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| 型号： | TPS2067D |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | GREEN, PLASTIC, MS-012AC, SOIC-16 |
| 文件页数： | 16/40页 |
| 文件大小： | 1325K |
| 代理商： | TPS2067D |
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SLVS490I – DECEMBER 2003 – REVISED OCTOBER 2009
Current Sense
A sense FET monitors the current supplied to the load. The sense FET measures current more efficiently than
conventional resistance methods. When an overload or short circuit is encountered, the current-sense circuitry
sends a control signal to the driver. The driver in turn reduces the gate voltage and drives the power FET into its
saturation region, which switches the output into a constant-current mode and holds the current constant while
varying the voltage on the load.
Thermal Sense
The TPS206x implements a thermal sensing to monitor the operating temperature of the power distribution
switch. In an overcurrent or short-circuit condition the junction temperature rises. When the die temperature rises
to approximately 140°C due to overcurrent conditions, the internal thermal sense circuitry turns off the switch,
thus preventing the device from damage. Hysteresis is built into the thermal sense, and after the device has
cooled approximately 10 degrees, the switch turns back on. The switch continues to cycle off and on until the
fault is removed. The open-drain false reporting output (OCx) is asserted (active low) when an overtemperature
shutdown or overcurrent occurs.
Undervoltage Lockout
A voltage sense circuit monitors the input voltage. When the input voltage is below approximately 2 V, a control
signal turns off the power switch.
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REVISION HISTORY
Changes from Original (December 2003) to Revision A
Page
Added devices to the data sheet- TPS2063, TPS2065, TPS2066, TPS2067 ...................................................................... 1
Added the General Switch Catalog ....................................................................................................................................... 1
Changes from Revision A (July 2004) to Revision B
Page
Changed Features Bullet From: UL Pending To: UL Listed - File No. E169910 .................................................................. 1
Changed Electrical Characteristics - CURRENT LIMIT information. .................................................................................... 4
Changes from Revision C (January 2006) to Revision D
Page
Changed ORDERING INFORMATION table ........................................................................................................................ 2
Changes from Revision D (Februaty 2007) to Revision E
Page
Changed General Switch Catalog information. ..................................................................................................................... 1
Changes from Revision E (September 2007) to Revision F
Page
Added the DBV-5 package. .................................................................................................................................................. 1
Added the DBV-5 package option. ....................................................................................................................................... 1
Added the DBV-5 package option to the Dissipation Ratings table. .................................................................................... 3
Changed Thermal Sense paragraph: From: Once the die temperature rises to approximately 140°C To: Once the
die temperature rises above a minimum of 135°C ............................................................................................................. 17
Copyright 2003–2009, Texas Instruments Incorporated
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| TPS2067DG4 | 功能描述:电源开关 IC - USB Triple 1A Current-Limited RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| TPS2067DR | 功能描述:电源开关 IC - USB Triple 1A Current-Limited RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| TPS2067DRG4 | 功能描述:电源开关 IC - USB Triple 1A Current-Limited RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| TPS2067EVM-294 | 功能描述:交换机 IC 开发工具 TPS2067 Eval module 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 |
| TPS2068 | 制造商:TI 制造商全称:Texas Instruments 功能描述:CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES |
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