UCS1002-1 Datasheet, PDF (15/116 Pages) SMSC Corporation – Programmable USB Port Power Controller with Charger Emulation

Programmable USB Port Power Controller with Charger Emulation
Datasheet
Chapter 3 Electrical Specifications
Table 3.1 Absolute Maximum Ratings
Voltage on VDD, VS, and VBUS pins
-0.3 to 6
V
Pullup voltage (V_PULLUP)
Data switch current (I_HSW__ON), switch on
Port power switch current
-0.3 to VDD + 0.3
±50
mA
Internally limited
Data switch pin voltage to ground (DPOUT, DPIN, DMOUT,
-0.3 to VDD + 0.3
V
DMIN); (VDD powered or unpowered)
Differential voltage across open data switch (DPOUT - DPIN,
VDD
V
DMOUT - DMIN, DPIN - DPOUT, DMIN - DMOUT)
Voltage on any other pin to ground
-0.3 to VDD + 0.3
V
Current on any other pin
±10
mA
Package power dissipation
See Table 3.2
Operating ambient temperature range
-40 to 125
°C
Storage temperature range
-55 to 150
°C
Note: Stresses above those listed could cause permanent damage to the UCS1002. This is a stress
rating only and functional operation of the UCS1002 at any other condition above those
indicated in the operation sections of this specification is not implied.
BOARD
PKG
High K
20-pin QFN
(see Note 3.1) 4 mm x 4 mm
Low K
20-pin QFN
(see Note 3.1) 4 mm x 4 mm
Table 3.2 Power Dissipation Summary
θ_JC
6 °C /
W
6 °C /
W
θ_JA
41 °C /
W
60 °C /
W
DERATING
FACTOR
ABOVE 25 °C
24.4 mW / °C
16.67 mW /
°C
TA <
25 °C
POWER
RATING
2193 mW
1498 mW
TA =
70 °C
POWER
RATING
1095 mW
748 mW
TA =
85 °C
POWER
RATING
729 mW
498 mW
Note 3.1
A High K board uses a thermal via design with the thermal landing soldered to the PCB
ground plane with 0.3 mm (12 mil) diameter vias in a 3x3 matrix (9 total) at 0.5 mm (20 mil)
pitch. The board is multi-layer with 1-ounce internal power and ground planes and 2-ounce
copper traces on top and bottom. A Low K board is a two layer board without thermal via
design with 2-ounce copper traces on the top and bottom.
SMSC UCS1002
15
DATASHEET
Revision 1.4 (07-16-13)