參數(shù)資料
型號(hào)： LTC4240IGN
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： CompactPCI Hot Swap Controller with I2C Compatible Interface
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28
封裝： 0.150 INCH, PLASTIC, SSOP28
文件頁數(shù)： 25/28頁
文件大小： 486K
代理商： LTC4240IGN
LTC4240
25
4240f
Disallowing bulk capacitors on the input power pins
mitigates the inrush current during hot plug. However, it
also tends to create a resonant circuit formed by the
inductance of the backplane power supply trace and the
parasitic capacitance of the plug-in board (mainly due to
the large power FET). Upon board insertion, the ringing of
this circuit will exhibit peak overshoot as high as 2.5 times
the steady state voltage (>30V for 12V).
There are two methods for abating the effects of these high
voltage transients: using zener clamps, and using snubber
APPLICATIU
W
U
U
Figure 17. Place Transient Protection Device Close to the LTC4240
C1
0.047
μ
F
C7
0.1
μ
F
0.1
μ
F
3V
IN
MEDIUM 3.3V
MEDIUM 5V
3V
SENSE
22
3V
OUT
24
5V
IN
21
5V
OUT
6
5V
SENSE
20
23
GATE
19
R3
10
R4
10
5V
AT 5A
3V
AT 7.6A
R5
1k
R1
0.005
Q1
Si7880DP
Q2
Si7880DP
R2
0.007
Z3
Z4
LTC4240*
GND
1644 F17
10
Z3, Z4: 1PMT5.0AT3
*ADDITIONAL DETAILS OMITTED FOR CLARITY
LONG 5V
LONG 3.3V
2.7
R23
2.7
R22, 2.74
R21, 1.74
Figure 15. 5V Supply Only Application Circuit
MEDIUM 5V
LONG
5V
C1
0.047
μ
F
GND
21
3V
OUT
6
LTC4240*
22
5V
OUT
24
23
20
GATE
19
10
4240 F15
R5
1k
R22
2.74
CompactPCI
BACKPLANE
CONNECTOR
(FEMALE)
CompactPCI
BACKPLANE
CONNECTOR
(MALE)
GND
5V
IN
5V
IN
D1
5V
SENSE
3V
IN
3V
SENSE
R4
10
5V
OUT
R2
0.007
Q2
Si7880DP
D2
D1, D2: BAV99
C
L(5VOUT)
Z4
*ADDITIONAL DETAILS OMITTED FOR CLARITY
Z4: 1PMT5.0AT3
GND
LTC4240*
10
1.2k
PUSHBUTTON
SWITICH
100
V(I/O)
1k
GND
OFF/ON
28
BD_SEL#
4240 F16
*ADDITIONAL DETAILS OMITTED FOR CLARITY
Figure 16. BD_SEL# Pushbutton Toggle Switch
CompactPCI
BACKPLANE
CONNECTOR
(FEMALE)
CompactPCI
BACKPLANE
CONNECTOR
(MALE)
networks. Snubbers are RC networks whose time
constants are large enough to damp the inductance of the
parasitic resonant circuit. The snubber capacitor should
be 10X to 100X the value of the plug-in board parasitic
capacitance. The value of the series snubber resistor
should be large enough to damp the resulting
R-L-C circuit and is typically between 1
and 50
. These
protection networks should be mounted very close to the
LTC4240 in order to minimize parasitic inductance. This is
shown in Figure 17 for the 3.3V and 5V supplies.
相關(guān)PDF資料
PDF描述
LTC4240CGN CompactPCI Hot Swap Controller with I2C Compatible Interface
LTC4244 Rugged, CompactPCI Bus Hot Swap Controllers
LTC4244CGN-1 Rugged, CompactPCI Bus Hot Swap Controllers
LTC4244IGN Rugged, CompactPCI Bus Hot Swap Controllers
LTC4244IGN-1 Rugged, CompactPCI Bus Hot Swap Controllers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4240IGN#PBF 功能描述:IC CTRLR HOTSWAP CPCI I2C 28SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4240IGN#TR 功能描述:IC CTRLR HOT SWAP CPCI 28-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4240IGN#TRPBF 功能描述:IC CTRLR HOTSWAP CPCI I2C 28SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4241 制造商:LINER 制造商全稱:Linear Technology 功能描述:PCI-Bus with 3.3V Auxiliary Hot Swap Controller
LTC4241CGN 功能描述:IC CTRLR HOTSWAP PCI 3.3V 20SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件
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