Linear Technology DC980A Manual page 7

alternate Dc980a poWerinG methoD
The DC980A board may be powered from the input supply
that powers the DC980B board. This configuration allows
the LTC2970 to make a direct reading of VIN and display
the readback value in the V12_ADC_LTC2970 register in
LTpowerPlay. It requires an external jumper wire. Ensure
that all power is removed from both boards. On the DC980A
The 12V telemetry register and plot should look like this:
Figure 3. Connecting DC980A/B Boards with VIN Jumper to 12VIN Turret
DEMO MANUAL
DC980A/DC980B
board, move jumper JP7 to the LOCAL position. Place a
jumper wire between the VIN turret of the DC980B and
the 12VIN turret of the DC980A. Note that the LTC2970's
voltage range is 8V to 15V. Ensure that the DC980B is
powered by a voltage between 8V and 15V. Apply power.
dc980abf
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