TPS25830A-Q1: Apple device charging question

Peter Xu

Part Number: TPS25830A-Q1
Other Parts Discussed in Thread: TPS25831-Q1

Hi team,

Customers want to know how large the current is when TPS25830A-Q1 cannot support DCP AUTO.

In my understanding, when apple device connect the charger with a type-C connector, the device cannot support Type-C protocol. So it can only use BC1.2 CDP, which is 5V/1.5A.

If they use TPS25831-Q1, it has DCP AUTO feature. So the device can charge with 5V/2.4A. Right?

Besides, if the apple device is IPHONE15PRO, which has full function type-c connector, it can charge with 5V/3A(type-C protocol), right?

Regards,

Peter

over 1 year ago

0 Seong Kim over 1 year ago

TI__Mastermind 46531 points

Hello Peter,

The max buck regulator output current for both the TPS25830A-Q1 and TPS25831-Q1 is 3.5A.

Yes, the TPS25831-Q1 has DCP AUTO and supports Apple's DCP Divider 3 mode (5V/2.4A).

According to Table 10-10 in the datasheet, the device supports both Type-C (3A) + DCP Auto Mode.

BR,

Seong

0 Peter Xu over 1 year ago in reply to Seong Kim

TI__Expert 6120 points

Hi Seong,

I just want to know what the real current is about no type-c iPhone charging by TPS25830A-Q1.

I think it is 5V/1.5A because iPhone seems not to support type-c charge.

Did you test it ever?

Regards,

Peter

0 Seong Kim over 1 year ago in reply to Peter Xu

TI__Mastermind 46531 points

Hello Peter,

The TPS25830A-Q1 cannot support 2.4A Divider3 mode for Type-A.

I have not personally performed bench testing to confirm this.

BR,

Seong

0 Peter Xu over 1 year ago in reply to Seong Kim

TI__Expert 6120 points

Hi Seong,

Can you test the current value in lab? My customer is asking this.

Regards,

Peter

0 Seong Kim over 1 year ago in reply to Peter Xu

TI__Mastermind 46531 points

Hey Peter,

With an iphone15?

BR,

Seong

0 Peter Xu over 1 year ago in reply to Seong Kim

TI__Expert 6120 points

Hi Seong,

Case1: iphone 14 or older version

Case2: iphone 15pro /iphone 15 promax

I think case1 should be 5V/1.5A and case2 should be 5V/3A.

Regards,

Peter

0 Peter Xu over 1 year ago in reply to Peter Xu

TI__Expert 6120 points

Hi Seong,

Sorry, case2 should be any iphone15 series device.

Regards,

Peter

+1 Seong Kim over 1 year ago in reply to Peter Xu

TI__Mastermind 46531 points

Peter,

Let's move this discussion to email.

I will be closing this thread. Please start a new one for any other inquiries.

BR,

Seong

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TPS25830A-Q1: Apple device charging question