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参数资料
| 型号： | MAX5957LETN+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/25页 |
| 文件大小： | 634K |
| 描述： | IC TRPL PCI EXP/HOT-PLUG 56-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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： | 56-WFQFN 裸露焊盘 |
| 供应商设备封装： | 56-TQFN-EP（7x7） |
| 包装： | 带卷 (TR) |
Triple PCI Express, Hot-Plug Controllers
______________________________________________________________________________________ 11
Pin Description
PIN
NAME
FUNCTION
1
12SB-
Slot B 12V Negative Current-Sense Input. Connect 12SB- to the negative side of the current-sense
resistor using the Kelvin-sensing technique to ensure accurate current sensing.
2
12SB+
Slot B 12V Positive Current-Sense Input. Connect the positive terminal of the current-sense resistor
to 12SB+ using the Kelvin-sensing technique to ensure accurate current sensing.
3
AUXONB
Slot B 3.3V Auxiliary Output Enable. A logic-high at AUXONB turns on the slot B auxiliary output.
4
ONB
Slot B 12V and 3.3V Main Outputs Enable. A logic-high at ONB turns on the 12V and 3.3V main
outputs of slot B (see Table 2).
5
INPUT1
Digital Logic Gate Input 1
6
OUTPUT1 Digital Output One. 4ms debounced digital output of INPUT1.
7
INPUT2
Digital Logic Gate Input 2
8
OUTPUT2 Digital Output 2. 4ms debounced digital output of INPUT2.
9, 27
GND
Ground
10
FONC
Slot C Forced-On Input. FONC has a 50k& internal pullup to 3.3VAUXIN. A logic-low on FONC turns
on all slot C outputs as long as the power inputs are within their operating range, regardless of the
status of the other input signals. Leave FONC unconnected for normal operation.
11
PRES-DETC
Slot C Present-Detect Input. PRES-DETC accepts inputs from PRSNT-# on a PCIe connector. PRES-
DETC has an internal 50k& pullup to 3.3VAUXIN. When PRES-DETC is low, the outputs follow the
command from ONC and AUXONC after a 4ms debounced time. When PRES-DETC goes from low
to high, all outputs of the respective slot shut down with no delay.
12
ONC
Slot C 12V and 3.3V Main Outputs Enable. A logic-high at ONC turns on the 12V and 3.3V main
outputs of slot C (see Table 2).
13
AUXONC
Slot C 3.3V Auxiliary Output Enable. A logic-high at AUXONC turns on the slot C auxiliary output.
14
12SC+
Slot C 12V Positive Current-Sense Input. Connect the positive terminal of the current-sense resistor
to 12SC+ using the Kelvin-sensing technique to ensure accurate current sensing.
15
12SC-
Slot C 12V Negative Current-Sense Input. Connect 12SC- to the negative side of the current-sense
resistor using the Kelvin-sensing technique to ensure accurate current sensing.
16
12GC
Slot C 12V Gate-Drive Output. Connect 12GC to the gate of slot Cs 12V MOSFET. At power-up,
12GC is raised to the internal charge-pump voltage level by a constant current.
17
3.3SC+
Slot C 3.3V Positive Current-Sense Input. Connect the positive side of the current-sense resistor to
3.3SC+ using the Kelvin-sensing technique to ensure accurate current sensing.
18
3.3SC-
Slot C 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.
19
3.3GC
Slot C 3.3V Gate-Drive Output. Connect 3.3GC to the gate of slot Cs 3.3V MOSFET. At power-up,
3.3GC is charged to 5.5V above the 3.3V supply by a constant current derived from V
12VIN
. V
3.3GCs
rise time is determined by the external gate capacitance.
20
FAULTC
Open-Drain Fault Output Signal. FAULTC latches active low whenever slot C 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 the temperature condition.
If the fault is detected in the main outputs, FAULTC must be reset by toggling the ONC input. If the
fault is in the auxiliary output, FAULTC must be reset by toggling both ONC and AUXONC. For the
autorestart version, FAULTC is reset when the part initiates the next power-on cycle.
21
PWRGDC
Open-Drain Power-Good Output. PWRGDC goes low 160ms
after all outputs of slot C reach their
final value and the power MOSFETs are fully enhanced.
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相关代理商/技术参数 |
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| MAX5958AETN+ | 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 |
| MAX5958AETN+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 |
| MAX5958LETN+ | 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 |
| MAX5958LETN+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 |
| 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 |
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