- 您现在的位置：买卖IC网 > PDF目录69500 > TPS2068DGN (TEXAS INSTRUMENTS INC) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 PDF资料下载
参数资料
| 型号： | TPS2068DGN |
| 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, MSOP-8 |
| 文件页数： | 13/33页 |
| 文件大小： | 1022K |
| 代理商： | TPS2068DGN |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
SLVS553K
– MARCH 2005 – REVISED MAY 2011
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.
20
Copyright
2005–2011, Texas Instruments Incorporated
相关PDF资料 |
PDF描述 |
|---|---|
| TPS2060DGNG4 | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2064DGNRG4 | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2068DGNR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2062D-1G4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2065DGNR-1G4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS2068DGN | 制造商:Texas Instruments 功能描述:; Voltage Supply Source:Single; Interfac |
| TPS2068DGNG4 | 功能描述:电源开关 IC - USB Crnt-Ltd Pwr-Dist Sw 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 |
| TPS2068DGNR | 功能描述:电源开关 IC - USB Current-Ltd Pwr- Distr Switch 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 |
| TPS2068DGNRG4 | 功能描述:电源开关 IC - USB Crnt-Ltd Pwr-Dist Sw 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 |
| TPS2068DR | 功能描述:电源开关 IC - USB Crnt-Ltd Pwr-Dist Sw 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 |
发布紧急采购，3分钟左右您将得到回复。