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參數(shù)資料
| 型號： | TPS2211DB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | SINGLE-SLOT PC CARD POWER INTERFACE SWITCH FOR PARALLEL PCMCIA CONTROLLERS |
| 中文描述： | 單槽PC卡電源接口開關(guān)并聯(lián)的PCMCIA控制器 |
| 文件頁數(shù)： | 17/22頁 |
| 文件大?。?/td> | 357K |
| 代理商： | TPS2211DB |
TPS2211
SINGLE-SLOT PC CARD POWER INTERFACE SWITCH
FOR PARALLEL PCMCIA CONTROLLERS
SLVS156E
–
JULY 1997
–
REVISED JANUARY 2001
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
calculating junction temperature
The switch resistance, r
DS(on)
, is dependent on the junction temperature, T
J
, of the die and the current through
the switch. To calculate T
J
, first find r
DS(on)
from Figures 16 through 18 using an initial temperature estimate
about 50
°
C above ambient. Then calculate the power dissipation for each switch, using the formula:
P
D
r
DSon
I
2
Next, sum the power dissipation and calculate the junction temperature:
T
J
P
D
R
JA
T
A
, R
JA
108
°
C W
Compare the calculated junction temperature with the initial temperature estimate. If the temperatures are not
within a few degrees of each other, recalculate using the calculated temperature as the initial estimate.
ESD protection
All TPS2211 inputs and outputs incorporate ESD-protection circuitry designed to withstand a 2-kV human-body-
model discharge as defined in MIL-STD-883C, Method 3015. The AVCC and AVPP outputs can be exposed to
potentially higher discharges from the external environment through the PC Card connector. Bypassing the out-
puts with 0.1-
μ
F capacitors protects the devices from discharges up to 10 kV.
SHDN
VPPD0
VPPD1
VCCD0
VCCD1
OC
Internal
Current Monitor
GND
Thermal
CS
CS
S4
S5
S6
13
12
11
10
17
51
18
52
VCC1
VCC2
Vpp1
Vpp2
Card B
S1
S2
S3
3
4
5
6
9
16
15
14
1
2
8
7
CPU
Controller
3.3 V
3.3 V
5 V
5 V
12 V
TPS2211
See Note A
NOTE A: MOSFET switch S6 has a back-gate diode from the source to the drain. Unused switch inputs should never be grounded.
Figure 25. Internal Switching Matrix, TPS2211 Control Logic
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2211IDB | 功能描述:熱插拔功率分布 1A Sngl-Slot PC Card Power Switch RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2211IDBG4 | 功能描述:熱插拔功率分布 1A Sngl-Slot PC Card Power Switch RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2211IDBR | 功能描述:熱插拔功率分布 1A Sngl-Slot PC Card Power Switch RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2211IDBRG4 | 功能描述:熱插拔功率分布 1A Sngl-Slot PC Card Power Switch RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2212IDB | 功能描述:熱插拔功率分布 0.3A Sngl-Slot PC Card Power Switch RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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