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參數(shù)資料
| 型號： | LTC4245CG#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 28/36頁 |
| 文件大?。?/td> | 431K |
| 描述： | IC CNTRLR HOT SWAP 36-SSOP |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類型： | 熱交換控制器 |
| 應(yīng)用： | CompactPCI? |
| 內(nèi)部開關(guān)： | 無 |
| 電源電壓： | 3.3V，5V，12V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 36-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 36-SSOP |
| 包裝： | 帶卷 (TR) |
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LTC4245
28
4245fa
drop and temperature rise to a minimum, the suggested
trace width in these applications for 1oz copper foil is
0.03 for each ampere of DC current.
In the majority of applications, it will be necessary to use
plated-through vias to make circuit connections from
component layers to power and ground layers internal
to the PCB. For 1oz copper foil plating, a general rule is
1A of DC current per via, making sure the via is properly
dimensioned so that solder completely lls any void. For
other plating thicknesses, check with your PCB fabrica-
tion facility.
It is also important to put C1, the bypass capacitor for the
INTV
CC
pin as close as possible between INTV
CC
and GND.
The surge suppressors, Z1 and Z2, are placed between the
supply inputs and ground using wide traces.
PCB Layout Considerations
For proper operation of the LTC4245s circuit breaker,
Kelvin connection to the sense resistors is strongly
recommended. The PCB layout should be balanced and
symmetrical to minimize wiring errors. In addition, the
PCB layout for the sense resistors and the power MOSFETs
should include good thermal management techniques for
optimal device power dissipation. A recommended PCB
layout for the 5V sense resistor and the power MOSFET
around the LTC4245 is illustrated in Figure 18. In Hot Swap
applications where load currents can be 10A, narrow PCB
tracks exhibit more resistance than wider tracks and operate
at more elevated temperatures. Since the sheet resistance
of 1 ounce copper foil is approximately 0.5m?o, track
resistances and voltage drops add up quickly in high current
applications. Thus, to keep PCB track resistance, voltage
APPLICATIO S I FOR ATIO
U
U
U
Figure 18. Recommended Layout for R2, Q2, R6, Z2, C1, Z1, R10 and C2
2
3
4
5
6
7
8
9
LTC4245G*
CURRENT FLOW
TO SOURCE
*ADDITIONAL DETAILS OMITTED FOR CLARITY
DRAWING IS NOT TO SCALE!
4245 F18
TRACK WIDTH W:
0.03" PER AMPERE
ON 1 OZ Cu FOIL
D
D
D
D
G
S
S
S
CURRENT FLOW
TO LOAD
CURRENT FLOW
TO LOAD
R2 SENSE
RESISTOR
Q2
SO-8
VIA TO
GND PLANE
VIA TO
GND PLANE
GND
GND
5V
OUT
5V
IN
R10
C2
R6
W
W
W
Z2
Z1
C1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4245CUHF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Multiple Supply Hot Swap Controller with I2C Compatible Monitoring |
| LTC4245CUHF#PBF | 功能描述:IC CNTRLR HOT SWAP 38-QFN 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) |
| LTC4245CUHF#TRPBF | 功能描述:IC CNTRLR HOT SWAP 38-QFN 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) |
| LTC4245IG | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Multiple Supply Hot Swap Controller with I2C Compatible Monitoring |
| LTC4245IG#PBF | 功能描述:IC CNTRLR HOT SWAP 36-SSOP 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) |
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