Si87xx-EVB
4. Open Loop POL Evaluation Board
The power and jumper connections descriptions are summarized here:
P1
P2
J1
External input signal connections to drive the LED Emulator.
External output signal connections.
Jumper when installed used to accommodate common-anode drive.
Jumper when installed used to accommodate common-cathode drive.
Jumper used to connect external pull-up resistor R4.
J2
J3, J5
J4
Jumper used to tie the enable pin to VDD and activate the output of the Si8712; the jumper can
also be used activate the internal pull-up resistor on the Si8711.
4.1. Voltage and Current Sense Test Points
The Si87xx evaluation board has several test points. These test points correspond to the respective pins on the
Si87xx integrated circuits as well as other useful inspection points. See Figures 7 through 10 for a silkscreen
overview. See schematics in Figures 11 through 14 for more details.
Figure 7. Si87xx DIP8 Evaluation Board Silkscreen
Figure 8. Si87xx SOIC8 Evaluation Board Silkscreen
Rev. 0.3
7
SILICONIMAGE [ Silicon image ]
