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參數資料
| 型號： | MAX5904 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers |
| 中文描述： | 低電壓、雙路、熱插拔控制器/供電排序器 |
| 文件頁數： | 1/22頁 |
| 文件大?。?/td> | 526K |
| 代理商： | MAX5904 |
General Description
The MAX5904–MAX5909 dual hot-swap controllers
provide complete protection for dual-supply systems.
These devices hot swap two supplies ranging from +1V
to +13.2V, provided one supply is at or above 2.7V,
allowing the safe insertion and removal of circuit cards
into live backplanes.
The discharged filter capacitors of the circuit card pro-
vide low impedance to the live backplane. High inrush
currents from the backplane to the circuit card can burn
up connectors and components, or momentarily col-
lapse the backplane power supply leading to a system
reset. The MAX5904 family of hot-swap controllers pre-
vents such problems by gradually ramping up the output
voltage and regulating the current to a preset limit when
the board is plugged in, allowing the system to stabilize
safely. After the startup cycle is completed, two on-chip
comparators provide VariableSpeed/BiLevel protec-
tion against short-circuit and overcurrent faults, as well
as immunity against system noise and load transients. In
the event of a fault condition, the load is disconnected.
The MAX5905/MAX5907/MAX5909 must be unlatched
after a fault, and the MAX5904/MAX5906/MAX5908 auto-
matically restart after a fault.
The MAX5904 family offers a variety of options to reduce
component count and design time. All devices integrate
an on-board charge pump to drive the gates of low-cost,
external N-channel MOSFETs. The devices offer integrat-
ed features like startup current regulation and current
glitch protection to eliminate external timing resistors and
capacitors. The MAX5906–MAX5909 provide an open-
drain status output, an adjustable startup timer, an
adjustable current limit, an uncommitted comparator,
and output undervoltage/overvoltage monitoring.
The MAX5904/MAX5905 are available in 8-pin SO pack-
ages. The MAX5906–MAX5909 are available in space-
saving 16-pin QSOP packages.
Applications
PCI-Express Applications
Basestation Line Cards
Network Switches or Routers
Solid-State Circuit Breaker
Power-Supply Sequencing
Hot Plug-In Daughter Cards
RAID
Features
o
Safe Hot Swap for +1V to +13.2V Power
Supplies
Requires One Input
≥
2.7V
o
Low 25mV Default Current-Limit Threshold
o
Inrush Current Regulated at Startup
o
Circuit Breaker Function
o
Adjustable Circuit Breaker/Current-Limit
Threshold
o
VariableSpeed/BiLevel Circuit-Breaker Response
o
Auto-Retry or Latched Fault Management
o
On/Off Sequence Programming
o
Status Output Indicates Fault/Safe Condition
o
Output Undervoltage and Overvoltage Monitoring
and/or Protection
Ordering Information
M
Low-Voltage, Dual Hot-Swap Controllers/Power
Sequencers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
GATE2
ON
GND
1
2
8
7
IN2
SENSE2
SENSE1
GATE1
IN1
NARROW SO
TOP VIEW
3
4
6
5
MAX5904
MAX5905
Pin Configurations
19-2238; Rev 2; 11/03
EVALUATION KIT
AVAILABLE
PART
TEMP RANGE
-40
°
C to +85
°
C
0
°
C to +85
°
C
-40
°
C to +85
°
C
0
°
C to +85
°
C
-40
°
C to +85
°
C
0
°
C to +85
°
C
-40
°
C to +85
°
C
0
°
C to +85
°
C
-40
°
C to +85
°
C
0
°
C to +85
°
C
-40
°
C to +85
°
C
0
°
C to +85
°
C
PIN-PACKAGE
8 SO
8 SO
8 SO
8 SO
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
16 QSOP
MAX5904
ESA*
MAX5904USA
MAX5905
ESA*
MAX5905USA
MAX5906
EEE*
MAX5906UEE
MAX5907
EEE*
MAX5907UEE
MAX5908
EEE*
MAX5908UEE
MAX5909
EEE*
MAX5909UEE
*
Contact factory for availability.
Selector Guide and Typical Operating Circuits appear at end
of data sheet.
VariableSpeed/BiLevel is a trademark of Maxim Integrated
Products, Inc.
Pin Configurations continued at end of data sheet.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX5904USA | Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers |
| MAX5905USA | Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers |
| MAX5906UEE | Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers |
| MAX5907UEE | Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers |
| MAX5908UEE | Film Capacitor; Voltage Rating:50VDC; Capacitor Dielectric Material:Polyester; Capacitance:0.68uF; Capacitance Tolerance:+/- 10%; Series:WMF; Termination:Axial Leaded; Working Voltage, DC:50V RoHS Compliant: Yes |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5904ESA | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5904ESA+ | 功能描述:熱插拔功率分布 13.2V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5904ESA+T | 功能描述:熱插拔功率分布 13.2V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5904ESA-T | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5904USA | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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