- 您现在的位置：买卖IC网 > PDF目录68418 > TPS2010PWRG4 (TEXAS INSTRUMENTS INC) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 PDF资料下载
参数资料
| 型号： | TPS2010PWRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| 封装： | GREEN, TSSOP-14 |
| 文件页数： | 8/21页 |
| 文件大小： | 553K |
| 代理商： | TPS2010PWRG4 |
TPS2010, TPS2011, TPS2012, TPS2013
POWER-DISTRIBUTION
SLVS097A – DECEMBER 1994 – REVISED AUGUST 1995
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
power dissipation and junction temperature
The low on resistance of the N-channel MOSFET allows small surface-mount packages, such as SOIC or
TSSOP to pass large currents. The thermal resistances of these packages are high compared to that of power
packages; it is good design practice to check power dissipation and junction temperature. The first step is to
find ron at the input voltage and operating temperature. As an initial estimate, use the highest operating ambient
temperature of interest and read ron from Figure 23. Next calculate the power dissipation using:
P
D +
ron
I2
Finally, calculate the junction temperature:
T
J +
P
D
RqJA ) TA
Where:
TA = Ambient temperature
RθJA = Thermal resistance SOIC = 172°C/W, TSSOP = 179°C/W
Compare the calculated junction temperature with the initial estimate. If they do not agree within a few degrees,
repeat the calculation using the calculated value as the new estimate. Two or three iterations are generally
sufficient to get a reasonable answer.
thermal protection
Thermal protection is provided to prevent damage to the IC when heavy-overload or short-circuit faults are
present for extended periods of time. The faults force the TPS201x into its constant current mode, which causes
the voltage across the high-side switch to increase; under short-circuit conditions, the voltage across the switch
is equal to the input voltage. The increased dissipation causes the junction temperature to rise to dangerously
high levels. The protection circuit senses the junction temperature of the switch and shuts it off. The switch
remains off until the junction has dropped approximately 20
°C. The switch continues to cycle in this manner until
the load fault or input power is removed.
ESD protection
All TPS201x terminals incorporate ESD-protection circuitry designed to withstand a 6-kV human-body-model
discharge as defined in MIL-STD-883C. Additionally, the output is protected from discharges up to 12 kV.
相关PDF资料 |
PDF描述 |
|---|---|
| TPS2013DG4 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2011D | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS2010PWLE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| TPS2012PWLE | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| TPS2100DBVT | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS2011 | 制造商:TI 制造商全称:Texas Instruments 功能描述:POWER-DISTRIBUTION |
| TPS2011A | 制造商:TI 制造商全称:Texas Instruments 功能描述:POWER-DISTRIBUTION SWITCHES |
| TPS2011AD | 功能描述:电源开关 IC - 配电 1.2A 2.7-5.5V Single Hi-Side MOSFET RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| TPS2011AD | 制造商:Texas Instruments 功能描述:IC HIGH SIDE MOSFET PWR SW 5.5V 8-SOIC |
| TPS2011ADG4 | 功能描述:电源开关 IC - 配电 1.2A 2.7-5.5V Single Hi-Side MOSFET RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
发布紧急采购，3分钟左右您将得到回复。