Looking for a powerbank chip that can use a single USB-C as in and output

Lexel · 2019-03-02T02:14:40.000Z

For future drivers I am looking for a simple chip solution that combines in and output on just one USB-C socket

basically a embedded solution with one chip architecture some caps and one inductor

Agro · 2019-03-02T07:21:27.000Z

Can’t help you with that but I love that you want to go this route.

X31 · 2019-03-02T14:14:43.000Z

Agro:

Can’t help you with that but I love that you want to go this route.

+1

mrheosuper · 2019-03-02T16:04:43.000Z

richtek.com

RT9485 - Easy to Use Power Bank Solution (EZPBS®) Integrated Chip with...

The RT9485 is a high integration and easy to use power solution for Li-ion ,power bank and other powered handheld applications. We call it EZPBSTM (Easy to ,Use Power Bank Solution). This single chip includes a Switching Charger with ,OTG function,...

this IC supports OTG usb, it may fits your need

Lexel · 2019-03-02T18:11:05.000Z

mrheosuper:

https://www.richtek.com/Products/Battery%20Management/Single%20Cell%20Li-Ion%20Battery%20Charger/RT9485?sc_lang=en
this IC supports OTG usb, it may fits your need

This chip has separate In and outputs so not useable für single port

OTG has nothing to do with the single input/output to charge and Power out
OTG simply means you can connect a smartphone and USB stick and they share data

BlueSwordM · 2019-03-02T18:16:36.000Z

Are you looking for a USB-C 3A controller or a USB-C PD controller?

Lexel · 2019-03-02T18:38:43.000Z

BlueSwordM:

Are you looking for a USB-C 3A controller or a USB-C PD controller?

normal USB-C with 3A
basically just a chip that connects to that connector for in and output, a few cpas and an inductor

BlueSwordM · 2019-03-02T18:51:23.000Z

A bit expensive, but will work well as a DRP port, as well as communicating over I2C:

Digi-Key Electronics

TUSB320IRWBR | Digi-Key Electronics

Order today, ships today. TUSB320IRWBR – USB Interface 12-X2QFN (1.6x1.6) from Texas Instruments. Pricing and Availability on millions of electronic components from Digi-Key Electronics.

Lexel · 2019-03-02T20:30:46.000Z

BlueSwordM:

A bit expensive, but will work well as a DRP port, as well as communicating over I2C:
https://www.digikey.com/product-detail/en/texas-instruments/TUSB320IRWBR/296-42175-1-ND/5308251

Its just a router, so this would not buck or boost the voltage charging or discharging battery to USB

itsonlyme · 2019-03-02T22:31:34.000Z

powerelectronictips.com

Single-Chip USB-C buck-boost battery chargers support bidirectional power -...

Intersil Corporation today introduced two new USB-C™ buck-boost battery chargers that support bidirectional power delivery in ultrabooks, tablets, power banks and other mobile products. The single-chip ISL9238 and ISL9238A battery chargers replace...

Est. reading time: 3 minutes

Lexel · 2019-03-02T23:07:27.000Z

itsonlyme:

Single-Chip USB-C buck-boost battery chargers support bidirectional power - Power Electronic Tips

this looks like it, but tzoo powerful and expensive

But I guess i found the word making further search easier bidirectional power

BlueSwordM · 2019-03-02T23:12:03.000Z

What you want to look for is a dual-role port, or DRP as I mentioned before.

Also, sorry for before. I thought you only needed a power passthrough port.

Agro · 2019-08-13T11:07:57.000Z

Hey Lexel, any news on that project?

Cereal_killer · 2019-11-27T10:39:09.000Z

Lexel any update?