Datasheet

TUSB1210
SLLSE09F –NOVEMBER 2009–REVISED AUGUST 2012 www.ti.com
Table 6-15. Pullup/Pulldown Resistors
PARAMETER COMMENTS MIN TYP MAX UNIT
Bus pullup resistor on upstream port Bus idle 0.9 1.1 1.575 kΩ
RPUI
(idle bus)
Bus pullup resistor on upstream port Bus driven/driver's outputs unloaded 1.425 2.2 3.09
RPUA
(receiving)
High (floating) Pullups/pulldowns on both DP and 2.7 3.6 V
VIHZ
DM lines
VPH_DP_UP Phone D+ pullup voltage Driver's outputs unloaded 3 3.3 3.6 V
Pulldown resistors
RPH_DP_DWN Phone D+/– pulldown Driver's outputs unloaded 14.25 18 24.8 kΩ
RPH_DM_DWN
High (floating) Pullups/pulldowns on both DP and 2.7 3.6 V
VIHZ
DM lines
D+/– Data line
CINUB Upstream facing port [1.0] 22 75 pF
VOTG_DATA_LK On-the-go device leakage
[2] 0.342 V
G
Input impedance exclusive of Driver's outputs unloaded 300 kΩ
ZINP
pullup/pulldown
6.3.4 OTG Electrical Characteristics
The on-the-go (OTG) block integrates three main functions:
• The USB plug detection function on V
BUS
and ID
• The ID resistor detection
• The V
BUS
level detection
Table 6-16. OTG V
BUS
Electrical
PARAMETER COMMENTS MIN TYP MAX UNIT
V
BUS
Comparators
VA_SESS_VLD A-device session valid 0.8 1.4 2.0 V
VA_VBUS_VLD A-device V
BUS
valid 4.4 4.5 4.625 V
VB_SESS_END B-device session end 0.2 0.5 0.8 V
VB_SESS_VLD B-device session valid 2.1 2.4 2.7 V
V
BUS
Line
RA_BUS_IN A-device V
BUS
input impedance to SRP (V
BUS
pulsing) capable A-device not
40 70 100 kΩ
ground driving V
BUS
RB_SRP_DWN B-device V
BUS
SRP pulldown 5.25 V / 8 mA, Pullup voltage = 3 V 0.656 10 kΩ
RB_SRP_UP B-device V
BUS
SRP pullup (5.25 V – 3 V) / 8 mA, Pullup voltage = 3 V 0.281 1 2 kΩ
t
RISE_SRP_UP_MAX
B-device V
BUS
SRP rise time
0 to 2.1 V with < 13 μF load TBD ms
maximum for OTG-A communication
t
RISE_SRP_UP_MIN
B-device V
BUS
SRP rise time 0.8 to 2.0 V with > 97 μF load
minimum for standard host TBD ms
connection
24 USB Connectivity Copyright © 2009–2012, Texas Instruments Incorporated
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