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参数资料
| 型号： | TPS2311IPW |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20 |
| 封装： | PLASTIC, TSSOP-20 |
| 文件页数： | 7/24页 |
| 文件大小： | 644K |
| 代理商： | TPS2311IPW |
www.ti.com
APPLICATION INFORMATION
TYPICAL APPLICATION DIAGRAM
VREG
0.1
F
IN1 ISET1
RISET1
ISENSE1
RSENSE1
GATE1 DISCH1 VSENSE1
RVSENSE1_TOP
RVSENSE1_BOTTOM
+
FAULT
VO1 or
VO2
FAULT
TIMER IN2 ISET2 ISENSE2 GATE2 DISCH2 VSENSE2
ENABLE
DGND
AGND
RISET2
RVSENSE2_TOP
RVSENSE2_BOTTOM
+
VO1
VO2
ENABLE
1
F 10 F
RSENSE2
1
F 10 F
3 V
12 V IN1
3 V
5 V IN2
TPS2311
System
Board
PWRGD1
PWRGD2
PWRGD1
PWRGD2
INPUT CAPACITOR
OUTPUT CAPACITOR
EXTERNAL FET
SLVS275G – FEBRUARY 2000 – REVISED NOVEMBER 2006
This diagram shows a typical dual hot-swap application. The pullup resistors at PG1, PG2 and FAULT should be
relatively large (e.g. 100 k
) to reduce power loss unless they are required to drive a large load.
Figure 27. Typical Dual Hot-Swap Application
A 0.1-
F ceramic capacitor in parallel with a 1-F ceramic capacitor should be placed on the input power
terminals near the connector on the hot-plug board to help stabilize the voltage rails on the cards. The
TPS2310/11 does not need to be mounted near the connector or these input capacitors. For applications with
more severe power environments, a 2.2-
F or higher ceramic capacitor is recommended near the input
terminals of the hot-plug board. A bypass capacitor for IN1 and for IN2 should be placed close to the device.
A 0.1-
F ceramic capacitor is recommended per load on the TPS2311; these capacitors should be placed close
to the external FETs and to TPS2310/11. A larger bulk capacitor is also recommended on the load. The value of
the bulk capacitor should be selected based on the power requirements and the transients generated by the
application.
To deliver power from the input sources to the loads, each channel needs an external N-channel MOSFET. A
few widely used MOSFETs are shown in Table 2. But many other MOSFETs in the market can also be used
with TPS23xx in hot-swap systems.
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS2311IPWG4 | 功能描述:热插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2311IPWR | 功能描述:热插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2311IPWRG4 | 功能描述:热插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2320ID | 功能描述:热插拔功率分布 3-13V Dual w/Ind Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2320IDG4 | 功能描述:热插拔功率分布 3-13V Dual w/Ind Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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