RT9278 Просмотр технического описания (PDF) - Richtek Technology

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RT9278

High Efficiency Boost LDO Converter & High Power White LED Driver

Richtek Technology 

RT9278

Preliminary

Parameter

Linear Controller

Feedback Voltage for Linear Controller

EN Input High Level Threshold

EN Input Low Level Threshold

Thermal Shutdown

Thermal Shutdown Hysterises

Symbol

TSD

∆TSD

Test Conditions

VLFB

Min Typ Max Units

-- 0.2 --

V

--

-- 1.3

V

0.4 --

--

V

-- 180 --

°C

--

20

--

°C

Note 1.Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for

stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended

periods may remain possibility to affect device reliability.

Note 2. Devices are ESD sensitive. Handling precaution recommended.

Note 3. The device is not guaranteed to function outside its operating conditions.

Note 4. θJA is measured in the natural convection at TA = 25°C on a high effective thermal conductivity test board of

JEDEC 51-7 (2S2P, 4-Layers) thermal measurement standard.

www.richtek.com

8

DS9278-04 August 2007

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