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PDF MAX34561 Data sheet ( 特性 )

部品番号 MAX34561
部品説明 12V/5V Hot-Plug Switch
メーカ Maxim Integrated Products
ロゴ Maxim Integrated Products ロゴ 

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MAX34561 Datasheet, MAX34561 PDF,ピン配置, 機能
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19-5621; Rev 0; 11/10
12V/5V Hot-Plug Switch
General Description
The MAX34561 is a dual, self-contained, hot-plug switch
intended to be used on +12V and +5V power rails to limit
through current and to control the power-up output-volt-
age ramp. The device contains two on-board n-channel
power MOSFETs that are actively closed-loop controlled
to ensure that an adjustable current limit is not exceed-
ed. The maximum allowable current through the device
is adjusted by external resistors connected between the
LOAD and ILIM pins.
The device can control the power-up output-voltage
ramp. Capacitors connected to the VRAMP pins set
the desired voltage-ramp rate. The output voltages
are unconditionally clamped to keep input overvoltage
stresses from harming the load. The device also contains
adjustable power-up timers. Capacitors connected to
the TIMER pins determine how long after power-on reset
(POR) the device should wait before starting to apply
power to the loads. The TIMER pins can be driven with
a digital logic output to create a device-enable function.
The device contains an on-board temperature sensor
with hysteresis. If operating conditions cause the device
to exceed an internal thermal limit, the device either
unconditionally shuts down and latches off awaiting a
POR, or waits until the device has cooled by the hyster-
esis amount and then restarts.
RAID/Hard Drives
Servers/Routers
PCI/PCI ExpressM
InfiniBandTM/SM
Base Stations
Applications
Features
S Completely Integrated Hot-Plug Functionality for
+12V and +5V Power Rails
S Dual Version of the DS4560
S On-Board Power MOSFETs (68mI and 43mI)
S No High-Power RSENSE Resistors Needed
S Adjustable Current Limits
S Adjustable Output-Voltage Slew Rates
S Adjustable Power-Up Enable Timing
S Output Overvoltage Limiting
S On-Board Thermal Protection
S On-Board Charge Pump
S User-Selectable Latchoff or Automatic Retry
Operation
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX34561T+
-40NC to +85NC 24 TQFN-EP*
MAX34561T+T
-40NC to +85NC 24 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS compliant package.
T = Tape and reel.
*EP = Exposed pad.
PCI Express is a registered trademark of PCI-SIG Corp.
InfiniBand is a trademark and service mark of InfiniBand Trade
Association.
________________________________________________________________ Maxim Integrated Products   1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Datasheet pdf - http://www.DataSheet4U.net/

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