Hi Marek,
Thanks for your reply.
Q1: The package of LMP7721 is two large. Is there any other smaller package device and can replace LMC6482 and LT6000?
The bias current of OPA379 is 50pA. It is higher than LMC6482. And the bias current of OPA388…
Other Parts Discussed in Thread: TPS61200 , OPA379
In the appnote/datasheet there is a suggested mppt-like circuit to avoid the TPS61200 from overloading a solar cell during startup. I am wondering if C5 is really supposed to connect to the output pin of…
Hello,
The OPA379 is really not comparable to the OPA340 or OPA350 devices which feature significantly higher output drive and bandwidth than the OPA379. The OPA379 is optimized for ultra-low power applications because of its 2.9uA quiescent current…
Henning,
The typical input bias current, IB, specified in OPA379 datasheet is 5pA at 25C and according to Fig 14 becomes ~60pA at 70C (12x increase) so the maximum IB specified as 50pA at 25C could become 50pA*12=~600pA at 70C.
Datasheet specifies the maximum…
So, the MPP circuit works by looking at the divided down cell voltage, comparing this to a reference (TLV431), and then adding or subtracting current to the FB pin of the TPS61200. The OPA379's current sourced or sinked through R7 has the result of tricking…
Other Parts Discussed in Thread: TPS61200 , OPA379 I have a customer with the following question:
In working on the MPPT hardware, I am looking at doing something like in the App Note SLVA345A, Figure 2. However,... (1) The tps61200 is only unidirectional…