UCS1002-2 datasheet(112/114 Pages) MICROCHIP

112 / 114 page

Programmable USB Port Power Controller with Charger Emulation

Datasheet

Revision 1.4 (07-16-13)

112

SMSC UCS1002

DATASHEET

Table 3.3, "Electrical

Specifications"



IDET_QUAL changed from 200 µA to 400 µA.



IREM_QUAL_DET changed from 200 µA to 400 µA.



IREM_QUAL_ACT changed from 100 µA to 300 µA.



Updated selectable current limits (ILIMx) min and max values.

Typical values did not change.



Changed IACTIVE from 500 µA (TYP) to 650 µA (TYP).



Changed IACTIVE from TBD µA (MAX) to 750 µA (MAX).



Changed ISLEEP from TBD µA (MAX) to 8 µA (MAX).



Table 5.1, "Power States

Control Settings"



“Behavior” cell in the "Sleep" row: Clarified behavior by

adding "VBUS will be near ground potential”.

Section 5.1.2, "Sleep State

Operation"



Clarified behavior by adding "VBUS will be near ground

potential”.

Section 5.2.3, "Back-voltage

Detection" and Section

5.2.4, "Back-drive Current

Protection"



Section “Back-voltage / Back-drive Detection” split into two.



In Section 5.2.4, "Back-drive Current Protection", corrected

reference IBD_LK to match elec spec symbol IBD_1 and

rewrote back-drive description.

Section 7.2.4, "Current

Limiting Modes"



Added: The current limiting mode used depends on the Active

state mode (see Section 9.9, "Current Limit Mode

Associations").

Section 7.2.4.1, "Trip Mode"



Added application note: To avoid cycling in trip mode, set ILIM

higher than the highest expected portable device current

draw.

Table 9.2, "Current Limit

Mode Options"



Rearranged rows so DCE Cycle is grouped together.



Added row for DCE Cycle when a charger emulation profile is

being applied.

Section 9.8.2, "Emulation

Cycling"

and

Section 9.11.5, "Legacy 7

Charger Emulation Profile"



Legacy 7 charger emulation profile defined and enabled by

default.

Chapter 12, Typical

Operating Curves



Rearranged order of TOCs.



Added new TOCs:

— Figure 12.3, "Short Applied After Power Up"

— Figure 12.5, "Internal Power Switch Short Response"

— Figure 12.16, "Trip Current Limit Operation vs. Temp."

— Figure 12.17, "IBUS Measurement Accuracy"

— Figure 12.18, "Active State Current vs. Temp"

— Figure 12.19, "Detect State Current vs. Temp"

— Figure 12.20, "Sleep State Current vs. Temp"



Updated the following:

— Figure 12.6, "VBUS Discharge Behavior"

— Figure 12.11, "RDCP_RES Resistance vs.Temp"

— Figure 12.13, "VS Over-Voltage Threshold vs. Temp"

— Figure 12.14, "VS Under Voltage Threshold vs. Temp"

— Figure 12.15, "Detect State VBUS vs. IBUS"

Revision 1.1

(11-21-11)

Table 3.2, "Power

Dissipation Summary"



Missing units added.

Table 13.1 Customer Revision History (continued)

REVISION

LEVEL & DATE

SECTION/FIGURE/ENTRY

CORRECTION

UCS1002-2 датащи(PDF) 112 Page - Microchip Technology

UCS1002-2 датащи(HTML) 112 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

датащи скачать

ссылки URL