LBP01-0810B STMicroelectronics

LBP01 LED bypass protection Datasheet production data Features Bidirectional device: LBP01-0810B Unidirectional device: LBP01-0803SC5 RoHS compliant Benefits SOT23-5L SMB Keep LED strings on in case of LED open LBP01-0803SC5 (DO-214AA) mode failure LBP01-0810B Reduced maintenance cost Figure 1. Functional diagrams Increase lifetime of the lighting system Complies with the following standards: Control IEC61000-4-2 level 4 circuit 15 kV (air discharge) 8 kV (contact discharge) LBP01-0810B IEC 61000-4-5 1 1kV / 24 A 3 4 5 Control circuit Applications 2 This device shunts failed LEDs in applications where LED strings can not be turned-off for safety LBP01-0803SC5 reason due to a LED failure. Main applications are: Description Automotive headlights The LBP01 series are bypass switches to be Traffic lights connected in parallel with 1 or 2 LEDs. In case of Aircraft runaway lights LED failure, this allows the current to flow through Emergency lighting systems the other LEDs. Display panel backlighting It also provides an overvoltage protection against surges defined in IEC 61000-4-2 and Street lighting 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 March 2012 Doc ID 022950 Rev 1 1/8 This is information on a product in full production. www.st.com 8Characteristics LBP01 1 Characteristics Table 1. Absolute maximum ratings (T = 25 C) amb Symbol Parameter Value Unit V Peak pulse voltage IEC 61000-4-2 contact discharge 30 kV PP I Repetitive peak pulse current (8/20s) 24 A PP SOT23-5L 0.35 A I On-state DC current F SMB 1 A T Operating junction temperature range -55 to 150 C j T Storage temperature range -65 to 150 C stg T Maximum lead temperature for soldering during 10 s 260 C L Table 2. Electrical characteristics (T = 25 C) amb Symbol Test conditions Min. Typ. Max. Unit I V = 3 V 100 nA RM RM V 815V BO SOT23-5L 200 I mA H SMB 200 (1) I = 0.35 A SOT23-5L 2 V on V I = 0.35 A SMB 1.3 V on on I = 1 A SMB 1.5 V on dV/dt 300 V/s SOT23-5L 140 C/W 2 R On recommended pad layout with copper area of 1 cm th(j-a) SMB 100 C/W 1. Measured between pin 1, 3, 4, or 5 and pin 2 2/8 Doc ID 022950 Rev 1