Part Number(s)
(NSID) | Top View | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3519MK-20/NOPB
LM3519MK-20
RoHS Status |
TSOT | Full production
Lead Time: 6 weeks
 |
| $0.75 each at 1K+ pcs | reel
of
1000
 |
LM3519MKX-20
RoHS Status |
TSOT | Full production
Lead Time: 16 weeks
|
| $0.75 each at 1K+ pcs | reel
of
3000
|
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM3519.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM3519 is located at RoHS Status.
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3519MKEV
| High Frequency Boost White LED Driver with High-Speed PWM Brightness Control | Full production
|
| $51.00 each | 1 |
| Description:
The LM3519 is a High Frequency Boost White LED Driver with High-Speed PWM Brightness Control. The LM3519 drives up to 4 white LEDs with constant current to provide LCD backlighting in handheld devices. The LED current is internally set to 20mA. The series connection allows the LED current to be identical for uniform brightness and minimizes the number of traces to the LEDs. Brightness control is achieved by aplying a PWM signal on enable with frequencies up to 30kHz. THe LM3519 is available in a tiny 6-pin SOT23 package. The LM3519 evaluation board is a working demonstration of a step up DC-DC converter. A proprietary PFM architecture implementation results in non pulse skipping variable frequency operation over input voltage range permitting the use of low-cost, small external components.
Features:
- Drives 2 to 4 LEDs at 20ma
- Up to 30kHz PWM Dimming Control Capability
- >80% Peak Efficiency
- Up to 8MHz Switching Frequency
- Small External Components: 1 microH - 3.3 microH (typ. 2.2 microH) Inductor and 1 microF Output Capacitor
- True Shutdown Isolation
- Over-Voltage Protection
- Wide Input Voltage Range: 2.7V to 5.5V
- Small Footprint SOT23-6 Package
Applications:
- LCD, White LED Backlighting on Mobile Phones
- Digital Still Cameras and PDAs
- General Purpose LED Lighting in Handheld Devices
|
National Semiconductor follows the provisions of the Product Stewardship Guide for Customers
(
CSP-9-111C1)
and Banned Substances and Materials of Interest Specification
(
CSP-9-111S2)
for regulatory environmental compliance. Details may be found at:
www.national.com/en/packaging/greennopb.html.
Lead free products are RoHS compliant.
Lead Free product status is available through the search tool located
here
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM3519.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM3519 is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM3519MK-20 | ABCD150 | 0 | 42680 | 0 | 0 | 6394000 | 1 | 1814314958
|
|
LM3519MKX-20 | ABCD150 | 0 | 42680 | 0 | 0 | 6394000 | 1 | 1814314958
|
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.
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM3519.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM3519 is located at RoHS Status.
