- 您现在的位置：买卖IC网 > PDF目录150828 > TPS2552DRV-1 (TEXAS INSTRUMENTS INC) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 PDF资料下载
参数资料
| 型号： | TPS2552DRV-1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封装： | PLASTIC, SON-6 |
| 文件页数： | 7/32页 |
| 文件大小： | 2005K |
| 代理商： | TPS2552DRV-1 |
第1页第2页第3页第4页第5页第6页当前第7页第8页第9页第10页第11页第12页第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
APPLICATION 1: DESIGNING ABOVE A MINIMUM CURRENT LIMIT
1.016
ILIM
OSmin
25230V
OSmin
R
k
1
1.016
ILIM
OSmin
ILIM
I
(mA) = 1000mA
I
(mA) =
25230V
R
(k ) =
I
mA
R
(k ) = 24k
W
÷
÷
÷
÷
è
(2)
ILIM
OSmax
0.94
ILIM
OSmax
0.94
OSmax
R
(k ) = 23.7k
22980V
I
(mA) =
R
k
22980V
I
(mA) =
23.7
k
I
(mA) = 1172.4mA
W
(3)
APPLICATION 2: DESIGNING BELOW A MAXIMUM CURRENT LIMIT
0.94
ILIM
OSmax
22980V
OSmax
R
k
1
0.94
ILIM
OSmax
ILIM
I
(mA) = 500mA
I
(mA) =
22980V
R
(k ) =
I
mA
R
(k ) = 58.7k
W
÷
÷
÷
÷
è
(4)
ILIM
OSmin
1.016
ILIM
OSmin
1.016
OSmin
R
(k ) = 59k
25230V
I
(mA) =
R
k
25230V
I
(mA) =
59
k
I
(mA) = 400.6mA
W
(5)
www.ti.com...................................................................................................................................... SLVS841C – NOVEMBER 2008 – REVISED SEPTEMBER 2009
Some applications require that current limiting cannot occur below a certain threshold. For this example, assume
that 1 A must be delivered to the load so that the minimum desired current-limit threshold is 1000 mA. Use the
Select the closest 1% resistor less than the calculated value: RILIM = 23.7 k. This sets the minimum current-limit
threshold at 1 A . Use the IOS equations, Figure 24, and the previously calculated value for RILIM to calculate the
maximum resulting current-limit threshold.
The resulting maximum current-limit threshold is 1172.4 mA with a 23.7 k
resistor.
Some applications require that current limiting must occur below a certain threshold. For this example, assume
that the desired upper current-limit threshold must be below 500 mA to protect an up-stream power supply. Use
Select the closest 1% resistor greater than the calculated value: RILIM = 59 k. This sets the maximum
current-limit threshold at 500 mA . Use the IOS equations, Figure 24, and the previously calculated value for RILIM
to calculate the minimum resulting current-limit threshold.
The resulting minimum current-limit threshold is 400.6 mA with a 59 k
resistor.
Copyright 2008–2009, Texas Instruments Incorporated
15
相关PDF资料 |
PDF描述 |
|---|---|
| TPS61087DRCRG4 | 4.8 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10 |
| TC1303B-1F0EMFTR | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10 |
| TC1303B-1K2EUNTR | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10 |
| TC1303B-1M2EUNTR | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10 |
| TC1303B-1N1EMFTR | 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS2552DRV1EVM-364 | 功能描述:交换机 IC 开发工具 TPS2552DRV1EVM-364 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 |
| TPS2552DRVEVM-364 | 功能描述:交换机 IC 开发工具 TPS2552DRVEVM-364 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 |
| TPS2552DRVR | 功能描述:电源开关 IC - USB Adj 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 |
| TPS2552DRVR-1 | 功能描述:电源开关 IC - USB Adj 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 |
| TPS2552DRVT | 功能描述:电源开关 IC - USB Adj 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。