參數(shù)資料
型號: TPS2070
廠商: Texas Instruments, Inc.
英文描述: "Pwr Controller for Bus/Self Pwrd Hub w/ 5V LDO Control
中文描述: 具有 5V LDO 控制、3.3V LDO、8 個電源開關(guān)、工作態(tài)低電平 BPMode Ind,用于總線/自供電集線器的功率控制器
文件頁數(shù): 26/29頁
文件大?。?/td> 472K
代理商: TPS2070
TPS2070, TPS2071
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS287A
SEPTEMBER 2000
REVISED FEBRUARY 2001
26
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
68
μ
F
D+
D
GND
5 V
0.1
μ
F
DP0
DM0
EECLK
EEDATA
EXTMEM
SUSPEND
C
D
A
B
SN75240
BUSPWR
RESET
VCC1_3.3
VCC2_3.3
0.1
μ
F
10
μ
F
XTAL1
XTAL2
33 pF
6 MHz
33 pF
1.5 k
TSTPLL
TSTMODE
GND
GND
PWRON1
OVRCUR1
PWRON2
OVRCUR2
PWRON3
OVRCUR3
PWRON4
OVRCUR4
EN1
OC1
EN2
OC2
EN3
OC3
EN4
OC4
3.3 V
SP
SP
GATE
4.7
μ
F
0.1
μ
F
6 V to 9 V
Supply
IRLZ24N
0.1
μ
F
68
μ
F
VEXT
PG
BPMODE
DP0_RST
BP
1.5 k
EN_REG
DGND
AGND
0.1
μ
F
0.01
μ
F
33
μ
F
PG_DLY
CP_M
CP_P
BP_DIS
VCP
D+
D
GND
5 V
D+
D
GND
5 V
C
D
A
B
SN75240
D+
D
GND
5 V
D+
D
GND
5 V
C
D
A
B
SN75240
33
μ
F
33
μ
F
33
μ
F
OUT4
OUT3
OUT2
OUT1
TPS2071
TUSB2046B
DM4
DP4
DM3
DP3
DM2
DP2
DM1
DP1
Downstream
Ports
0.1
μ
F
Upstream
Ports
0.1
μ
F
This hybrid hub can also be implemented by connecting a 5-V power supply to the SP input of the TPS2071 and eliminating the external FET.
However, this type of implementation is best suited for the TPS2074/75 (refer to the TPS2074, TPS2075 data sheet for details).
Figure 38. USB Hybrid Hub Using TPS2071 Power Controller and TUSB2046 Hub Controller
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