参数资料
型号: TPS2051BDR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封装: GREEN, PLASTIC, MS-012AA, SOIC-8
文件页数: 18/51页
文件大小: 1451K
代理商: TPS2051BDR
DP1
DM1
DP2
DM2
DP3
DM3
PWRON1
OVRCUR1
PWRON2
OVRCUR2
PWRON3
OVRCUR3
DP0
DM0
VCC
XTAL1
XTAL2
OCSOFF
SN75240
D +
D
5 V
GND
D +
D
5 V
D +
D
5 V
48-MHz
Crystal
Downstream
Ports
TUSB2040
Hub Controller
Tuning
Circuit
A
B
C
D
47
F
1/2 SN75240
A
B
C
D
GND
47
F
47
F
D +
D
Upstream
Port
TPS2041B
1/2 SN75240
A
B
5 V
GND
C
D
1
F
IN
GND
Ferrite Beads
BUSPWR
GANGED
Tie to TPS2041B EN Input
OC
EN
OUT
5-V Power
Supply
IN
GND
3.3 V
4.7
F
0.1
F
4.7
F
EN1
IN1
OC1
OUT1
TPS2053B
EN2
OC2
OUT2
0.1
F
0.1
F
GND
USB rev 1.1 requires 120
F per hub.
OUT3
EN3
OC3
IN2
GND
TPS76333
www.ti.com
SLVS514K – JUNE 2010 – REVISED DECEMBER 2008
Figure 35. Hybrid Self / Bus-Powered Hub Implementation, TPS2043B/TPS2053B
Copyright 2010–2008, Texas Instruments Incorporated
25
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