Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
 |
| LM5021 AC-DC Current Mode PWM Controller |
747
Kbytes |
29-Jun-05 |
Download |
LM5021 AC-DC Current Mode PWM Controller (Japanese)
 |
533 Kbytes |
|
 |
Package Availability, Models, Samples & Pricing
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
LM5021NA-2
| NONE
| NATIONAL SEMICONDUCTOR
| 01 Dec 2009
|
General Description
The LM5021 off-line pulse width modulation (PWM) controller contains all of the features needed to implement highly efficient off-line single-ended flyback and forward power converters using current-mode control. The LM5021 features include an ultra-low (25 µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications (ENERGY STAR®, CECP, etc.). Additional features include under-voltage lockout, cycle-by-cycle current limit, hiccup mode overload protection, slope compensation, soft-start and oscillator synchronization capability. This high performance 8-pin IC has total propagation delays less than 100nS and a 1MHz capable oscillator that is programmed with a single resistor.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM5021MM-1 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
|
LM5021MM-2 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
|
LM5021MMX-1 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
|
LM5021MMX-2 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
|
LM5021NA-1 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
|
LM5021NA-2 | ABCD150 | 0 | 34175 | 0 | 0 | 4234000 | 1 | 1201409060
|
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
Reference Designs
More Application Notes
| Title | Size in Kbytes |
Date |
|
| AN-1875: Application Note 1875 LM5073HE Evaluation Board With Active Bridge |
230
Kbytes |
2-Jul-08 |
Download |
| AN-1976: Application Note 1976 LM5027 Evaluation Board |
588
Kbytes |
19-Aug-09 |
Download |
| AN-1574: Application Note 1574 LM5073 Evaluation Board |
464
Kbytes |
24-Apr-07 |
Download |
| AN-1387: Application Note 1387 LM5026 Evaluation Board |
721
Kbytes |
7-Sep-05 |
Download |
AN-1387 (Chinese): Application Note 1387 LM5026 Evaluation Board
|
535 Kbytes |
|
 |
| AN-1696: Application Note 1696 Designing a Boost LED Driver Using the LM5022 |
286
Kbytes |
22-Feb-08 |
Download |
AN-1696 (Chinese): Application Note 1696 Designing a Boost LED Driver Using the LM5022
|
410 Kbytes |
|
|
| AN-1314: Application Note 1314 LM5020 Evaluation Board |
612
Kbytes |
10-Feb-05 |
Download |
| AN-1605: Application Note 1605 LM5022 Boost LED Driver Evaluation Board |
769
Kbytes |
2-Oct-07 |
Download |
| AN-1557: Application Note 1557 LM5022 Evaluation Board |
513
Kbytes |
22-May-08 |
Download |
AN-1557 (Chinese): Application Note 1557 LM5022 Evaluation Board
|
497 Kbytes |
|
|
[Information as of 8-Nov-2009]
|
