacitors for compact layout |
| Feedback reference voltage | 190 mV ±12 mV - sets LED current via RSET = 0.19 V / ILED, enabling precise current regulation |
| Input voltage range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (2.7–4.5 V) and 3.3-V/5-V rail systems |
| Output voltage range | 3 V to 24 V - supports up to 7-series white LEDs (VF ≈ 3.4 V) or HB LED strings in automotive lighting |
| Peak switch current limit | 2.8 A typical - defines maximum inductor peak current and constrains power stage sizing |
| Shutdown quiescent current | 80 nA - enables battery-powered devices to maintain >1-year shelf life without significant drain |
| Thermal shutdown threshold | 165°C - protects die under overload or poor thermal design; recovers at ~150°C |
Pinout & Package
LM3410YSDX/NOPB is packaged in a 6-pin WSON (NGG) with 3.00 mm × 3.00 mm body size and exposed thermal pad (DAP) connected to GND. The DAP must be soldered to a top-layer GND plane with 4–6 vias to bottom-layer GND for thermal performance (RθJA = 55.3°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node output | Drives inductor in boost/SEPIC; swings from GND to VOUT + VF(D1); connects directly to L1 and D1 anode |
| 2 GND | Signal ground | Reference for FB and DIM; place bottom resistor of feedback divider adjacent to this pin |
| 3 FB | Current-sense feedback input | Monitors voltage across RSET; regulates LED current to 0.19 V / RSET |
| 4 DIM | PWM dimming/shutdown control | Logic-high (>1.8 V) enables operation; 0–100% PWM duty cycle controls average LED brightness |
| 5 VIN | Power supply input | Supplies internal circuitry and NMOS gate drive; bypass with ≥2.2 µF ceramic capacitor near pin |
| DAP | Thermal & power ground pad | Must be soldered to PCB GND plane; primary thermal path; not electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| Internal 170-mΩ NMOS switch | Eliminates external MOSFET, reduces BOM count, and improves efficiency at 525 kHz switching |
| Fixed 525-kHz switching frequency | Enables consistent EMI filtering design and supports <1.0-mm-height inductors for ultra-thin devices |
| 190-mV precision feedback reference | Provides ±6% LED current accuracy over temperature and line without trimming or calibration |
| Internal soft-start | Prevents inrush current during startup; eliminates need for external RC timing network |
| PWM dimming interface (DIM pin) | Accepts standard logic-level PWM signals up to 25 kHz-no external level-shifting or driver required |
Applications
| LED Backlight for Handheld Displays | Automotive Interior Lighting |
|---|---|
Use Scenario: Driving 4–6 series white LEDs in smartphone or tablet LCD backlight with 3.3-V or 3.7-V Li-ion battery input. IC Role / Device Role / Timing Role: Constant-current boost controller regulating LED string current via FB pin; 525-kHz switching synchronizes with display frame rate to avoid visible flicker. Use Value: Delivers 20–30 mA per LED with <±5% variation across temperature, enabled by 190-mV reference and internal compensation. | Use Scenario: Powering map light or dome light LED modules in vehicles with 9–16-V battery (via buck pre-regulator) or direct 12-V supply with SEPIC configuration. IC Role / Device Role / Timing Role: SEPIC LED driver maintaining regulated current despite wide input variation; AEC-Q100 Grade 1 qualified for –40°C to 125°C ambient. Use Value: Supports cold-crank operation down to 6 V input when paired with pre-buck; thermal shutdown prevents failure during prolonged cabin heat exposure. |
| Li-ion Powered LED Flash | OLED Display Bias Supply |
Use Scenario: High-brightness camera flash in compact mobile devices requiring burst-mode current up to 1.5 A for 100-ms duration. IC Role / Device Role / Timing Role: Boost converter delivering pulsed LED current; DIM pin accepts TTL-level trigger signal for precise flash timing control. Use Value: 2.8-A peak switch current and 80-nA shutdown current enable fast, efficient flash pulses without draining standby battery life. | Use Scenario: Providing stable bias current to OLED pixel drivers in wearables or smartwatches where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Low-noise constant-current source; 525-kHz operation minimizes conducted EMI into sensitive analog sensor circuits nearby. Use Value: Ceramic-capacitor-compatible output and internal compensation ensure stable regulation with <10 mV ripple on 12-V OLED supply rails. |
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 |
|---|---|---|---|
| LM3410XSDX/NOPB | 1.6-MHz switching frequency; higher RDS(ON) (190 mΩ WSON); lower max duty cycle (88%) | Better suited for ultra-compact designs needing <0.47-µH inductors; reduced efficiency at high output voltages | Select when board area is critical and input-to-output voltage ratio is low (e.g., 3.3-V input → 5-V output) |
| TPS61165DRVR | 1.2-MHz fixed frequency; integrated 2-A switch; 1.25-V feedback reference; no internal compensation | Requires external compensation network; higher FB voltage increases current-sense resistor power loss | Choose when higher output voltage headroom (>28 V) or adjustable frequency is needed, accepting added design complexity |
Compared with LM3410XSDX/NOPB, the LM3410YSDX/NOPB trades higher inductor size for improved efficiency above 12-V output; versus TPS61165DRVR, it offers plug-and-play operation with internal compensation but less flexibility in loop tuning and output voltage range.
