Texas Instruments TPS2492 Hot Swap Controller Evaluation Module for Positive 48V Rails TPS2492EVM-003 TPS2492EVM-003 データシート
製品コード
TPS2492EVM-003
User
'
s Guide
SLUU425A
–
May 2010
–
Revised March 2011
Using the TPS2492/3 Hot Swap Controller
This User
’
s Guide describes the setup and operation of the TPS2492/3 System Test Board.
1
Introduction
This User
’
s Guide describes the features of the TPS2492/3EVM. The TPS2492/3 schematic, layout and
List of Materials are provided.
2
Description
The EVM is a 9-V to 80-V module using the TPS2492/3 hot swap controller with external MOSFET. At
power on, the output is power limited to control inrush current and protect the MOSFET. On an
over-current condition, the controller interrupts power to the load at high speed and signals load status.
Operating current, MOSFET power dissipation, and fault timer settings are hardware programmable.
power on, the output is power limited to control inrush current and protect the MOSFET. On an
over-current condition, the controller interrupts power to the load at high speed and signals load status.
Operating current, MOSFET power dissipation, and fault timer settings are hardware programmable.
2.1
Applications
•
Server
–
Plug-In Circuit Boards
–
RAID / Disk Drive
•
Telecom
–
ATCA
–
Micro-ATCA
•
General Hot Plug
2.2
Features
•
9-V to 80-V Operation
•
Controlled Inrush Current
•
Fast Circuit Breaker Control
•
Hardware Programmable
–
MOSFET Power Limit
–
Fault Current
–
Fault Timer to Avoid Nuisance Tripping
–
TPS2492 Latch Off or TPS2493 Retry
•
LED Status Display
–
FAULT
–
POWER GOOD
•
Slide Switch Controling the ENABLE Signal.
•
25-A Nominal Operation with Thermal Characteristics for Proper MOSFET Operation
•
On-Board transorb for Over-Voltage Input Protection
•
Common Output Diode Prevents Negative Spiking if the Load is Removed While Powered On.
•
IMON Output Signal Voltage Representing Load Current.
•
Test Points for Circuit Operation Monitoring
2
Using the TPS2492/3 Hot Swap Controller
SLUU425A
–
May 2010
–
Revised March 2011
Copyright
©
2010
–
2011, Texas Instruments Incorporated