LM3405AXMKE/NOPB Texas Instruments Integrated Circuit (SOT23 (6-Pin)) In Stock
Texas Instruments LM3405AXMKE/NOPB is a single-channel constant-current LED driver in a 6-pin SOT-23 package, designed for driving LEDs with regulated current output and high efficiency. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- LM3405AXMKE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3032(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3405AXMKE/NOPB?
- Single-channel constant-current output ensures stable LED brightness independent of supply voltage variations across the full operating range
- Compact 6-pin SOT-23 package enables placement in space-constrained LED luminaire and backlight driver boards
- Lead-free JESD-609 e3 compliant construction meets RoHS requirements for consumer, automotive, and industrial lighting applications
What is LM3405AXMKE/NOPB used for?
The LM3405AXMKE/NOPB is suited for single-string LED backlighting in small LCD displays, status indicators, and architectural accent lighting where a regulated constant-current source is required. Its compact SOT-23 footprint allows integration directly adjacent to the LED load on densely packed PCBs in handheld devices, wearables, and IoT sensor nodes. The device also serves in automotive interior lighting and industrial panel indicators operating from regulated 5 V to 12 V DC rails.
What are the specifications of LM3405AXMKE/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Multiplexed Display Capability | NO |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Number of Segments | 1 |
| Output Characteristics | CONSTANT-CURRENT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max | 22V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 12V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| fmax-Min | 0.005MHz |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM3405AXMKE/NOPB datasheet?
LM3405AXMKE/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3405AXMKE/NOPB?
Compatible alternatives and drop-in replacements for LM3405AXMKE/NOPB:
Frequently Asked Questions
How does LM3405AXMKE/NOPB regulate LED current, and why is constant-current control important for LED longevity?
The LM3405AXMKE/NOPB uses a constant-current output topology that maintains a fixed LED drive current regardless of supply voltage fluctuations or LED forward voltage variation. Constant-current drive prevents thermal runaway that occurs when LED current increases with temperature under voltage-mode control, extending LED lifetime beyond 50,000 hours by keeping junction temperature and current stress within rated limits.
What output configuration does LM3405AXMKE/NOPB support, and how many LED channels can it drive?
The LM3405AXMKE/NOPB is a single-channel LED driver with one constant-current output, supporting 1 LED string per device. For designs requiring multiple independent channels, such as RGB LED control or multi-string backlights, multiple LM3405AXMKE/NOPB devices can be used in parallel, one per string, with each setting its own current level via an external resistor connected to the RSET or feedback pin.
What is the PCB footprint of the LM3405AXMKE/NOPB, and what placement guidelines apply to high-current LED designs?
The LM3405AXMKE/NOPB is housed in a 6-pin SOT-23 package measuring approximately 2.9 mm × 1.6 mm, with a 0.95 mm pin pitch. For LED drive designs carrying 300 mA or more per string, output trace widths should be at least 0.5 mm per ampere to limit resistive voltage drop, and the IC should be placed within 10 mm of the LED anode connection to minimize parasitic inductance and switching noise on the current loop.
Is LM3405AXMKE/NOPB compatible with PWM dimming, and what dimming frequency range is recommended?
Yes, the LM3405AXMKE/NOPB supports PWM dimming by toggling the enable or shutdown pin at a user-defined duty cycle. Typical PWM dimming frequencies between 100 Hz and 10 kHz are used in LED lighting and display applications to avoid visible flicker while achieving smooth brightness adjustment from 1% to 100%. For display backlights, dimming frequencies above 1 kHz are recommended to eliminate flicker visible to human eyes at dim settings.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8250 | $0.82 |
| 25+ | $0.3300 | $8.25 |
| 100+ | $0.3053 | $30.53 |
| 100000+ | $0.3032 | $30320.00 |
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