USB3803 datasheet(73/99 Pages) MICROCHIP

73 / 99 page

 2014-2015 Microchip Technology Inc.

DS00001691B-page 73

USB3803

The diagram in Figure 8-3 illustrates automatic Battery Charging detection when enhanced battery charger detection is

enabled. A USB Battery Charging 1.1 charger is discovered and the charger detection sequence continues in order to

differentiate between a Dedicated Charging Port and a Charging Downstream Port.

8.1.3

BATTERY CHARGER TIMING

Table 8-2 specifies timing parameters for the battery charging sequence.

FIGURE 8-3:

ENHANCED CHARGER DETECTION TIMING - BC1.1

TABLE 8-2:

BATTERY CHARGING TIMING PARAMETERS

Characteristic

Symbol

Min

Typ

Max

Units

Conditions

Charger Detection

Start Time delay

TCDSTART

Thubinit +

Thubconfig

See Table 4-2

Data Contact Detect

Time-out

TDCD_TOUT

199

200

204

HUB.ChgDet

stage on pll

RESET_N

IDP_SRC,

RPD_DM

ChargerType

ChrgDetComple

T_CdStart

T_DCD_TOUT

‘100’ or ‘101’

VDAT_SRC

(DP)

T_VDPSRC_ON

VDAT_SRC

(DM)

‘1’ if connected

to DCP

‘0’ if connected to

CDP

‘001’ if

connected to

DCP

‘010’ if connected

to CDP

USB3803 Datasheet(PDF) 73 Page - Microchip Technology

USB3803 Datasheet(HTML) 73 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

Datasheet Download

Link URL