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LBP01-0803SC5 Datasheet(PDF) 1 Page - STMicroelectronics |
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LBP01-0803SC5 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 8 page  This is information on a product in full production. March 2012 Doc ID 022950 Rev 1 1/8 8 LBP01 LED bypass protection Datasheet − production data Features ■ Bidirectional device: LBP01-0810B ■ Unidirectional device: LBP01-0803SC5 ■ RoHS compliant Benefits ■ Keep LED strings on in case of LED open mode failure ■ Reduced maintenance cost ■ Increase lifetime of the lighting system Complies with the following standards: ■ IEC61000-4-2 level 4 – ±15 kV (air discharge) – ±8 kV (contact discharge) ■ IEC 61000-4-5 – ±1kV / 24 A Applications This device shunts failed LEDs in applications where LED strings can not be turned-off for safety reason due to a LED failure. Main applications are: ■ Automotive headlights ■ Traffic lights ■ Aircraft runaway lights ■ Emergency lighting systems ■ Display panel backlighting ■ Street lighting Figure 1. Functional diagrams Description The LBP01 series are bypass switches to be connected in parallel with 1 or 2 LEDs. In case of LED failure, this allows the current to flow through the other LEDs. It also provides an overvoltage protection against surges defined in IEC 61000-4-2 and IEC 61000-4-5 Their robust dice also protect LEDs against surge. These devices are compatible with LEDs up to 1A. LBP01 are packaged either in SMB or SOT23-5L SMB (DO-214AA) LBP01-0810B SOT23-5L LBP01-0803SC5 Control circuit Control circuit 1 3 5 4 2 LBP01-0803SC5 LBP01-0810B www.st.com |
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