RT8511B

5

DS8511B-05

February 2015

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Copyright

2015 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

LED Current

Minimum PWM Dimming Duty

Cycle

Dimming Freq. = 100Hz to 8kHz

1

--

--

%

Feedback Voltage

195

200

205

mV

Fault Protection

LX Current Limit

1.66

2.2

2.74

A

Over Voltage Protection

Threshold

1.14

1.2

1.26

V

Thermal Shutdown

Temperature

--

160

--

°C

Thermal Shutdown Hysteresis

--

30

--

°C

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.

measured at the exposed pad of the package.

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

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