Availability
LM3410YSDX/NOPB is available at Aetrix Electronics and suitable for LED backlight, automotive interior lighting, handheld flash, and OLED bias applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LM3410YSDX/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 processing technologies, with leadership in power management and precision analog ICs.
The LM3410 product line delivers highly integrated, thermally robust LED drivers for space-constrained portable and automotive lighting, emphasizing ease of use through internal compensation and minimal external component count.
FAQ
What is the switching frequency of the LM3410YSDX/NOPB?
The LM3410YSDX/NOPB operates at a fixed 525-kHz switching frequency. This value is factory-trimmed and not user-adjustable. It enables compact magnetic design with standard 1.0–2.2-µH inductors and supports efficient operation across its full input (2.7–5.5 V) and output (3–24 V) ranges. The LM3410YSDX/NOPB datasheet specifies typical frequency tolerance as ±25% over temperature and process variation.
How is LED current set on the LM3410YSDX/NOPB?
LED current is set by connecting a resistor (RSET) between the FB pin and GND. The device regulates the voltage at FB to 190 mV, so ILED = 0.19 V / RSET. For example, a 4.75-Ω resistor sets 40 mA. The LM3410YSDX/NOPB's 190-mV reference has ±6% tolerance over temperature, ensuring predictable current accuracy without calibration. RSET must be placed close to the GND pin to minimize noise coupling.
Does the LM3410YSDX/NOPB support SEPIC topology?
Yes, the LM3410YSDX/NOPB supports both boost and SEPIC configurations, as confirmed in TI's SNVS541H datasheet Section 8.1.2. In SEPIC mode, it regulates LED current across input voltages both below and above the output-ideal for single-cell Li-ion (2.7–4.5 V) powering 5-V or 12-V LED strings. External component selection (L1, L2, C1, C2) follows standard SEPIC design rules, and the LM3410YSDX/NOPB's internal compensation remains valid.
What is the purpose of the DIM pin on the LM3410YSDX/NOPB?
The DIM pin on the LM3410YSDX/NOPB serves dual functions: PWM dimming control and enable/disable. A logic-high signal (>1.8 V) enables operation; applying a 0–100% duty-cycle PWM waveform (1 Hz–25 kHz) directly modulates average LED current. At 0% duty cycle, the device enters ultra-low-power shutdown (80 nA). The LM3410YSDX/NOPB does not require external pull-up or level-shifting-the DIM pin accepts standard CMOS/TTL logic levels referenced to VIN.
Is the LM3410YSDX/NOPB qualified for automotive use?
Yes, the LM3410YSDX/NOPB is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient), with HBM ESD rating of ±2000 V and CDM rating of ±1000 V. It includes thermal shutdown (165°C), undervoltage lockout (2.65 V rising), and cycle-by-cycle current limiting-features validated for automotive interior lighting and display backlighting. The LM3410YSDX/NOPB shares qualification with the LM3410-Q1 variant, and both meet TI's automotive reliability standards per SNVS541H.
LM3410YSDX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- 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:
- 525kHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (3x3)
LM3410YSDX/NOPB FAQ
1.How can I place an order for LM3410YSDX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410YSDX/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 LM3410YSDX/NOPB reliable?
The price and inventory of LM3410YSDX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410YSDX/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410YSDX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410YSDX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410YSDX/NOPB?
LM3410YSDX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410YSDX/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 LM3410YSDX/NOPB?
For technical support, including LM3410YSDX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410YSDX/NOPB requirements.
6.How does Aetrix verify that LM3410YSDX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410YSDX/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 LM3410YSDX/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410YSDX/NOPB?
All LM3410YSDX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410YSDX/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 LM3410YSDX/NOPB part is unused and in its original packaging.
Return procedure for LM3410YSDX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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