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参数资料
| 型号： | LTC4360CSC8-2#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | LEAD FREE, PLASTIC, MO-203BA, SC-70, 8 PIN |
| 文件页数： | 3/14页 |
| 文件大小： | 1370K |
| 代理商： | LTC4360CSC8-2#TRPBF |
LTC4360-1/LTC4360-2
11
436012fa
APPLICATIONS INFORMATION
Figure 10. Recommended Layout for N-Channel MOSFET and P-/N-Channel MOSFET Configurations
LTC4360 to shut off the MOSFET before VOUT overshoots
to a dangerous voltage. A larger COUT also helps to lower
the VOUT due to the discharge of the energy in LIN if the
MOSFET BVDSS is used as an input clamp.
Layout Considerations
Figure 10 shows example PCB layouts for the single
N-channel MOSFET (SC70 package) configuration and the
P-channel MOSFET/N-channel MOSFET (Complementary
P, N MOSFET in TSOP-6 package) configuration. Keep the
traces to the MOSFETs wide and short. The PCB traces
associated with the power path through the MOSFETs
should have low resistance.
Si3590DV
436012 F09
Si1470DH
SUPPLY/IN
SUPPLY
IN
OUT
GND
6
5
4
1
2
3
1
2
3
4
8
7
6
5
LTC4360-2
1
2
3
4
8
7
6
5
1
2
3
6
5
4
LTC4360-1
Figure 9. Overvoltage Protection Waveforms When 20V Plugged into 5V System
VIN
20V/DIV
VGATE
10V/DIV
VOUT
5V/DIV
ICABLE
10A/DIV
1s/DIV
436012 F08
FIGURE 8 CIRCUIT
RIN = 150m, LIN = 2H
LOAD = 10, COUT = 10F (16V, SIZE 1210)
with the USB input already live. As shown in Figure 9, a
large current can build up in LIN to charge up COUT. When
the N-channel MOSFET shuts off, the energy stored in LIN
is dumped into COUT, causing a large 40V input transient.
The LTC4360 limits this to a 1V rise in the output voltage.
If the voltage rise at VOUT due to the discharge of the
energy in LIN into COUT is not acceptable or the avalanche
capability of the MOSFET is exceeded, an additional exter-
nal clamp such as the SMAJ24A can be placed between
IN and GND. COUT is the decoupling capacitor of the
protected circuits and its value will largely be determined
by their requirements. Using a larger COUT will work with
LIN to slow down the dV/dt at OUT, allowing time for the
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PDF描述 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4360ISC8-1#PBF | 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:OVER VOLTAGE PROTECTION CTRL 制造商:Linear Technology 功能描述:OVER VOLTAGE PROTECTION CTRL, 2.5-5.5V, SC-70-8; Controller Applications:Cell,Smart Phones, Digital Cameras, Handheld Computers, MP3,MP4 Players, USB Protection; Internal Switch:No; Supply Voltage Min:2.5V; Supply Voltage Max:5.5V ;RoHS Compliant: Yes |
| LTC4360ISC8-1#TRMPBF | 功能描述:IC OVERVOLTAGE PROT CONT SC70-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LTC4360ISC8-1#TRPBF | 功能描述:IC CTLR OVP 80V SHUTDOWN SC70-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| LTC4360ISC8-2#PBF | 制造商:Linear Technology 功能描述:Bulk |
| LTC4360ISC8-2#TRMPBF | 功能描述:IC OVERVOLTAGE PROT CONT SC70-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
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