Hello,
I am using a DC-DC converter from DATEL ( BWR-15/670-D12A). The inputs are +15V and the outputs are +15V and -15V. The converter can give upto 670mA of output current on both +15V and -15V individually.
I am using these output voltages to power 2 Linear LDO regulators (LT1962 and LT1964). These regulators take in the +15V and the -15V from the DC-DC converter and convert them to +14.85V and -14.85V respectively.
I use these +14.85V and -14.85V to power 5 LTC2704 (DAC's ), 5 OP400 op-amps, and 5 LT1885 op-amps.
When I turn the power On, the DC-DC converter starts taking in about 0.375A of current, but it rises to 1.0142A, at which point the +14.85V goes down to 1.62V and the input current drops to 0.250A.
Why is this happening ? Any explanations.
Thanks,
abq_guy
I am using a DC-DC converter from DATEL ( BWR-15/670-D12A). The inputs are +15V and the outputs are +15V and -15V. The converter can give upto 670mA of output current on both +15V and -15V individually.
I am using these output voltages to power 2 Linear LDO regulators (LT1962 and LT1964). These regulators take in the +15V and the -15V from the DC-DC converter and convert them to +14.85V and -14.85V respectively.
I use these +14.85V and -14.85V to power 5 LTC2704 (DAC's ), 5 OP400 op-amps, and 5 LT1885 op-amps.
When I turn the power On, the DC-DC converter starts taking in about 0.375A of current, but it rises to 1.0142A, at which point the +14.85V goes down to 1.62V and the input current drops to 0.250A.
Why is this happening ? Any explanations.
Thanks,
abq_guy