SLVSC11A – JUNE 2013 – REVISED JUNE 2013
5V/12V eFuse with Over Voltage Protection and Blocking FET Control
Check for Samples:
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FEATURES
12V Protection – TPS2592Ax
5V Protection – TPS2592Bx
Integrated 28mΩ Pass MOSFET
Absolute Maximum Voltage of 20V
Programmable Current Limit (±15% Accuracy)
Blocking FET Driver
Fixed Over Voltage Setting
Programmable OUT Slew Rate, UVLO
Built-in Thermal Shutdown
UL Recognition Pending
Safe during Single Point Failure Test
(UL60950)
Small Foot Print – 10L (3mm x 3mm) VSON
DESCRIPTION
The TPS2592xx family of eFuses are highly
integrated circuit protection and power management
solutions in a tiny package. With few external
components and multiple protection modes, they are
a robust defense against overloads, shorts circuits,
voltage surges, excessive inrush current, and reverse
current. Only one external resistor is required for
setting the current limit level, which has a typical
accuracy of ±15%. Over voltage events are limited by
internal clamping circuits to a safe fixed maximum,
with no external components required. TPS2592Ax
devices provide over voltage protection (OVP) for
12V systems and TPS2592Bx devices for 5V
systems. In cases with particular voltage ramp
requirements, a dV/dT pin is provided that can be
programmed with a single capacitor to ensure proper
output ramp rates. Many systems, such as SSDs,
must not allow holdup capacitance energy to dump
back through the FET body diode onto a drooping or
shorted bus. The BFET pin is for such systems. An
external NFET can be connected “back to back” with
the TPS2592xx output and the gate driven by BFET.
When the TPS2592xx is disabled, then current flow is
stopped in both directions. TPS2592xL parts will latch
off after a fault and TPS2592xA parts will attempt to
restart after the thermal shutoff resets.
Transient: Output Short Circuit
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APPLICATIONS
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HDD and SSD Drives
Set Top Boxes
Servers / AUX Supplies
Fan Control
PCI/PCIe Cards
Switches/Routers
Application Schematic
PRODUCT INFORMATION
PART NUMBER
TPS2592AA
TPS2592BA
TPS2592AL
TPS2592BL
UVLO
4.3 V
4.3 V
4.3 V
4.3 V
OVERVOLTAGE CLAMP (TYP)
15.0 V
6.1 V
15.0 V
6.1 V
FAULT RESPONSE
Auto Retry
Auto Retry
Latched
Latched
STATUS
Active
Preview
Preview
Active
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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.
Copyright © 2013, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
