5

RT9284A/B

DS9284A/B-05 August 2007

www.richtek.com

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.

JEDEC 51-3 thermal measurement standard.

Note 5. Floating the OVP pin to disable OVP function.

Parameter

Symbol

Test Condition

Min

Typ

Max

Units

MOSFET

On Resistance of MOSFET

--

0.75

--

Ω

Protection

for 2,3,4 WLEDs application

14

15

16

V

OVP Threshold

for 5 WLED application

19

20

21

V

OVP Sink Current

--

5

--

μA

OCP

--

750

--

mA

Shut Down Voltage

--

--

0.4

V

Enable Voltage

1.5

--

--

V