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TUSB4041IPAPRG4 数据表(PDF) 30 Page - Texas Instruments

部件名 TUSB4041IPAPRG4
功能描述  TUSB4041I Four-Port USB 2.0 Hub
PDF  48 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TUSB4041IPAPRG4 数据表(HTML) 30 Page - Texas Instruments

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VBUS
USB_DP_UP
USB_DM_UP
R5
1 M
TUSB4041I_PAP
U1A
USB_VBUS
16
USB_DP_UP
21
USB_DM_UP
22
FULLPWRMGMTZ/SMBA1
8
GANGED/SMBA2/HS_UP
10
C3
0.001 µF
R2
10 K
1%
0402
1%
R3
4.7 K
R4
4.7 K
C2
0.1 µF
C1
10 µF
+5V
DM
DP
GND
J1
Type B USB-Shield
3
1
2
4
5
6
R1
90.9 K
0402
1%
Copyright © 2016, Texas Instruments Incorporated
30
TUSB4041I
SLLSEK3E – JULY 2015 – REVISED SEPTEMBER 2017
www.ti.com
Product Folder Links: TUSB4041I
Submit Documentation Feedback
Copyright © 2015–2017, Texas Instruments Incorporated
Typical Application (continued)
9.2.1 Design Requirements
For this design example, use the parameters listed in Table 26.
Table 26. Design Parameters
DESIGN PARAMETER
EXAMPLE VALUE
VDD supply
1.1 V
VDD33 supply
3.3 V
Upstream port USB support (HS, FS)
HS, FS
Downstream port 1 USB support (HS, FS, LS)
HS, FS, LS
Downstream port 2 USB support (HS, FS, LS)
HS, FS, LS
Downstream port 3 USB support (HS, FS, LS)
HS, FS, LS
Downstream port 4 USB support (HS, FS, LS)
HS, FS, LS
Number of removable downstream ports
4
Number of non-removable downstream ports
0
Full power management of downstream ports
Yes (FULLPWRMGMTZ = 0)
Individual control of downstream port power switch
Yes (GANGED = 0)
Power switch enable polarity
Active high (PWRCTL_POL = 1)
Battery charge support for downstream port 1
Yes
Battery charge support for downstream port 2
Yes
Battery charge support for downstream port 3
Yes
Battery charge support for downstream port 4
Yes
I2C EEPROM support
No
24-MHz clock source
Crystal
9.2.2 Detailed Design Procedure
9.2.2.1 Upstream Port Implementation
Figure 26. Upstream Port Implementation
The upstream of the TUSB4041I device is connected to a USB2 Type B connector. This particular example has
GANGED pin and FULLPWRMGMTZ pin pulled low, which results in individual power support each downstream
port. The VBUS signal from the USB2 Type B connector is feed through a voltage divider. The purpose of the
voltage divider is to make sure the level meets USB_VBUS input requirements



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