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TPS2590 数据手册 - TI(德州仪器)
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TI(德州仪器)
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具有双故障阈值和可选故障响应的 20V、5.5A、30mΩ 电子熔丝
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TPS2590数据手册
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16 15
9876
IN
EN
OUT
ILIM IFLT CTGNDRTRY
FLT
TPS2590
UDG-10102
0.1 mF
49.9 kW40.2 kW
C
LOAD
Optional: To
System Monitor
Output To Voltage Bus
or DC-to-DC Converter
Input
Voltage Bus
TPS2590
www.ti.com
SLUS960G –JULY 2009–REVISED JANUARY 2014
5-A, 20-V High-Current Load Switch
Check for Samples: TPS2590
1
FEATURES
DESCRIPTION
The TPS2590 device provides highly integrated hot-
2
• Integrated Pass MOSFET
swap power management and superior protection in
• Up to 20-V Bus Operation
applications where the load is powered by busses up
• Programmable Fault Timer
to 20 V. The maximum UV turn-on threshold of 2.9 V
makes the TPS2590 device well suited to standard
• Programmable Fault Current
bus voltages as low as 3.3 V. This device is intended
• Programmable Hard Current-Limit
for systems where a voltage bus must be protected to
• Fast Disable
prevent load shorts from interrupting or damaging
other system components. The TPS2590 device is in
• Thermal Shutdown
a 16-pin QFN package.
• Load Fault Alert
The TPS2590 device has multiple programmable
• Latching and Auto-retry Operation
protection features. Load protection is accomplished
• 4-mm x 4-mm QFN
by a non-current-limiting fault threshold, a hard
• –40°C to 125°C Junction Temperature Range
current-limit threshold, and a fault timer. The dual
current thresholds allow the system to draw high
• UL2367 Recognized - File Number E169910
current for short periods without causing a voltage
droop at the load. An example of this is a disk drive
APPLICATIONS
startup. This technique is ideal for loads that
• RAID Arrays
experience brief high demand, but benefit from
protection levels consistent with average current
• Telecommunications
draw.
• Plug-In Circuit Boards
Hotswap MOSFET protection is provided by power
• Disk Drives
limit circuitry which protects the internal MOSFET
• SSDs
against SOA related failures.
• PCIE
The TPS2590 device provides a fault indicator output
• Fan Control
and allows latch off or retry on fault.
• Notebooks and Netbooks
12-V, 3.5-A APPLICATION
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2PowerPad is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009–2014, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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