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TUSB321AI 数据表(PDF) 6 Page - Texas Instruments

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部件名 TUSB321AI
功能描述  USB Type-C Configuration Channel Logic and Port Control
PDF  21 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TUSB321AI 数据表(HTML) 6 Page - Texas Instruments

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0 V
VBUS_THR
VVBUS
Time
tVBUS_DB
TUSB321AI
SLLSER2 – OCTOBER 2015
www.ti.com
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
TEST
PARAMETER
MIN
TYP
MAX
UNIT
CONDITIONS
External pullup resistor on open drain IOs
RP(ODext)
200
k
Ω
(VCONN_FAULT, ID, OUT1, OUT2, DIR)
RP(TLext)
Tri-level input external pull-up resistor (PORT)
4.7
k
Ω
External pull-up resistor on CURRENT_MODE pin to
RP(cm_med)
500
k
Ω
advertise 1.5-A current
External pull-up resistor on CURRENT_MODE pin to
RP(cm_high)
10
k
Ω
advertise 3.0-A current
VBUS_DET IO Pins (Connected to System VBUS signal through external resistor)
VBUS(THR)
VBUS threshold range
2.95
3.30
3.80
V
R(VBUS)
External resistor between VBUS and VBUS_DET pin
891
900
909
K
Ω
R(VBUS_PD)
Internal pulldown resistance for VBUS_DET
95
K
Ω
VCONN
RON
On resistance of the VCONN power FET
1.25
Ω
V(TOL)
Voltage tolerance on VCONN power FET
5.5
V
V(PASS)
Voltage to pass through VCONN power FET
5.5
V
VCONN current limit; VCONN is disconnected above this
I(VCONN)
225
300
375
mA
value
CBULK
Bulk capacitance on VCONN; placed on VDD supply
10
200
µF
6.6 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
MIN
TYP
MAX
UNIT
tCCCB_DEFAULT
Power on default of CC1 and CC2 voltage debounce time
168
ms
tVBUS_DB
Debounce of VBUS_DET pin after valid V(BUS_THR) (See Figure 1.)
2
ms
tDRP_DUTY_CYCLE
Power-on default of percentage of time DRP advertises DFP during a TDRP
30%
The period TUSB321AI in DRP mode completes a DFP to UFP and back
tDRP
50
75
100
ms
advertisement.
Figure 1. VBUS Detect and Debounce
6
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Copyright © 2015, Texas Instruments Incorporated
Product Folder Links: TUSB321AI



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