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参数资料
| 型号： | LTC1646IGN#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 18/20页 |
| 文件大小： | 407K |
| 描述： | IC CNTRLR HOTSWAP PCIDUAL 16SSOP |
| 标准包装： | 100 |
| 类型： | 热交换控制器 |
| 应用： | CompactPCI? |
| 内部开关： | 无 |
| 电源电压： | 3.3V，5V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 管件 |
LTC1646
18
1646fa
Table 6. N-Channel Power MOSFET Selection Guide
CURRENT LEVEL (A)
PART NUMBER
DESCRIPTION
MANUFACTURER
0 to 2
MMDF3N02HD
Dual N-Channel SO-8
ON Semiconductor
R
DS(ON)
= 0.1&
2 to 5
MMSF5N02HD
Single N-Channel SO-8
ON Semiconductor
R
DS(ON)
= 0.025&
5 to 10
MTB50N06V
Single N-Channel DD Pak
ON Semiconductor
R
DS(ON)
= 0.028&
5 to 10
IRF7413
Single N-Channel SO-8
International Rectifier
R
DS(ON)
= 0.01&
5 to 10
Si4410DY
Single N-Channel SO-8
Vishay-Siliconix
R
DS(ON)
= 0.01&
Table 7. Sense Resistor Selection Guide
CURRENT LIMIT VALUE
PART NUMBER
DESCRIPTION
MANUFACTURER
1A
LR120601R055F
0.055&, 0.5W, 1% Resistor
IRC-TT
WSL1206R055
Vishay-Dale
2A
LR120601R028F
0.028&, 0.5W, 1% Resistor
IRC-TT
WSL1206R028
Vishay-Dale
5A
LR120601R011F
0.011&, 0.5W, 1% Resistor
IRC-TT
WSL2010R011
Vishay-Dale
7.6A
WSL2512R007
0.007&, 1W, 1% Resistor
Vishay-Dale
10A
WSL2512R005
0.005&, 1W, 1% Resistor
Vishay-Dale
PCB Layout Considerations
For proper operation of the LTC1646s circuit breaker
function, a 4-wire Kelvin connection to the sense resistors
is highly recommended. A recommended PCB layout for
the sense resistor, the power MOSFET, and the GATE drive
components around the LTC1646 is illustrated in
Figure 15. In Hot Swap applications where load currents
can reach 10A, narrow PCB tracks exhibit more resistance
than wider tracks and operate at more elevated tempera-
tures. Since the sheet resistance of 1 ounce copper foil is
approximately 0.5m&/?/SPAN>? track resistances add up quickly
in high current applications. Thus, to keep PCB track
resistance and temperature rise to a minimum, the sug-
gested trace width in these applications for 1 ounce
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 PC board. For 1 ounce copper foil plating, a general rule
is 1A of DC current per via, making sure the via is properly
dimensioned so that solder completely fills any void. For
other plating thicknesses, check with your PCB fabrication
facility.
Power MOSFET and Sense Resistor Selection
Table 6 lists some current MOSFET transistors that are
available and Table 7 lists some current sense resistors
that can be used with the LTC1646s circuit breakers.
Table 8 lists supplier web site addresses for discrete
component mentioned throughout the LTC1646 data sheet.
APPLICATIO S I FOR ATIO
U
U
U
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相关代理商/技术参数 |
参数描述 |
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| LTC1647-1CS8 | 功能描述:IC CONTROLLR HOTSWAP DUAL 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
| LTC1647-1CS8#PBF | 功能描述:IC CTLR HOTSWAP DUAL 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC1647-1CS8#TR | 功能描述:IC CONTROLLER HOTSWAP DUAL 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
| LTC1647-1CS8#TRPBF | 功能描述:IC CONTROLLR HOTSWAP DUAL 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
| LTC1647-1IS8 | 功能描述:IC CONTROLLER HOTSWAP DUAL 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
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