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| 型号： | MAX5959AECS+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 14/25页 |
| 文件大小： | 632K |
| 描述： | IC CTRLR HOT-PLUG QD 80-TQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 119 |
| 类型： | 热交换控制器 |
| 应用： | 通用型，PCI Express? |
| 内部开关： | 无 |
| 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) |
Quad PCI Express, Hot-Plug Controllers
14 ______________________________________________________________________________________
Pin Description (continued)
PIN
NAME
FUNCTION
63
3.3GA
Slot A 3.3V Gate-Drive Output. Connect 3.3GA to the gate of slot As 3.3V MOSFET. At power-up,
V3.3GA is charged to 5.5V above the 3.3V supply by a constant current derived from V
12VIN
. V
3.3GA
s
rise time is determined by the external gate capacitance.
64
FAULTA
Open-Drain Fault Output Signal. FAULTA latches active low whenever slot A outputs are shut down due
to a fault. A fault is either of:
" An overcurrent condition lasting longer than the overcurrent timeout.
" A device over temperature condition.
If the fault is detected in the main outputs, FAULTA must be reset by toggling the ONA input. If the fault
is in the auxiliary output, FAULTA must be reset by toggling both ONA and AUXONA. For the autorestart
version, FAULTA is reset when the part initiates the next power-on cycle.
65
PWRGDA
Open-Drain Power-Good Output. PWRGDA goes low 160ms
after all outputs of slot A reach their final
value and the power MOSFETs are fully enhanced.
67, 68
3.3AUXOA Slot A 3.3V Auxiliary Power-Supply Output
72, 73
3.3AUXOB Slot B 3.3V Auxiliary Power-Supply Output
74
PWRGDB
Open-Drain Power-Good Output. PWRGDB goes low 160ms
after all outputs of slot B reach their final
value and the power MOSFETs are fully enhanced.
75
FAULTB
Open-Drain Fault Output Signal. FAULTB latches active-low whenever slot B outputs are shut down due
to a fault. A fault is either of:
" An overcurrent condition lasting longer than the overcurrent timeout.
" A device over temperature condition.
If the fault is detected in the main outputs, FAULTB must be reset by toggling the ONB input. If the fault
is in the auxiliary output, FAULTB must be reset by toggling both ONB and AUXONB. For the autorestart
version, FAULTB is reset when the part initiates the next power-on cycle.
76
3.3GB
Slot B 3.3V Gate-Drive Output. Connect 3.3GB to the gate of slot Bs 3.3V MOSFET. At power-up,
V
3.3GB
is charged to 5.5V above the 3.3V supply by a constant current derived from V
12VIN
. V
3.3GB
s
rise time is determined by the external gate capacitance.
77
3.3SB-
Slot B 3.3V Negative Current-Sense Input. Connect to the negative side of the sense resistor using the
Kelvin-sensing technique to ensure accurate current sensing.
78
3.3SB+
Slot B 3.3V Positive Current-Sense Input. Connect the positive side of the current-sense resistor to
3.3SB+ using the Kelvin-sensing technique to ensure accurate current sensing.
79
12GB
Slot B 12V Gate-Drive Output. Connect 12GB to the gate of slot Bs 12V MOSFET. At power-up, V
12GB
is raised to the internal charge-pump voltage level by a constant current.
Detailed Description
The MAX5959/MAX5960 quad hot-plug controllers are
designed for PCIe applications. The devices provide
hot-plug control for 12V, 3.3V, and 3.3V auxiliary sup-
plies for three PCIe slots. The MAX5959/MAX5960s
logic inputs/outputs allow interfacing directly with the
system hot-plug-management controller or through an
SMBus with an external I/O expander. An integrated
debounced attention switch and present-detect signals
are included to simplify system design (Figure 1).
The MAX5959/MAX5960 drive eight external n-chan-
nel MOSFETs to control the 12V and 3.3V main out-
puts. The 3.3V auxiliary outputs are controlled through
internal 0.2?n-channel MOSFETs. Internal charge
pumps provide a gate drive for the 12V outputs while
the gate drive of the 3.3V output is driven by the 12V
input supply. The 3.3V auxiliary outputs are complete-
ly independent from the main outputs with their own
charge pumps.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5959AECS+ | 功能描述:热插拔功率分布 Triple PCIe Hot Plug Controller 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 |
| MAX5959AECS+T | 功能描述:热插拔功率分布 Triple PCIe Hot Plug Controller 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 |
| MAX5959LECS+ | 功能描述:热插拔功率分布 Triple PCIe Hot Plug Controller 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 |
| MAX5959LECS+T | 功能描述:热插拔功率分布 Triple PCIe Hot Plug Controller 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 |
| MAX5960AECS+ | 功能描述:热插拔功率分布 Triple PCIe Hot Plug Controller 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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