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PDF MAX34561 Data sheet ( Hoja de datos )
| Número de pieza | MAX34561 | |
| Descripción | 12V/5V Hot-Plug Switch | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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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/
1 page  
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(TA = +25°C, unless otherwise noted.)
TYPICAL MAX34561 TURN-ON WAVEFORMS
VCC = 5V, 20Ω RESISTIVE LOAD
MAX34561 toc09
VCC5
LOAD5
TIMER5
VRAMP5
2ms/div
TURN-ON WAVEFORMS
VCC = 12V, 20Ω RESISTIVE LOAD
MAX34561 toc12
VCC12
5V/div
LOAD12
500mA/div
LOAD CURRENT
12V/5V Hot-Plug Switch
Typical Operating Characteristics (continued)
TYPICAL MAX34561 TURN-ON WAVEFORMS
VCC = 12V, 20Ω RESISTIVE LOAD
MAX34561 toc10
VCC12
LOAD12
VRAMP12
TIMER12
5ms/div
TURN-ON WAVEFORMS
VCC = 5V, 3300µF CAPACITIVE LOAD
MAX34561 toc13
VCC5
2V/div
LOAD5
500mA/div
LOAD CURRENT
TURN-ON WAVEFORMS
VCC = 5V, 20Ω RESISTIVE LOAD
MAX34561 toc11
VCC5
2V/div
LOAD5
LOAD CURRENT
500mA/div
5ms/div
TURN-ON WAVEFORMS
VCC = 12V, 3300µF CAPACITIVE LOAD
MAX34561 toc14
VCC12
5V/div
LOAD12
500mA/div
LOAD CURRENT
5ms/div
5ms/div
10ms/div
THERMAL SHUTDOWN WITH AUTORETRY ENABLED
VCC = 5V, 2Ω RESISTIVE LOAD
MAX34561 toc15
VCC5
2V/div
LOAD5
LOAD CURRENT
500mA/div
THERMAL SHUTDOWN WITH AUTORETRY ENABLED
VCC = 12V, 2Ω RESISTIVE LOAD
MAX34561 toc16
VCC12
LOAD12
5V/div
500mA/div
LOAD CURRENT
1s/div
500ms/div
5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
REVISION
NUMBER
0
REVISION
DATE
11/10
Initial release
12V/5V Hot-Plug Switch
DESCRIPTION
Revision History
PAGES
CHANGED
—
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
11
© 2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet MAX34561.PDF ] | |
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