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PDF MAX34565 Data sheet ( Hoja de datos )
| Número de pieza | MAX34565 | |
| Descripción | 12V Hot-Plug Switch | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX34565 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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19-6083; Rev 0; 12/11
MAX34565
12V Hot-Plug Switch in TDFN Package
General Description
The MAX34565 is a hot-plug controller for 12V power
rails. It is a completely integrated solution including the
required power-pass MOSFET device for 12V supplies.
During hot-plug, the device controls the supply output
voltage ramp (dV/dt) and limits the current at a user-
controlled level. The device also limits the output voltage
to protect downstream devices from overvoltage events.
The MAX34565 is offered in a latchoff version.
RAID/Hard Drives
Servers
Switches/Routers
Applications
PCI/PCI Express®
InfiniBandTM/SM
Base Stations
Features
S Completely Integrated Hot-Plug Functionality for
12V Power Rails
S On-Board Power MOSFET
S No High Power RSENSE Resistor Needed
S Adjustable Current Limit
S Adjustable Output Voltage Slew Rate
S Thermal Fault Indication
S Output Overvoltage Limiting
S On-Board Thermal Protection
S On-Board Charge Pump
S Latchoff Version
Ordering Information appears at end of data sheet.
Functional Diagram
+12V
SUPPLY
VCC
UVLO
5V CHARGE
REG PUMP
68mΩ
CURRENT
LIMIT
LOAD
ILIM
RILIM
+12V
LOAD
MAX34565
OVERVOLTAGE
LIMIT
EN/FAULT
1.4V
17µA
VOHT
POR
BLANKING
THERMAL
LIMIT
VOLT
THERMAL RESET
GND
VRAMP
CVRAMP
PCI Express is a registered service mark of PCI-SIG Corp.
InfiniBand is a trademark and service mark of InfiniBand Trade Association.
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX34565.related
����������������������������������������������������������������� 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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MAX34565
12V Hot-Plug Switch in TDFN Package
Pin Configuration
TOP VIEW
LOAD LOAD LOAD LOAD LOAD
10 9 8 7 6
MAX34565
+ VCC/EP
1234 5
GND VRAMP EN/ ILIM N.C.
FAULT
TDFN
(3mm x 3mm)
Pin Description
PIN NAME
1
GND
Ground Connection
FUNCTION
Voltage Ramp Control. A capacitor connected to this pin determines the voltage ramp of the LOAD
2 VRAMP output during turn-on according to the equation tVRAMP = 25E6 x CVRAMP for voltage ramp from 0
to 12V. This pin can be left open circuit for a minimum ramp time.
Enable/Fault. This pin is a multiple function digital input-output pin. When this pin is externally pulled
low, the MOSFET is turned off. When this pin is left open or not externally driven, the internal pullup
3 EN/FAULT reference pulls the input high, and the MOSFET is allowed to turn on. Note: Do not use an
external pullup on this pin. If the device experiences a thermal fault, this pin becomes an output that
is pulled internally to a mid-level voltage, VFAULT.
4
ILIM
Supply Current Limit Adjust. A resistor from this pin to LOAD determines the current limit for the
pass connection.
5
N.C.
No Connection. Do not connect any signal to this pin.
6
7
8 LOAD Load Output. N-channel power MOSFET source connection.
9
10
12V Supply Input/Exposed Pad. Power-supply input and n-channel power MOSFET drain connec-
— VCC/EP tion. Should be connected to a large trace or plane. The EP also acts as a heatsink, and can
dissipate heat from the device.
����������������������������������������������������������������� Maxim Integrated Products 5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MAX34565.PDF ] | |
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