For some reason my lm385-2.5 voltage reference only outputs 0.47V instead of the 2.5V. Current flowing is 0.35 :mu: A, the minimum operating current is 13 :mu: A.
For some reason my lm385-2.5 voltage reference only outputs 0.47V instead of the 2.5V. Current flowing is 0.35 :mu: A, the minimum operating current is 13 :mu: A.
You must also use a digital meter(10M internal impedance) to measure the voltage. An analogue meter(only 100K impedance @20K/V range DC5V) will shunt most of the current from the LM385.
Guys, I increased the current to 15mA but the voltage is still not 2.5V. It is just increasing a little bit every time I increase the current, it is now at 0.8V.
Why else could be wrong ? The connection is correct.
to justDIY, actually, I am using it in a solar application (solar batt charger).
Guys, I increased the current to 15mA but the voltage is still not 2.5V. It is just increasing a little bit every time I increase the current, it is now at 0.8V.
Why else could be wrong ? The connection is correct.
to justDIY, actually, I am using it in a solar application (solar batt charger).
First you try to put a schematic of what you have done. Also check whether the device is connected properly without reversal. and that the device is not faulty or gone bad later while trying?