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Texas Instruments LM3410XMY/NOPB
- Part No.:
- LM3410XMY/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LM3410XMY/NOPB.pdf
- Description:
- IC LED DRV RGLTR PWM 8HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,411
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Product details
Overview
LM3410XMY/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 LM3410XMY/NOPB datasheet, LM3410XMY/NOPB pinout, LM3410XMY/NOPB application, or LM3410XMY/NOPB equivalent, this page provides verified pin functions, thermal shutdown behavior, switching frequency tolerance (±25%), current-mode control architecture, and real-world dimming performance at 200 Hz–25 kHz PWM frequencies.
Technical Context
The LM3410XMY/NOPB implements fixed-frequency current-mode PWM control with internal compensation, enabling stable regulation without external loop components. Its 1.6-MHz oscillator sets minimum on-time and supports ceramic capacitors and miniature inductors-critical for space-constrained portable designs.
It features cycle-by-cycle current limiting (2.8-A typical peak), thermal shutdown at 165°C, and ultra-low 80-nA shutdown current. The DIM pin accepts logic-level PWM signals (0–100% duty cycle) to modulate average LED current without analog control circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching frequency | 1.6 MHz ±25% - enables use of ≤2.2-µH inductors and 0.47-µF ceramic output capacitors |
| Feedback voltage (VFB) | 190 mV ±6 mV - sets LED current via RSET = 190 mV / ILED; stable over –40°C to 125°C |
| 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 1–7 series white LEDs (VF ≈ 3.3 V each) or HB LED strings |
| Switch on-resistance | 170 mΩ (typical) - limits conduction loss at 2.8-A peak; supports >85% efficiency at 350-mA load |
| Quiescent current | 11 mA (operating), 80 nA (shutdown) - enables battery-powered operation with minimal standby drain |
| Thermal shutdown | 165°C (trip), ~150°C (hysteresis) - protects against sustained overload or poor PCB thermal design |
Pinout & Package
LM3410XMY/NOPB is packaged in a 5-pin SOT-23 (DBV) with 3.00 mm × 3.00 mm body size and exposed pad for thermal dissipation. Pin 1 = SW, Pin 2 = GND, Pin 3 = FB, Pin 4 = DIM, Pin 5 = VIN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pin 1) | Switch node output | Drives inductor in boost/SEPIC topology; swings from GND to VOUT + VF(D1); requires low-inductance layout |
| GND (Pin 2) | Signal ground | Reference for FB and DIM; must be connected near bottom resistor of RSET network to minimize noise coupling |
| FB (Pin 3) | Current-sense feedback input | Monitors voltage across RSET; regulates ILED = 190 mV / RSET; high-impedance (≤1 µA bias) |
| DIM (Pin 4) | PWM dimming/shutdown control | Logic-high (>1.8 V) enables operation; 0–100% PWM duty cycle controls average LED brightness; <100 nA leakage |
| VIN (Pin 5) | Power supply input | Supplies internal regulator and NMOS gate drive; bypass with 4.7–10 µF ceramic capacitor close to pin |
Key Features
| Feature | Design Value |
|---|---|
| Internal 170-mΩ NMOS switch | Eliminates external MOSFET and reduces BOM count; supports 2.8-A peak current without derating at TA ≤ 85°C |
| 1.6-MHz fixed-frequency PWM | Enables compact magnetics (e.g., 1.5 µH) and avoids audible noise; maintains stability across input/output voltage ranges |
| 190-mV precision feedback reference | Provides ±6 mV accuracy over temperature; enables tight LED current matching (<±3%) across production units |
| Internal soft-start | Prevents inrush current during startup; eliminates need for external RC timing network or enable sequencing |
| Thermal shutdown with hysteresis | Protects against sustained overloads; automatic recovery at ~150°C prevents latch-up and enables fault-tolerant operation |
Applications
| Automotive Interior Lighting | Handheld Device Backlight |
|---|---|
|
Use Scenario: Driving 3–5 white LEDs in instrument cluster or ambient lighting modules powered by 12-V battery (via 3.3-V LDO). IC Role / Device Role / Timing Role: Constant-current boost controller regulating 20–100 mA per string; 1.6-MHz switching avoids AM-band interference. Use Value: AEC-Q100 Grade 1 qualification (–40°C to 125°C) ensures reliability under engine bay thermal cycling; 80-nA shutdown current preserves battery life during vehicle sleep mode. |
Use Scenario: Powering dual 4-LED strings in smartphone display backlight using single-cell Li-ion (2.7–4.5 V). IC Role / Device Role / Timing Role: SEPIC topology maintains regulation as battery voltage drops below LED forward voltage; DIM pin accepts 200-Hz PWM for flicker-free dimming. Use Value: Small SOT-23 footprint saves PCB area; internal compensation eliminates tuning effort; 170-mΩ RDS(on) sustains >87% efficiency at 350-mA total load. |
| LED Flash Driver | OLED Bias Supply |
|
Use Scenario: Delivering 1-A pulsed current to single high-power white LED in camera flash module. IC Role / Device Role / Timing Role: Boost converter operating in discontinuous conduction mode (DCM); 1.6-MHz frequency allows fast transient response to flash trigger signal. Use Value: 2.8-A switch current limit accommodates 1-A LED pulses with margin; thermal shutdown prevents damage during repeated flash bursts. |
Use Scenario: Generating stable 12-V bias for OLED panel anode supply in portable media player. IC Role / Device Role / Timing Role: Constant-voltage boost stage (using FB feedback with divider) delivering 100-mA continuous output. Use Value: 190-mV reference enables precise voltage setting via standard 1% resistors; 5.5-V max input supports USB-powered operation. |
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 |
|---|---|---|---|
| LM3410YMY/NOPB | 525-kHz switching frequency; higher RDS(on) (190 mΩ WSON, 170 mΩ SOT-23); same pinout and FB reference | Better efficiency at medium loads due to lower switching loss; requires larger inductor (≥4.7 µH) and capacitor | Select when board space permits larger passives and EMI filtering is prioritized over miniaturization. |
| TPS61165DRVR | 1.2-MHz fixed frequency; integrated 2-A switch; 200-mV FB reference; no thermal shutdown hysteresis | Higher integration (no external diode needed); lacks AEC-Q100 qualification; different DIM interface (active-low enable) | Choose for cost-sensitive consumer designs where automotive qualification is unnecessary and diode elimination reduces BOM count. |
Compared with LM3410XMY/NOPB, LM3410YMY/NOPB trades switching speed for improved light-load efficiency and relaxed EMI filtering, while TPS61165DRVR offers higher integration at the expense of automotive compliance and thermal protection granularity.
