LM3421
(ACTIVE) N-Channel Controllers for Constant Current LED Drivers

Description &
Features
Sample &
Buy
Technical
Documents
Tools &
Software
Support & Community
WEBENCH® LM3421
 
4.50 <=


V in Lower
 V
 
<=


V in Upper
 V
 
<= 75.00
Ambient Temp  °C <= 100
Light Output (optional)  Lumens



What are WEBENCH® tools?

Sample & Buy

Free Samples Buy from Authorized Distributors Part # Status Temp (oC) Price | QTY Package | Pins Device Marking Package QTY | Carrier Distributor Inventory TI 1k Lead Time
LM3421MH/NOPB ACTIVE -40 to 125 1.38 | 1ku HTSSOP (PWP) | 16 View 92 | TUBE 1K - 5K 1k quantity lead time: In stock
Not Available
LM3421MHX/NOPB ACTIVE -40 to 125 1.15 | 1ku HTSSOP (PWP) | 16 View 2500 | LARGE T&R >5K 1k quantity lead time: In stock

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Technical Documents

Datasheet (1)

Application Notes (2)

Selection & Solution Guides (1)

Title Type Size (KB) Date Views
PDF 9158 11 Mar 2013 28,717

External Articles (4)

Circuit Design & Simulation

WEBENCH® LM3421
 
4.50 <=


V in Lower
 V
 
<=


V in Upper
 V
 
<= 75.00
Ambient Temp  °C <= 100
Light Output (optional)  Lumens



What are WEBENCH® tools?

Design Kits & Evaluation Modules (3)

Name Part# Type
Boost 2 Layer LED Driver Evaluation Board LM3423BS2LYEV Evaluation Modules & Boards
LM3423 Buck-Boost 2-Layer Low Side Current Sense Evaluation Board LM3423BBLSCSEV Evaluation Modules & Boards
SEPIC LED Driver Evaluation Board for Automotive Applications LM3421-SEPICEV Evaluation Modules & Boards

Related End Equipment

  • LED Drivers - Buck, Boost, Buck-Boost, and SEPIC
  • Indoor and Outdoor Area SSL
  • Automotive
  • General Illumination
  • Constant-Current Regulators



Support & Community


TI E2E™ Community

TI E2E Community

As a member of my.TI you can join the TI E2E™ Community where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Contents are provided "AS IS" by the respective TI and Community contributors and do not constitute TI specifications. See Terms of Use.

Training & Events

Name Type Available During
Digital Power Supply Design Workshop
Do you want to reduce your development time of digital power supplies or code a digital controller?
Multi-Day Workshops   Tue, 06 May 2014 - Thu, 08 May 2014  
High Current Battery Charger Solutions for Portable Devices
This video is a must see for anyone involved with the design in of a battery charger for a high current portable device.
On-Line Training   On Demand  
Single Cell Charge Considerations
Learn many Single Cell Charge considerations. System overview, input considerations, limitations, topology and thermal issues.
On-Line Training   On Demand  
Wireless Power Tx Design
If you have difficulty in designing Wireless Power Transmitters, this video will provide you with a lot of tips for doing it.
On-Line Training   On Demand  
PCB Layout Guidelines for Fuel Gauge Design
The pack designer must take care to design the hardware to protect the pack in the conditions where it will be used.
On-Line Training   On Demand  
Click Here