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参数资料
| 型号： | TPS2201IDBLE |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO30 |
| 封装： | SSOP-30 |
| 文件页数： | 13/25页 |
| 文件大小： | 537K |
| 代理商： | TPS2201IDBLE |
TPS2201
DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES
FOR PARALLEL PCMCIA CONTROLLERS
SLVS094C – AUGUST 1994 – REVISED JANUARY 2001
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
logic input and outputs (continued)
A_Vpp _PGM
A_Vpp_VCC
A_VCC_3
A_VCC_5
B_Vpp _PGM
B_Vpp_VCC
B_VCC_3
B_VCC_5
Cirrus Logic
CL-PD6720
To CPU
GND
A_VPP_PGM
A_VPP_VCC
A_VCC3
A_VCC5
B_VPP_PGM
B_VPP_VCC
B_VCC3
B_VCC5
APWR_GOOD
TPS2201
Vpp _Valid
OC
BPWR_GOOD
Figure 24. Logic Connections to CL-PD6720
Intel’s 82365SLDF controller uses active-high control logic for VCC selection, which requires connecting the 3-V
control outputs (A_VCC_EN0, B_VCCEN0) of the 82365SLDF to the 5-V control inputs (A_VCC5, B_VCC5)
of the TPS2201 and the 5-V control outputs (AVCC_EN1, B_VCC_EN1) to the 3-V control inputs (A_VCC3,
B_VCC3), as illustrated in Figure 25. Examination of the control logic tables on page 16 will confirm that these
connections will in fact select the correct output voltage. An alternative approach would be to invert the Intel VCC
control logic signals before routing them to the TPS2201.
The separate Vpp power-good indicators of the TPS2201 can be connected directly to the Intel controller as
shown in Figure 25.
Cirrus Logic defines a (1, 1) on the VCC select lines to be the PC Card no connect state; Intel chose (0, 0) to
select this state. As the tables show, either combination switches the VCC outputs to 0 V. The decision to provide
0 V versus a high impedance for the no connect state eliminates potential charging at the switch-to-card
interface. Feedback from the PC Card design community favors this approach.
Vpp logic allows for 0-V or high-impedance output for no connect (0, 0) or reserved (1, 1) logic inputs,
respectively (refer to AVPP and BVPP control-logic tables on page 16). Both the Cirrus Logic and Intel
controllers interface directly with the Vpp control inputs of the TPS2201.
The shutdown input of the TPS2201, SHDN, when held at a logic low places all VCC and Vpp outputs in a
high-impedance state and reduces chip quiescent current to 1
A to conserve battery power.
An overcurrent output (OC) is provided to indicate an overcurrent condition in any of the VCC or Vpp supplies
(see discussion above).
ESD protection
All TPS2201 inputs and outputs incorporate ESD-protection circuitry designed to withstand a 2-kV
human-body-model discharge as defined in MIL-STD-883C. The VCC and Vpp outputs can be exposed to
potentially higher discharges from the external environment through the PC card connector. Bypassing the
outputs with 0.1-
F capacitors protects the devices from discharges up to 10 kV.
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相关代理商/技术参数 |
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|---|---|
| TPS2201IDBR | 功能描述:热插拔功率分布 1A Dual-Slot PC Card Power Switch 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 |
| TPS2201IDBRG4 | 功能描述:热插拔功率分布 1A Dual-Slot PC Card Power Switch 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 |
| TPS2201IDFLE | 制造商:Texas Instruments 功能描述:PCMCIA SWITCHING CIRCUIT, 30 Pin, Plastic, SOP |
| TPS2201IDFR | 功能描述:热插拔功率分布 1A Dual-Slot PC Card Power Switch 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 |
| TPS2202AIDB | 功能描述:热插拔功率分布 1A Dual-Slot PC Card Pwr Sw 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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