AN2810 Datasheet, PDF (11/17 Pages) STMicroelectronics – 6-row 85 mA LED driver with boost

AN2810
8
Test setup
Test setup
An appropriate white LED array is required as a load to correctly evaluate the LED7706.
Figure 7 shows a possible assembly of the LED7707 with a WLED test board. This
demonstration board includes 60 white LEDs (150 mA), switches, jumpers and test points
which can be used to easily perform functional testing of the LED7707.
Figure 7. LED7707 demonstration board and white LED test board assembly
Figure 8 shows the complete test setup.
Figure 8. LED7707 demonstration board test setup
DIM GND
VIN-
VIN+
PWM Generator
6V – 32V @ 2A
+
Power Supply
A-Meter
ROW1
CH1 CH2
Scope
VBOOST
V-Meter
6x10 – 75mA WLEDs ARRAY
Doc ID 14893 Rev 1
11/17