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参数资料
| 型号： | TPS2065DGNR-1 |
| 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： | PLASTIC, MSOP-8 |
| 文件页数： | 10/31页 |
| 文件大小： | 915K |
| 代理商： | TPS2065DGNR-1 |
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DP1
DM1
DP2
DM2
DP3
DM3
DP4
PWRON1
OVRCUR1
PWRON2
OVRCUR2
DM4
DP0
DM0
VCC
XTAL1
XTAL2
OCSOFF
SN75240
D+
D
5V
GND
D+
D
5V
D+
D
5V
D+
D
5V
48-MHz
Crystal
Downstream
Ports
TUSB2040
HubController
Tuning
Circuit
A
B
C
D
33 F
SN75240
A
B
C
D
GND
33 F
D+
D
Upstream
Port
TPS2041B
SN75240
A
B
5V
GND
C
D
1 F
IN
GND
FerriteBeads
BUSPWR
GANGED
TietoTPS2041EN Input
OC
EN
OUT
5-VPower
Supply
IN
GND
3.3V
4.7 F
0.1 F
4.7 F
EN1
IN
OC1
OUT1
TPS2062-1
EN2
OC2
OUT2
0.1 F
GND
Note:USBrev1.1requires120 mFperhub.
TPS76333
GENERIC HOT-PLUG APPLICATIONS
SLVS714A – FEBRUARY 2007 – REVISED MARCH 2009................................................................................................................................................ www.ti.com
Figure 27. Hybrid Self / Bus-Powered Hub Implementation
In many applications it may be necessary to remove modules or pc boards while the main unit is still operating.
These are considered hot-plug applications. Such implementations require the control of current surges seen by
the main power supply and the card being inserted. The most effective way to control these surges is to limit and
slowly ramp the current and voltage being applied to the card, similar to the way in which a power supply
normally turns on. Due to the controlled rise times and fall times of the TPS206x-1, these devices can be used to
provide a softer start-up to devices being hot-plugged into a powered system. The UVLO feature of the
TPS206x-1 also ensures that the switch is off after the card has been removed, and that the switch is off during
the next insertion. The UVLO feature insures a soft start with a controlled rise time for every insertion of the card
or module.
18
Copyright 2007–2009, Texas Instruments Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| TPS2066DGN-1G4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2062D-1 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2062DR-1G4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2066DGN-1 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2062D | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
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| TPS2065EVM-290 | 功能描述:交换机 IC 开发工具 TPS2065EVM-290 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:USB Power Switches 工具用于评估:MAX4984E 工作电源电压:2.8 V to 5.5 V |
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