MAX34565 Datasheet, PDF (1/10 Pages) Maxim Integrated Products – 12V Hot-Plug Switch in TDFN Package

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^®
InfiniBand^TM/SM
Base Stations
Features
S Completely Integrated Hot-Plug Functionality for
12V Power Rails
S On-Board Power MOSFET
S No High Power R_SENSE 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
VCC
SUPPLY
UVLO
5V
CHARGE
REG
PUMP
68mΩ
MAX34565
CURRENT
LIMIT
OVERVOLTAGE
LIMIT
LOAD
ILIM
RILIM
+12V
LOAD
17µA
EN/FAULT
1.4V
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
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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.