TPS259230 Datasheet, PDF (1/33 Pages) Texas Instruments – 5V eFuse with Over Voltage Protection and Blocking FET Control

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TPS259230, TPS259231
SLVSCV0A – AUGUST 2015 – REVISED AUGUST 2015
TPS25923x 5-V eFuse with Over Voltage Protection and Blocking FET Control
1 Features
•1 5-V eFuse, V_ABSMAX = 20 V
• Integrated 28-mΩ Pass MOSFET
• Fixed 6.1-V Over Voltage Clamp
• 1-A to 5-A Adjustable I_LIMIT
• ±8% I_LIMIT Accuracy at 3.7A
• Reverse Current Blocking Support
• Programmable OUT Slew Rate, UVLO
• Built-in Thermal Shutdown
• UL 2367 Recognition Pending
• 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 TPS25923x 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
TPS25923x output and the gate driven by BFET to
prevent current flow from load to source (see
Figure 43).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS259230
TPS259231
VSON (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Application Schematic
Transient: Output Short Circuit
VIN
R1
R2
CdVdT
VIN
OUT
28m:
EN/UVLO
BFET
dV/dT
ILIM
GND
TPS25923x
OUT
COUT
RLIM
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.