參數(shù)資料
型號(hào)： TPS2341PHPR
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 4-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48
封裝： POWERPAD, HTQFP-48
文件頁(yè)數(shù)： 18/31頁(yè)
文件大?。?/td> 649K
代理商： TPS2341PHPR
TPS2341
SLUS513A MAY 2003 REVISED JULY 2004
25
www.ti.com
APPLICATION INFORMATION
Table 4. TPS2341 Continuous Maximum Load Power Consumption (All Drivers On)
SUPPLY DRIVER
RDS(on)
(
)
POWER PER SLOT
(W)
TOTAL POWER
(W)
+12 V @ 0.5 A
0.5
0.1
0.2
12 V @ 100 mA
0.9
0.01
0.02
+3VAux @ 375 mA
0.425
0.06
0.12
+12 V @ 3 mA
0.04
0.08
+5 V @1 mA
0.005
+3 V @ 0.5 mA
0.002
12 V @ 0.25 mA
0.003
0.006
3VSTBY @ 0.2 mA
0.001
DIGVCC @ 0.2 mA
0.001
Total Power Consumption
0.435
T
RISE + PTOTAL
q
JA +
(0.435 W)
29 deg C W
= 12.7
_C
T
J + TA ) TRISE + 50
O
C
) 12.7
= 62.7
_C
This example indicates that with the ambient air at 50
°C the TPS2341 junction temperature rises to 63°C which
is below the absolute maximum junction temperature of 85
°C and ensures the device operates properly and
within design specifications. The transient power consumption must also be considered for the conditions during
initial ramp-up of the output supplies, however, this varies significantly depending upon output load impedance
for each application and each supply.
Refer to Technical Briefs PowerPAD
tThermally Enhanced Package (TI Literature No. SLMA003) and
PowerPAD
t Made Easy (TI Literature No. SLMA004) for more information.
(1)
(2)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2342PFP 功能描述:熱插拔功率分布 Hot Plug Power Controller 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
TPS2342PFPG4 功能描述:熱插拔功率分布 Hot Plug Power Controller 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
TPS2342PFPR 功能描述:熱插拔功率分布 Hot Plug Power Controller 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
TPS2342PFPRG4 功能描述:熱插拔功率分布 Hot Plug Power Controller 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
TPS2343DDP 功能描述:熱插拔功率分布 Dual Slot PCI-X 2.0 Hot-Plug Pwr Cntrlr 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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