The LM3407 is a constant current output floating buck switching converter designed to provide constant current to high power
LEDs. The device is ideal for automotive, industrial and general lighting applications. The LM3407 has an integrated power
N-MOSFET that makes the application solution compact and simple to implement. An external 1% thick-film resistor allows the
converter output voltage to adjust as needed to deliver constant current within 10% accuracy to a serially connected LED string
of varying number and type. Converter switching frequency is adjustable from 300 kHz to 1 MHz. The LM3407 features a dimming
input to enable LED brightness control by Pulse Width Modulation (PWM). Additionally, a separate enable pin allows for low
power shutdown. An exposed pad eMSOP-8 package provides excellent heat dissipation and thermal performance. Input UVLO and
output open-circuit protection ensure a robust LED driver solution.
| Title | Size in Kbytes |
Date |
 |
| AN-103: Application Note 103 LM340 Series Three Terminal Positive Regulators |
421
Kbytes |
3-Oct-02 |
Download |
| AN-1657: Application Note 1657 LM3401 Demo Board |
891
Kbytes |
29-Jul-08 |
Download |
AN-1657 (Chinese): Application Note 1657 LM3401 Demo Board
|
351 Kbytes |
|
 |
| AN-1192: Application Note 1192 Overture™ Series High Power Solutions |
548
Kbytes |
15-Jun-04 |
Download |
| AN-1982: Application Note 1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool |
63
Kbytes |
15-Jul-09 |
Download |
| AN-1839: Application Note 1839 LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board |
678
Kbytes |
10-Dec-08 |
Download |
AN-1839 (Chinese): Application Note 1839 LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board
|
746 Kbytes |
|
|
| AN-1545: Application Note 1545 LM3404/LM3404HV Evaluation Board |
665
Kbytes |
14-Aug-09 |
Download |
AN-1545 (Chinese): Application Note 1545 LM3404/LM3404HV Evaluation Board
|
493 Kbytes |
|
|
| AN-1585: Application Note 1585 LM3402 and LM3404 High Power PSOP-8 Evaluation Board |
493
Kbytes |
4-Oct-07 |
Download |
| AN-1500: Application Note 1500 LM3402/02HV Demo Board |
29977
Kbytes |
5-Jun-07 |
Download |
AN-1500 (Chinese): Application Note 1500 LM3402/02HV Demo Board
|
531 Kbytes |
|
|
| AN-127: Application Note 127 LM143 Monolithic High Voltage Operational Amplifier Applications |
441
Kbytes |
2-May-04 |
Download |
| AN-298: Application Note 298 Isolation Techniques for Signal Conditioning |
379
Kbytes |
2-Oct-02 |
Download |
| AN-182: Application Note 182 Improving Power Supply Reliability with IC Power Regulators |
27
Kbytes |
3-Oct-02 |
Download |
| AN-1853: Application Note 1853 COT Drivers Control LED Ripple Current |
158
Kbytes |
23-Sep-08 |
Download |
| AN-1750: Application Note 1750 LM3406 Evaluation Board |
481
Kbytes |
9-Sep-08 |
Download |
| AN-1954: Application Note 1954 LM3409 Demonstration Board |
607
Kbytes |
11-Jun-09 |
Download |
AN-1954 (Chinese): Application Note 1954 LM3409 Demonstration Board
|
502 Kbytes |
|
|
| AN-1590: Application Note 1590 LM3405 Demo Board |
475
Kbytes |
19-Mar-07 |
Download |
| AN-1644: Application Note 1644 Powering and Dimming High-Brightness LEDs with the LM3405 Constant-Current Buck Regulator |
174
Kbytes |
17-Jan-08 |
Download |
| AN-181: Application Note 181 3-Terminal Regulator Is Adjustable |
165
Kbytes |
1-May-04 |
Download |
| AN-1529: Application Note 1529 LM3430 Evaluation Board |
2770
Kbytes |
21-Aug-07 |
Download |
AN-1529 (Chinese): Application Note 1529 LM3430 Evaluation Board
|
789 Kbytes |
|
|
| AN-1148: Application Note 1148 Linear Regulators: Theory Of Operation and Compensation |
200
Kbytes |
10-May-04 |
Download |
AN-1148 (Japanese): Application Note 1148 Linear Regulators: Theory Of Operation and Compensation
 |
216 Kbytes |
|
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AN-1148 (Chinese): Application Note 1148 Linear Regulators: Theory Of Operation and Compensation
|
396 Kbytes |
|
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