參數(shù)資料
型號: TPS2051BQDRQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝: GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁數(shù): 11/31頁
文件大?。?/td> 695K
代理商: TPS2051BQDRQ1
DP1
DM1
DP2
DM2
DP3
DM3
DP4
PWRON1
OVRCUR1
PWRON2
OVRCUR2
PWRON3
OVRCUR3
PWRON4
OVRCUR4
DM4
DP0
DM0
VCC
XTAL1
XTAL2
OCSOFF
SN75240
D +
D -
5 V
GND
D +
D -
5 V
D +
D -
5 V
D +
D -
5 V
48-MHz
Crystal
Downstream
Ports
TUSB2046
Hub Controller
Tuning
Circuit
A
B
C
D
33 F
(see Note A)
SN75240
A
B
C
D
GND
D +
D -
Upstream
Port
TPS2051B
SN75240
A
B
5 V
GND
C
D
1 F
IN
GND
Ferrite Beads
BUSPWR
GANGED
Tie to TPS2051B EN Input
OC
EN
OUT
5-V Power
Supply
IN
GND
3.3 V
4.7 F
0.1 F
4.7 F
GND
EN
OC
IN
TPS2051B
OUT
EN
OC
IN
TPS2051B
OUT
EN
OC
IN
TPS2051B
OUT
EN
OC
IN
TPS2051B
OUT
TPS76333
0.1 F
33 F
(see Note A)
33 F
(see Note A)
33 F
(see Note A)
0.1 F
www.ti.com
SLVS782A – NOVEMBER 2007 – REVISED JUNE 2010
A.
USB rev 1.1 requires 120 mF per hub.
Figure 27. Hybrid Self-Powered/Bus-Powered Hub Implementation (TPS2051B)
Copyright 2007–2010, Texas Instruments Incorporated
19
Product Folder Link(s): TPS2041B-Q1 TPS2042B-Q1 TPS2051B-Q1
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