D-

D+

GND

5 V

1.2 V

2.7V

2.7V

S1

S2

S3

S4

DP1

DM1

GND

Divider 2

S1, S2: ON

S3, S4: OFF

Short Mode

S4 ON

S1, S2, S3: OFF

1.2V on DP1 and DM1

S3, S4: ON

S1, S2: OFF

TPS2513A-Q1, TPS2514A-Q1

SLVSCC8A – MAY 2014 – REVISED DECEMBER 2014

www.ti.com

8.3.3 DCP Auto-Detect

TPS2513A-Q1 and TPS2514A-Q1 integrate an auto-detect feature to support Divider 3 mode, shorted mode and

1.2 V modes. If a divider device is attached, 2.7 V is applied to the DP pin and 2.7 V is applied to the DM pin. If a

BC1.2-compliant device is attached, the TPS251xA-Q1 automatically switches into shorted mode. If a device

compliant with the 1.2 V / 1.2 V charging scheme is attached, 1.2 V is applied on both the DP pin and the DM

pin. The functional diagram of DCP auto-detect feature (DM1 and DP1) is shown in Figure 6. DCP auto-detect

feature (DM2 and DP2) has the same functional configuration.

Figure 6. DCP Auto-Detect Functional Diagram

10

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