TPS25980
SLVSFR1 – ATUPGUSS2T52908200
SLVSFR1 – AUGUST 2020
www.ti.com
TPS25980: 2.7- 24 V, 8 A, 3 mΩ Smart eFuse - Integrated Hot-swap Protection With
Adjustable Transient Fault Management
1 Features
3 Description
•
Wide input voltage range: 2.7 V to 24 V
– 30-V Absolute maximum
Low On-Resistance: RON = 3-mΩ typical
Circuit Breaker Response
Adjustable current limit threshold
– Range: 2 A to 8 A
– Accuracy: ± 8% (typical for ILIM > 5 A)
Adjustable over-current blanking timer
– Handles load transients without tripping
Accurate current monitor output
– ± 3% (typical at 25 °C for IOUT > 3 A)
User configurable fault response
– Latch-off or auto-retry
– Number of retries (Finite or indefinite)
– Delay between retries
Robust short-circuit protection
– Fast-trip response time < 400-ns typical
– Tested against 1 million power-into-short events
– Immune to line transients - no nuisance tripping
Adjustable output slew rate (dVdt) control
Adjustable undervoltage lockout
Overvoltage lockout (Fixed 3.7-V, 7.6-V, 16.9-V
and no-OVLO options)
Integrated overtemperature protection
Power good indication
Adjustable load detect and handshake timer
UL 2367 Recognition
The TPS25980x family of eFuses is a highly
integrated circuit protection and power management
solution in a small package. The devices are
operational over a wide input voltage range. A single
part caters to low-voltage systems needing minimal
I*R voltage drop as well as higher voltage, high
current systems needing low power dissipation. They
are a robust defense against overloads, short-circuits,
voltage surges and excessive inrush current.
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Overvoltage events are limited by internal cutoff
circuits, with multiple device options to choose the
overvoltage threshold.
The device provides a circuit-breaker response to
overcurrent conditions. The overcurrent limit (circuit-
breaker threshold) and fast-trip (short-circuit)
threshold can be set with a single external resistor.
The devices intelligently manage the overcurrent
response by distinguishing between transient events
and actual faults, thereby allowing the system to
function uninterrupted during line and load transients
without compromising on the robustness of the
protection against faults. The device can be
configured to stay latched off or retry automatically
after a fault shutdown. The number of auto-retries as
well as the retry delay are configurable with
capacitors. This enables remote systems to
automatically recover from temporary faults while
ensuring that power supplies are not stressed
indefinitely due to a persistent fault.
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– File no. E339631
– RILIM ≥ 182 Ω
IEC 62368 CB Certification
Small footprint: 4-mm × 4-mm QFN package
The TPS25980x devices are available in a small 4
mm × 4 mm QFN package. The devices are
characterized for operation over a junction
temperature range of –40°C to 125°C.
•
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Device Information (1)
2 Applications
PART NUMBER
PACKAGE
BODY SIZE (NOM)
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Hot-Swap, hot-plug
Server standby rail, PCIe riser, add-on card and
fan module protection
TPS25980x
QFN (24)
4.0 mm × 4.0 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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Routers and switches optical module protection
Industrial PC
Digital TV
TPS25980
Power
Supply
IN
OUT
VPG
RPG
LDSTRT
RVL1
EN/UVLO
NRETRY
PG
IMON
CL
RL
CIN
RETRY_DLY
dVdt
*
*
CNRETRY
CLDSTRT
RVL2
ILIM
RILIM
GND ITIMER
CdVdt
*
CRETRY_DLY
RIMON
*
CITIMER
*
Optional components for extended functionality
Simplified Schematics
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.
Copyright © 2020 Texas Instruments Incorporated
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