microGen LTC3330 - Current Sense Circuit Gain; Blinking LED Test Circuit

16
Gain Jumper Configurations
The Current Sense Circuit is able to measure current over a wide range (10 µA to 25 mA).
However, the full range is binned into three groups to ensure complete coverage of the current
sensing range. See Table for the gain jumper configurations. Note any configuration not show in
Table 7 is invalid.
Gain
Minimum
Current
Maximum
Current
JP1
Configuration
P6 Configuration
20
510µA
25mA
500
20µA
980µA
10,000
10µA
49µA
Table 7: Gain Configurations
Blinking LED Test Circuit
The Diagnostic Board also contains a Blinking LED Test Circuit. This test circuit is primarily used
as a quick indicator that DC output is being generated from the AC Power Cell rectified and
conditioned by a Power Management Board, but it can also be used as a test load for the Current
Sense Circuit. Use the configuration Figure 13 in the Connections Diagrams section.