The resistor R2 in figure 22 (bq51050B Data Sheet) is internal to the device. It is only shown for a better understanding of the circuit. The older devices, bq51013 did have a VSTB pin and a 20k external resistor was required. New devices starting with…
Hello Campo Zeng
The new improved device bq51013A device has released. Samples of the QFN version are available in the product folder.
Best Regards
Bill
Benjamin,
Two more suggestions:
Using the bq2425x charger family with bq51013B, we suggest using the HPA764 Rev C unseated, it is the most updated.
Also, Bq51013 is old part; use the bq51013B (wpc1.1 compliant) or at least a bq51013A if wpc1…
Other Parts Discussed in Thread: BQ51013A Hi,
Sorry for my english, but I don't understand how to send a "End Power Transfer with Charge complete"?? I use a BQ51013EVM-725 and a BQ500210EVM-689
if the TS pin is connect to the gnd, I have the red led…
Yes—the RX will communicate with the TX using load modulation and changes in the output load look the same. But the TX only has to receive a valid communication packet every 1.2sec to continue power transfer. The packets are sent every 250mS.
More filtering…
Bill, thanks for your quick reply.
my question is a simple curiosity to create a prototype to test the technology and are interested in bq500211 as a solution with low-voltage input. I saw (# http://www.ti.com/product/bq500211?qgpn=bq500211 buy) it…
Other Parts Discussed in Thread: BQ51014 , BQ51013A How does an NTC get connected to the bq51014? The bq51014 datasheet in figure 2 shows the NTC connected between TS-CTRL and ground. This more or less agress with the pin description of TS-CTRL. But in…
Other Parts Discussed in Thread: BQ500212A , BQ51003 , BQ51013B , BQ51050B , BQ51013BEVM-764 , BQ500212AEVM-550 I am looking to created a slip ring like device using the BQ series parts but with smaller diameter inductors. I understand that changing the…
Hi Sir
slyt479 describe k value.
In the formula, L12 will effect k value.
"L12 is the mutual inductance of coils 1 and 2."
My question is how to measure L12 inductance value.
Does it measure Rx coil or Tx coil?
Part Number: BQ51013B Hi, I work with the BQ51013B and I try to design it. I saw in the datasheet (p.32) there an interface between RECT and OUT with capacitors that prevent mirror current. However, I saw on the design of eval kit, there is a resistor…
