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参数资料
| 型号： | MAX34561T+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/11页 |
| 文件大小： | 0K |
| 描述： | IC HOT-PLUG SW 12V/5V 24TQFN |
| 标准包装： | 2,500 |
| 类型： | 热插拔开关 |
| 应用： | PCI Express 热插拔电源控制 |
| 内部开关： | 是 |
| 电流限制： | 可调 |
| 电源电压： | 5V 或 12V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
12V/5V Hot-Plug Switch
drop across the corresponding power MOSFET and the
load current. See the Thermal Shutdown with Autoretry
Enabled typical operating curves for details.
Applications Information
Exposed Pad
The exposed pad is also a heatsink for the device. The
exposed pad should be connected to a large trace or
plane capable of dissipating heat from the device.
Decoupling Capacitors
It is of utmost importance to properly bypass the device's
supply pins. A decoupling capacitor absorbs the energy
stored in the supply and board parasitic inductance
when the FET is turned off, thereby reducing the magni-
tude of overshoot at V CC . This can be accomplished by
using a high-quality (low ESR, low ESL) ceramic capaci-
tor connected directly between the V CC and GND pins.
Any series resistance with this bypass capacitor lowers
its effectiveness and is not recommended. A minimum
0.5μF ceramic capacitor is required. However, depend-
ing on the parasitic inductances present in the end appli-
cation, a larger capacitor could be necessary.
Unused Pins
If only one side (5V or 12V) of the device is being used,
it is required that the unused V CC , AR, CTIMER, and
VRAMP pins be connected to GND. Leaving these input
pins unconnected can result in interference of the proper
operation of the active portion of the device.
LOAD and ILIM Connections
Small parasitic resistances in the bond wires of the LOAD
pins and in the traces connected to the LOAD pins can
result in a voltage offset while current is flowing. Since
the voltage drop across RILIM is used to set the I SCL and
I OVL limits, this induced offset can increase the value of
I SCL and I OVL from the specified values for any given
R ILIM . To greatly reduce this offset, it is recommended
that one of the LOAD pins have a dedicated connection
to ILIM though R ILIM , and not be used to pass the LOAD
current (Figure 1). This would leave three LOAD pins to
pass I LOAD , which should be sufficient. Because there
is only a small amount of current passed from this lone
LOAD pin to ILIM, there is a negligible voltage offset
applied to the internal comparator. This method is the
best way to attain an accurate current limit for I LOAD .
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages . Note that a “+”, “#”, or
MAX34561
LOAD
LOAD
LOAD
TO APPLICATION
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
LOAD
R ILIM
PACKAGE_
TYPE
24 TQFN-EP
PACKAGE_
CODE
T2444+4
OUTLINE_
NO.
LAND_
PATTERN_NO.
ILIM
Figure 1. LOAD and ILIM Connections
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX34564AETB+ | 功能描述:热插拔功率分布 12V Hot Plug Switch Auto-Retry RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX34564AETB+T | 功能描述:热插拔功率分布 12V Hot Plug Switch Auto-Retry RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX34564BETB+ | 功能描述:热插拔功率分布 12V Hot Plug Switch Latch-Off RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX34564BETB+T | 功能描述:热插拔功率分布 12V Hot Plug Switch Latch-Off RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX34565ETB+ | 功能描述:热插拔功率分布 12V Hot Plug Switch RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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