Availability
LM3410XMY/NOPB is available at Aetrix Electronics and suitable for automotive interior lighting, handheld device backlighting, and LED flash driver designs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for LM3410XMY/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 and embedded processing technologies, with leadership in power management, signal chain, and automotive-grade ICs.
The LM3410 family was designed specifically for high-efficiency, space-constrained LED current regulation in automotive and portable electronics-emphasizing internal compensation, wide input range, and robust thermal protection.
FAQ
What is the maximum output voltage supported by the LM3410XMY/NOPB?
The LM3410XMY/NOPB supports output voltages up to 24 V, as specified in its recommended operating conditions. This limit ensures safe operation of the internal 170-mΩ NMOS switch and external components like the Schottky diode and output capacitor. Exceeding 24 V risks violating absolute maximum ratings and may trigger overvoltage stress on the SW pin or FB network. Always verify output voltage margin against LED string forward voltage plus diode drop and ripple.
Can the LM3410XMY/NOPB drive multiple parallel LED strings?
The LM3410XMY/NOPB is optimized for single-string constant-current regulation. Driving parallel LED strings directly is not recommended due to mismatch-induced current imbalance-each string's forward voltage variation causes unequal current sharing. For multi-string applications, use individual LM3410XMY/NOPB channels or add current-matching resistors. TI's reference designs confirm single-string topology as the validated configuration for LM3410XMY/NOPB.
Does the LM3410XMY/NOPB require external compensation components?
No, the LM3410XMY/NOPB uses internal compensation and requires no external compensation components. Its current-mode control architecture with fixed 1.6-MHz frequency and integrated error amplifier eliminates the need for external RC networks or type-II/III compensators. This simplifies layout and improves production consistency-confirmed in Section 7.1 and Figure 11 of the SNVS541H datasheet.
What is the purpose of the DIM pin on the LM3410XMY/NOPB?
The DIM pin on the LM3410XMY/NOPB serves dual functions: PWM dimming control and logic-level shutdown. Applying a logic-high signal (>1.8 V) enables operation, while a logic-low signal (<0.4 V) places the device in ultra-low 80-nA shutdown mode. When driven with a PWM signal (200 Hz–25 kHz), it modulates average LED current proportionally to duty cycle-enabling flicker-free brightness control without analog current-setting complexity.
Is the LM3410XMY/NOPB qualified for automotive applications?
Yes, the LM3410XMY/NOPB is qualified for automotive applications under AEC-Q100 Grade 1, supporting ambient operating temperatures from –40°C to 125°C. It meets HBM ESD Level 2 (±2000 V) and CDM Level C6 (±1000 V), and includes thermal shutdown at 165°C with hysteresis. These qualifications are explicitly stated in the "Features" section of the SNVS541H datasheet and apply to the LM3410XMY/NOPB variant.
LM3410XMY/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-PowerTSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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:
- 8-HVSSOP
LM3410XMY/NOPB FAQ
1.How can I place an order for LM3410XMY/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM3410XMY/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 LM3410XMY/NOPB reliable?
The price and inventory of LM3410XMY/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM3410XMY/NOPB is usually 5 days.
3.What payment methods are accepted for LM3410XMY/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM3410XMY/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM3410XMY/NOPB?
LM3410XMY/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM3410XMY/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 LM3410XMY/NOPB?
For technical support, including LM3410XMY/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM3410XMY/NOPB requirements.
6.How does Aetrix verify that LM3410XMY/NOPB is sourced from the original manufacturer or authorized distributors?
All LM3410XMY/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 LM3410XMY/NOPB meets industry standards.
7.What is the process for return or replacement of LM3410XMY/NOPB?
All LM3410XMY/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM3410XMY/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 LM3410XMY/NOPB part is unused and in its original packaging.
Return procedure for LM3410XMY/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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