TPS2590 Datasheet, PDF (1/20 Pages) Texas Instruments – 3-V to 20-V High-Current Load Switch

TPS2590
www.ti.com
SLUS960D – JULY 2009 – REVISED OCTOBER 2011
3-V to 20-V High-Current Load Switch
Check for Samples: TPS2590
FEATURES
1
• Integrated Pass MOSFET
• 3-V to 20-V Bus Operation
• Programmable Fault Timer
• Programmable Fault Current
• Programmable Hard Current Limit
• Fast Disable
• Thermal Shutdown
• Load Fault Alert
• Latching and Auto-retry Operation
• 4-mm x 4-mm QFN
• -40°C to 125°C Junction Temperature Range
• UL Listed - File Number E169910
APPLICATIONS
• RAID Arrays
• Telecommunications
• Plug-In Circuit Boards
• Disk Drive
• Notebooks / Netbooks
DESCRIPTION
The TPS2590 provides highly integrated hot-swap
power management and superior protection in
applications where the load is powered by voltages
between 3.0 V and 20 V. This device is intended for
systems where a voltage bus must be protected to
prevent load shorts from interrupting or damaging
other system components. The TPS2590 is in a
16-pin QFN package.
The TPS2590 has multiple programmable protection
features. Load protection is accomplished by a
non-current limiting fault threshold, a hard current
limit threshhold, and a fault timer. The dual current
thresholds allow the system to draw high current for
short periods without causing a voltage droop at the
load. An example of this is a disk drive startup. This
technique is ideal for loads that experience brief high
demand, but benefit from protection levels consistent
with average current draw.
Hotswap MOSFET protection is provided by power
limit circuitry which protects the internal MOSFET
against SOA related failures.
The TPS2590 provides a fault indicator output and
allows latch off or retry on fault.
12-V, 3.5-A Application
Figure 1.
Input
Voltage Bus
IN
16 EN
TPS2590
OUT
FLT 15
C_LOAD
RTRY
6
GND
ILIM IFLT
CT
Optional: To
7
8
9
System Monitor
40.2 kW 49.9 kW _{0.1 mF}
Output To Voltage Bus
or DC-to-DC Converter
UDG-10102
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.
PRODUCTION DATA information is current as of publication date.
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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