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A small, low forward voltage Schottky barrier diode suitable for voltage booster circuits of LCD backlights: CLS10F40

Product News 2018-09

The package photograph of a small, low forward voltage Schottky barrier diode suitable for voltage booster circuits of LCD backlights: CLS10F40.

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched "CLS10F40," a small, low forward voltage Schottky barrier diode suitable for voltage booster circuits of white LED backlights for LCDs (liquid crystal displays) used in mobile devices.

LCDs used in mobile devices often use white LEDs as the light sources for backlights. To drive the white LEDs stably, the voltage supplied by the battery needs to be boosted up.
The new product CLS10F40 is used for the rectification of the voltage booster circuits and features a reverse voltage of 40 V and an average forward current of 1 A, supporting an increased number of white LEDs. Its excellent characteristics include both its maximum forward voltage of 0.45 V[1] and maximum leakage current of 25 μA[2], contributing to higher efficiency and lower power consumption of voltage booster circuits. In addition, it is mounted in the small CL2E package (1.0×0.6 mm), contributing to smaller printed circuit boards.

CLS10F40 has reduced its forward voltage by about 17 % compared to the conventional product CBS10F40, and its mounting area has been reduced by about 60 %. Even among products in our lineup, this product can contribute to lower power consumption and smaller printed circuit boards in a well-balanced way.

Notes:
[1] @IF=500 mA
[2] @VR=40 V

Features

  • Small CL2E package: 1.0×0.6 mm (typ.)
  • Low forward voltage: VF=0.45 V (max) @IF=500 mA
  • Low leakage current (Low reverse current): IR=25 μA (max) @VR=40 V

Applications

  • Mobile devices (Smart phone, tablet)
  • Game consoles, etc.

Product Specifications

(@Ta=25 °C)

Part number Package Absolute
maximum ratings
Electrical characteristics
Name Size
typ.
(mm)
Reverse
voltage
VR
(V)
Average
rectified
current
IO
(A)
Forward voltage
VF
max
(V)
Reverse
current
IR
max
@VR=40 V
(μA)
@IF=100 mA @IF=500 mA @IF=1 A
CLS10F40 CL2E 1.0×0.6 40 1.0 0.35 0.45 0.57 25

Equivalent Circuit

The illustration of equivalent circuit of a small, low forward voltage Schottky barrier diode suitable for voltage booster circuits of LCD backlights: CLS10F40.

Application Circuit Example

The illustration of application circuit example of a small, low forward voltage Schottky barrier diode suitable for voltage booster circuits of LCD backlights: CLS10F40.

The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required, especially at the mass-production design stage. Toshiba Electronic Devices & Storage Corporation does not grant any license to any industrial property rights by providing these examples of application circuits.

Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.