UCS1002-1 datasheet(116/116 Pages) MICROCHIP

116 / 116 page

Programmable USB Port Power Controller with Charger Emulation

Datasheet

Revision 1.4 (07-16-13)

116

SMSC UCS1002

DATASHEET

Revision 1.1

(11-21-11)

cont.

Section 9.4, "Data Pass-

through (No Charger

Emulation)"



Data Pass-through persists until M1, M2, or EM_EN controls

are changed. It is no longer affected by PWR_EN. Added

application note: When the M1, M2, and EM_EN controls are

set to ‘0’, ‘1’, ‘0’ or to ‘1’, ‘1’, ‘0’ respectively, Data Pass-

through mode will persist if the PWR_EN control is disabled;

however, the UCS1002 will draw more current. To leave Data

Pass-through mode, the PWR_EN control must be enabled

before the M1, M2, and EM_EN controls are changed to the

desired mode.

Section 9.6, "BC1.2 CDP"



BC1.2 CDP mode uses constant current limiting. Added

application note: BC1.2 compliance testing may require the

S0 control to be set to ‘0’ (Attach and Removal Detection

feature disabled) while testing is in progress.



Added application note: When the UCSX100X is in BC1.2

CDP mode and the Attach and Removal Detection feature is

enabled, if a power thief, such as a USB light or fan, attaches

but does not assert DP, a Removal event will not occur when

the portable device is removed. However, if a standard USB

device is subsequently attached, Removal Detection will

again be fully functional. As well, if PWR_EN is cycled or M1,

M2, and / or EM_EN change state, a Removal event will

occur and Attach Detection will be reactivated.

Section 9.7, "BC1.2 DCP"



Added application note: BC1.2 compliance testing may

require the S0 control to be set to ‘0’ (Attach and Removal

Detection feature disabled) while testing is in progress.

Table 9.2, "Current Limit

Mode Options"



BC1.2 CDP charger emulation changed from using “trip” to

“CC mode if ILIM < 1.5 A, otherwise, trip mode”.

Section 9.11.4, "Legacy 5

Charger Emulation Profile"



Added. The Legacy 5 charger emulation profile no longer

applies a voltage divider. It applies 900 mV to DPOUT and

DMOUT.

Revision 1.0

(08-18-11)

Initial Release

Table 14.1 Customer Revision History (continued)

REVISION

LEVEL & DATE

SECTION/FIGURE/ENTRY

CORRECTION

UCS1002-1 Datasheet(PDF) 116 Page - Microchip Technology

UCS1002-1 Datasheet(HTML) 116 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL