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參數(shù)資料
| 型號： | MAX5919 |
| 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 with Independent ON/OFF Control |
| 中文描述： | 低電壓、雙路、熱插拔控制器，帶有獨立的開/關控制 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 443K |
| 代理商： | MAX5919 |
General Description
The MAX5918 and MAX5919 are +1V to +13.2V dual
hot-swap controllers with independent on/off control for
complete protection of dual-supply systems. They allow
the safe insertion and removal of circuit cards into live
backplanes. The MAX5918 and MAX5919 operate
down to 1V provided one of the inputs is above 2.7V
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 collapse
the backplane power supply leading to a system reset.
The MAX5918 and MAX5919 hot-swap controllers pre-
vent 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 protection
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
MAX5918L and MAX5919L must be unlatched after a
fault and the MAX5918A and MAX5919A automatically
restart after a fault.
The MAX5918 and MAX5919 integrate an on-board
charge pump to drive the gates of low-cost, external N-
channel MOSFETs. The devices offer integrated fea-
tures like startup current regulation and current glitch
protection to eliminate external timing resistors and
capacitors. These devices provide open-drain status
outputs, an adjustable startup timer and adjustable cur-
rent limits. The MAX5918 provides output undervolt-
age/overvoltage protection for each channel, while the
MAX5919 provides undervoltage/overvoltage monitor-
ing for each channel.
The MAX5918 and MAX5919 are available in a space-
saving 16-pin QSOP package and are specified over
the extended -40°C to +85°C temperature range.
Applications
Features
o
Safe Hot Swap for +1V to +13.2V Power Supplies
with V
IN1
or V
IN2
≥
2.7V
o
Independent On/Off Control for Each Channel
o
Internal Charge Pumps Generate N-Channel
MOSFET Gate Drives
o
Inrush Current Regulated at Startup
o
Circuit Breaker Function
o
Adjustable Circuit Breaker/Current-Limit
Threshold from 25mV to 100mV
o
VariableSpeed/BiLevel Circuit Breaker Response
o
Autoretry or Latched Fault Management
o
Status Outputs Indicate Fault/Safe Condition
o
Output Undervoltage and Overvoltage Monitoring
or Protection
M
Low-Voltage, Dual Hot-Swap
Controllers with Independent ON/OFF Control
________________________________________________________________
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
Ordering Information
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
PGOOD1
PGOOD2
ON2
IN2
SENSE2
GATE2
ON1
LIM2
MON2
TOP VIEW
MAX5918
MAX5919
QSOP
TIM
IN1
GND
SENSE1
GATE1
LIM1
MON1
Pin Configuration
19-2496; Rev 0; 7/02
EVALUATION KIT
AVAILABLE
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
16 QSOP
16 QSOP
16 QSOP
16 QSOP
MAX5918
AEEE
MAX5918LEEE
MAX5919
AEEE
MAX5919LEEE
Variable Speed/BiLevel is a trademark of Maxim Integrated
Products, Inc.
Selector Guide and Typical Application Circuit appear at
end of data sheet.
Base Station Line Cards
Network Switches,
Routers, Hubs
Solid-State Circuit
Breakers
RAID
Power-Supply Sequencing
Hot Plug-In Daughter
Cards
Portable Computer Device
Bays (Docking Stations)
相關PDF資料 |
PDF描述 |
|---|---|
| MAX5918-MAX5919 | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
| MAX5919LEEE | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
| MAX5918LEEE | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
| MAX5918 | Quadruple 2-Line To 1-Line Data Selectors/Multiplexers 20-LCCC -55 to 125 |
| MAX5918AEEE | Low-Voltage, Dual Hot-Swap Controllers with Independent ON/OFF Control |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5919AEEE | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE, DUAL HOT-SWAP CONTROLLERS WITH I - Rail/Tube |
| MAX5919AEEE-T | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE, DUAL HOT-SWAP CONTROLLERS WITH I - Tape and Reel |
| MAX5919LEEE | 制造商:Maxim Integrated Products 功能描述:LOW-VOLTAGE, DUAL HOT-SWAP CONTROLLERS WITH I - Rail/Tube |
| MAX5919LEEE+ | 制造商:Maxim Integrated Products 功能描述:HOT SWAP CNTRLR 16QSOP - Rail/Tube |
| MAX5920AESA | 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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