LP5521TMEV National Semiconductor, LP5521TMEV Datasheet - Page 7

• Manufacturer Part Number: LP5521TMEV
• Description: EVAL BOARD FOR LP5521
• Manufacturer: National Semiconductor

Specifications of LP5521TMEV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q5109809

Getting Started
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Change to Chip #X, repeat steps 6 - 9 for all chips, but
11. Press TRIG button on evaluation software or evaluation
Connect the USB cable from the evaluation Kit to the
USB port of your PC. When you plug in the USB cable
for the first time, your operating system prompts you
about “New hardware found” and installs the USB driver
automatically.
Make sure that the jumpers on evaluation boards are set
as wanted.
Start the software lp5521x4.exe by double-clicking its
icon.
Press ENABLE button on the lower left corner.
Press CLK_32K button on the lower left corner.
ENABLE and CLK_32K should now be pressed down.
Press Read All button, to read the current state of the
control bits.
Enable chip and charge pump 1.5x mode by enabling the
chip_en and cpmode[1] register bits.
Browse for bouncing_light_4xnjoy_chip1.bin file on
SRAM memory data and press Upload button.
Then press Run button to start the sequence. First
command on is "wait for external" trigger, so LEDs do not
light yet.
select bouncing_light_4xnjoy_chipX.bin
board to start the sequence.
7
12. If you want to change sequence, press browse button
13. To change the device under control press one of the Chip
EASY START WITH DIRECT PWM CONTROL
1.
2.
3.
4.
5.
6.
7.
8.
and select different demo program and press Upload
button to write the program to chip SRAM.
# tabs. Software is uploaded to each device individually.
Start the Evaluation Software.
Press ENABLE button on the lower left corner.
Press CLK_32K button on the lower left corner.
ENABLE and CLK_32K should now be pressed down.
Press Read All button, to read the current state of the
control bits.
Enable chip and charge pump 1.5x mode by enabling the
chip_en and cpmode[1] register bits.
Set to register map: R_MODE[1:0] = 11, G_MODE[1:0]
= 11, B_MODE[1:0] = 11.
Adjust RED, GREEN and BLUE PWM values/sliders for
LED brightness control. Cur[7:0] control bits can be used
to adjust the maximum current. See Figure 2 for correct
software settings.
To change the device under control press one of the Chip
# tabs.
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