參數(shù)資料
型號： TPS2343DDPG3
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80
封裝： GREEN, PLASTIC, HTSSOP-80
文件頁數(shù)： 22/42頁
文件大?。?/td> 942K
代理商： TPS2343DDPG3
TPS2343
SLUS644B FEBRUARY 2005 MAY 2005
29
www.ti.com
APPLICATION INFORMATION
Power Stage Design
Adapter card current is a combination of static adapter card current consumption plus inrush current caused
by the supply voltage ramping into the adapter card decoupling capacitance. The TPS2343 implements current
limiting on each supply. For the 5-V, 3.3-V and VIO supplies, user-supplied 6-m
resistors sense current. For
the other supplies, current-sense resistors are integrated into the TPS2343. The current sense thresholds of
the 5-V, 3.3-V, 12-V, and 12-V supplies are programmed by one user-supplied resistor connected from MISET
to GROUND. The TPS2343 implements slew-rate control using on-chip current sources and user-supplied
capacitors. Each supply is controlled by the slew rate capacitor for that supply except for the 12-V supply, which
tracks the 12-V supply.
Using the recommended current-sense resistors, current-threshold resistor, and slew-rate control capacitors
implements a system with slew rates that meet PCI specifications and can deliver power to any adapter card
that meets PCI specifications. If a unique adapter card produces premature current limiting with the
recommended programming components, current-limit thresholds can be increased by increasing the value of
the resistor connected to MISET or inrush current can be reduced by raising the value of the appropriate
slew-rate control capacitors.
56
64
57
65
53
72
51
65
62
30
55
52
73
3VAUXI
M12VINA
P12VINA DIGVCC
V5IN
5VGA
5VSA
5VISA
3VSA
3VISA
P12VOA
M12VOA
3VAUXA
+5V In
+3.3V In
6 m
6 m
15
k
0.27
F
IRF7460
or
Si4410DY
IRF7460
or
Si4410DY
5 V
to Slot
3.3 V
to Slot
12 V
to Slot
12 V
to Slot
3.3V Aux
to Slot
Aux
+3.3V In
12V In
+12V In
50
61
80
71
54
P12VGA
3VAUXGA
0.022
F
0.022 F
TPS2342
ANAGND
PWRGND
11
6.04 k
MISET
76
3VGA
15
0.27
F
Figure 4. Typical TPS2343 Application Showing Power, Slew-Rate Control and Current-Limit
Programming Components (one slot shown)
相關(guān)PDF資料
PDF描述
TPS2343DDPR 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80
TPS2345PWNRND 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
TPS2346PWG4 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24
TPS2350DRG4 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14
TPS2350PWG4 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2343DDPR 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
TPS2343DDPRG3 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
TPS2345PW 功能描述:IC PWR MGR HOT SWAP 24-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件
TPS2345PWR 制造商:Rochester Electronics LLC 功能描述:COMPACTPCI HOT SWAP POWER MANAGER - Bulk
TPS2346PW 功能描述:IC HOT SWAP POWER MGR 24-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件
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