LP55281RLEV National Semiconductor, LP55281RLEV Datasheet - Page 7

• Manufacturer Part Number: LP55281RLEV
• Description: BOARD EVAL FOR LP5528 RGB DRIVER
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LP55281RLEV

• Current - Output / Channel: 400mA
• Outputs And Type: 12, Non-Isolated
• Voltage - Output: 5.3V
• Features: USB Interface
• Voltage - Input: 2.7 ~ 5.5V
• Utilized Ic / Part: LP55281
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LED TEST TAB
In LED test tab all the LEDs are tested with one press of a
button. You can set Boost voltage, RGB 1-4 currents and
ALED current. After pressing Start, test program automati-
cally tests all the LEDs and Boost voltage. Results are dis-
played on a table with ADC code, both in HEX and in DEC,
voltages and forward voltages for the LEDs.
Figure 7. LED Test Tab
7
After performing the LED test, the device is reset and have to
be put to active mode again. Also the boost is disabled. The
RGB LEDs PWM value is set to 100%, RGB current values,
ALED current and Boost voltage are set as you have chosen.
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