TPS2592BA Datasheet, PDF (1/34 Pages) Texas Instruments – 5-V eFuse with Over Voltage Protection and Blocking FET Control

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TPS2592BA, TPS2592BL
SLVSCU2 – DECEMBER 2014
TPS2592Bx 5-V eFuse with Over Voltage Protection and Blocking FET Control
Not Recommended for New Designs
1 Features
•1 5-V eFuse, V_ABSMAX = 20 V
• Integrated 28-mΩ Pass MOSFET
• Fixed 6.1-V Over Voltage Clamp
• 2-A to 5-A Adjustable I_LIMIT (±15% Accuracy)
• Reverse Current Blocking Support
• Programmable OUT Slew Rate, UVLO
• Built-in Thermal Shutdown
• UL 2367 Recognized – File No. 169910*
– *R_ILIM ≤ 100 kΩ (4 A max)
• Safe During Single Point Failure Test (UL60950)
• Small Foot Print – 10L (3 mm x 3 mm) VSON
2 Applications
• Adapter Powered Devices
• HDD and SSD Drives
• Set Top Boxes
• Servers / AUX Supplies
• Fan Control
• PCI/PCIe Cards
3 Description
The TPS2592Bx family of eFuses is a highly
integrated circuit protection and power management
solution in a tiny package. The devices use few
external components and provide multiple protection
modes. They are a robust defense against overloads,
shorts circuits, voltage surges, excessive inrush
current, and reverse current.
Current limit level can be set with a single external
resistor. Over voltage events are limited by internal
clamping circuits to a safe fixed maximum, with no
external components required. Applications with
particular voltage ramp requirements can set dV/dT
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 input bus. The
BFET pin is for such systems. An external NFET can
be connected “Back to Back (B2B)” with the TPS2592
output and the gate driven by BFET to prevent
current flow from load to source (see Figure 42).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS2592BA
TPS2592BL
VSON (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Application Schematic
Transient: Output Short Circuit
VIN
R1
R2
CdVdT
VIN
OUT
28m:
EN/UVLO
BFET
dV/dT
ILIM
GND
TPS2592xx
OUT
COUT
RLIM
VIN
VOUT
C2
C3
I_OUT
C1
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.