LSP1800BJR-S datasheet(1/6 Pages) BOURNS

Part #	LSP1800BJR-S

Description	LED Shunt Protector

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Manufacturer	BOURNS [Bourns Electronic Solutions]

Direct Link	http://www.bourns.com

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Features

■ Fast switching

■ Automatic reset

■ SMB package

■ Suitable for industrial lighting environments

■ RoHS compliant*

Applications

■ LED streetlights

■ LCD backlighting

■ Display lighting

■ Intrinsically safe lighting

Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted)

LSP Series LED Shunt Protector

JANUARY 2011

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

General Information

Bourns® LSP Series protectors are electronic shunts that provide a current bypass

when an LED element in an LED string fails open circuit. This ensures the remaining

string of LEDs will continue to function. There are many cases where high reliability

of the LED lighting must be maintained, such as LCD backlighting, transport lighting,

avionics, intrinsically safe and low maintenance lighting.

The LSP Series is available in surface mount package DO-214AA (SMB) size format.

Rating

Symbol

Value

Unit

Repetitive peak off-state voltage

LSP0600

LSP0900

LSP1300

LSP1800

VDRM

6

9

13

18

V

Average on-state current (Note 1)

IT

350

mA

Operating junction temperature

TJ

-40 to +150

°C

Storage temperature

Ts

-65 to +150

°C

Lead temperature, soldering (10 s)

260

°C

Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)

Parameter

Test Conditions

Min.

Nom.

Max.

Unit

IDRM Repetitive peak off-state current

VD = VDRM

10

µA

V(BO) Breakover voltage

dv/dt = 750 V/ms,

RSOURCE = 300

LSP0600

LSP0900

LSP1300

LSP1800

6

9

13

18

16

18

26

33

V

IH

Holding current

IT = 1 A, di/dt = 30 mA/ms

5

30

mA

IBO Breakover current

di/dt = 0.8 A/ms

75

mA

VT

On-state voltage

IT = 1 A

1.2

V

Anode

Cathode

Control

Circuit

LSPxx00

Notes:

1. Using 75 mm x 75 mm 4-Layer PCB (EIA/JESD51-7), IT = 1.0 A

Thermal Characteristics (@ TA = 25 °C Unless Otherwise Noted)

Parameter

Test Conditions

Min.

Nom.

Max.

Unit

Junction to free air thermal resistance

EIA/JESD51-3 PCB, IT= 350 mA,

TA= 25 °C

170

°C/W

Junction to free air thermal resistance

EIA/JESD51-7, 75 mm x 75 mm 4-Layer

PCB, IT = 1.0 A, TA= 25 °C

90

°C/W

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