RT8457A datasheet(5/11 Pages) RICHTEK

Part #	RT8457A

Description	Isolated Secondary-Side LED Lighting Dimmable Current Controller

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Manufacturer	RICHTEK [Richtek Technology Corporation]

Direct Link	http://www.richtek.com

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5 / 11 page

RT8457A

5

DS8457A-02

September 2013

www.richtek.com

©

Copyright

is a registered trademark of Richtek Technology Corporation.

Note 1. Stresses beyond those listed

“Absolute Maximum Ratings” may cause permanent damage to the device. These are

stress ratings only, and 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 may

affect device reliability.

Note 2.

θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7.

Note 3. Devices are ESD sensitive. Handling precaution is recommended.

Note 4. The device is not guaranteed to function outside its operating conditions.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

ACTL Threshold for Max LED

Current

1

1.1

1.2

V

OUT Sink Current

IOUTH

VOUT = 1.5V

--

6

--

mA

OUT On-Voltage

VOUTL

IOUT = 2mA

--

0.5

V

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