TPS25910 Datasheet, PDF (1/25 Pages) Texas Instruments – 3-V to 20-V High-Current Load Switch with Programmable Inrush Slew Rate

TPS25910
www.ti.com
SLUSAR6B – SEPTEMBER 2012 – REVISED MARCH 2013
3-V to 20-V High-Current Load Switch with Programmable Inrush Slew Rate
Check for Samples: TPS25910
FEATURES
1
• 3-V to 20-V Bus Operation
• Integrated 30-mΩ Pass MOSFET
• Programmable Current Limit from:
0.83 A to 6.5 A
• Programmable Inrush Current Slew Rate
• Thermal Shutdown and fault alert
• 4-mm x 4-mm QFN16
• -40°C to 125°C Junction Temperature Range
APPLICATIONS
• Solid State Drive (SSD)
• Hard Disk Drive (HDD)
• RAID Arrays
• Telecommunications
• Plug-In Circuit Boards
• Notebooks and Netbooks
DESCRIPTION
The TPS25910 provides highly integrated hot-swap
power management and superior protection in
applications where the load is powered by voltages
between 3 V and 20 V. This device is intended for
systems where a voltage bus must be protected from
undesired permanent and transient overload.
At start up or when hot plugging into the system bus,
the TPS25910 limits the inrush current by controlling
the ramp rate of the output voltage, V_OUT. The slew
rate of V_OUT can be adjusted with a capacitor
between the GATE pin and the GND pin.
Built in SOA protection ensures that the internal
MOSFET operates inside a safe operating area
(SOA) under the harshest operating conditions. In
addition, the current limit threshold, which is
independent of the power limit, can be adjusted with
a resistor between the ILIM pin and the GND pin.
The TPS25910 provides a fault indicator output when
in thermal fault.
The TPS25910 is in a 16-pin QFN package.
12-V, 4.75-A APPLICATION
Input
Voltage
Bus
1/2/3 IN
OUT 10/11 /12
16 EN
4 GATE
C_EXT
GND
5/6
TPS25910
GND
8/9
ILIM GND
7
13
40.2 k?
FLT 15
C_LOAD
GND
14
Optional: To
System
Monitor
Output To Voltage
Bus or DC -to-DC
Converter
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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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