参数资料
型号: MAX5959AECS+
厂商: Maxim Integrated
文件页数: 20/25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:
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
20   ______________________________________________________________________________________
ENABLE CHARGE ON
INTERNAL AUXILIARY
MOSFET DRIVING 3.3AUXO_.
START COUNTING t
SU
FAULT ON 12V
OR 3.3V OUTPUTS
RESET t
FAULT
COUNTER
FAULT
STILL PRESENT?
Y
Y
Y
Y
Y
SHUT DOWN
12V AND 3.3V OUTPUTS.
ASSERT FAULT_
STAY WAITING FOR
t
RESTART
t
FAULT
 ELAPSED?
N
N
N
N
3.3VAUXIN IS OK,
AUXON_ IS HIGH,
PRES_DET IS LOW
RESET FAULT_
START COUNTING
t
FAULT
Y
N
N
N
ARE ALL
MAIN OUTPUTS OK?
NO FAULT
DETECTED
LATCH-OFF
OPTION?
N
ON_ TOGGLED
HIGH e LOW e HIGH
MAIN INPUTS ARE
OK, ON_ IS HIGH
Y
Y
N
ENABLE CHARGE
 ON 3.3G_ AND 12G_.
START
COUNTING t
SU
t
SU
 
ELAPSED?
Y
START PGOOD
THRESHOLD
MONITORING
START COUNTING
t
FAULT
ALL PGOOD
THRESHOLDS
REACHED?
N
N
N
N
Y
Y
Y
Y
ASSERT PWRGD_
AFTER t
POR_HL
 
DELAY
RESET PWRGD_
POWER ON
AUXILIARY OUTPUT.
FAULT_ AND PWRGD_ ARE
HIGH IMPEDANCE
SHUT DOWN ALL OUTPUTS.
ASSERT FAULT_.
STAY WAITING
FOR t
RESTART
RESET FAULT_
ON_ AND
AUXON_ TOGGLED
HIGH e LOW
e HIGH
t
SU
 
ELAPSED?
AUX OUTPUT OK?
NO FAULT DETECTED
FAULT ON 3.3AUXO_?
N
N
t
FAULT
 ELAPSED?
Y
FAULT
STILL PRESENT?
N
Y
Y
LATCH-OFF
OPTION?
RESET t
FAULT
COUNTER
Figure 6. Fault Management Flowchart
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