Hello Manognya,
What's the value of the resistor?
Does the IC charge if you set EN_PRECHG=0 and EN_TERM=0?
We also have an app note on using the BQ25856-Q1 with super capacitors. The BQ25750 has the same registers as the BQ25856-Q1: www.ti.com/…
Part Number: BQ25858-Q1 Other Parts Discussed in Thread: BQ25856-Q1 Tool/software: Hi,
I am using the IC for the development of a battery charger. But I can't find its CAD symbol, footprint or 3D model.
I need these files to include the IC in Altium…
Part Number: BQ25856-Q1 Other Parts Discussed in Thread: BQ25758 Tool/software: I have two applications: one for battery charging and the other for a DC-DC converter. To reduce the BOM, I am considering using the same IC for both applications. My DC-DC…
Hi Vraj,
The BQ25856-Q1 might be what you are looking for. The device is a bidirectional battery charger. This only has trickle charge and pre-charge in one direction though. In the reverse direction, it only has CC and CV, so some additional battery…
Part Number: BQ25173-Q1 Other Parts Discussed in Thread: BQ25856-Q1 , BQ24640 , TPS551892-Q1 Tool/software: I am using BQ25173QWDRCRQ1, but it has 800mA max charging current, do you have any others which can support higher charging current for supercaps…
Hello John,
Yes, the BQ25856-Q1 will have the same issues as the BQ25756 regarding the minimum VBAT voltage in reverse mode. The BQ25856-Q1 does have Auto Reverse Mode though and this makes the BQ25856-Q1 work faster in a super capacitor backup system…
Hello K,
Thanks for being patient with this question.
For normal battery charging, yes, this is would work. To limit the input current, is the host processor going to program the input current limit into each IC individually?
Maybe the host processor…
Hi,
? ? said: Can I refer to the datasheet of BQ25856 - Q1?
The datasheet is here:
BQ25856-Q1: Automotive, Standalone/I2C Controlled, 1- to 14-Cell Bidirectional Buck-Boost Battery Charge Controller datasheet (Rev. A)
The auto reverse section…
Hello Andy,
Thanks for working on this.
1. No, you do not need to program the EN_REV bit if you are not using reverse mode.
2. The device will not go into reverse mode without an I2C command.
3. The /CE pin being HIGH will not prevent reverse…
Part Number: BQ25750 Other Parts Discussed in Thread: BQ25751 , BQ25856-Q1 , BQ25756 , Tool/software: Hi Sir,
may we know about the BQ25750 can support LiFePO4 battery?
but BQ25751 does not support LiFePO4 battery, right?
so the series of BQ2575x…
