2

D

P

2

0.2

0.8W

=

´

=

(

)

j

T

60

0.8 70.3

116.24

=

+

´

=

1.8 V - 3.3 V (from System V

)

CC

To Processor

From Processor

Vbus

D+

D-

ID

Vbus

D+

D-

ID

ACK

EN

TPD4S014

USB

Transceiver

Battery

Charger

TPD4S014

SLVSAU0A

– MAY 2011 – REVISED JUNE 2011

www.ti.com

Example

At 2A continuous current power dissipation is given by:

If the ambient temperature is about 60oC the junction temperature will be:

This Implies that, at an ambient temperature of 60

° Celcuis that TPD4S014 can pass a continuous of 2A with no

problem. Conversely, the above calculation can also be used to calculate the total continuous current the

TPD4S014 can handle at any given temperature.

APPLICATION DIAGRAM

TYPICAL CHARACTERISTICS

Figure 1. IEC61000-4-2 -8kV Contact Waveform

Figure 2. IEC61000-4-2 +8kV Contact Waveform

6

Copyright

© 2011, Texas Instruments Incorporated