LBP01-0810B Datasheet, PDF (1/8 Pages) STMicroelectronics – LED bypass protection

LBP01
LED bypass protection
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
Datasheet − production data
SMB
(DO-214AA)
LBP01-0810B
SOT23-5L
LBP01-0803SC5
Figure 1. Functional diagrams
Control
circuit
LBP01-0810B
1
3
4
5
Control
circuit
2
LBP01-0803SC5
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
1 A.
LBP01 are packaged either in SMB or SOT23-5L
March 2012
This is information on a product in full production.
Doc ID 022950 Rev 1
1/8
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