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TPS25921LDR Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS25921LDR
Description  Precise Current Limit and Over Voltage Protection
Download  38 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS25921LDR Fiches technique(HTML) 1 Page - Texas Instruments

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V(IN)
V(OUT)
FLTb
I_IN
TIME = 20 s/div
m
90mO
IN
OUT
ENUV
SS
GND
TPS25921x
ILIM
OVP
4.5 to 18 V
V(IN)
FLT
Load
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS25921A, TPS25921L
SLVSCE1C – AUGUST 2014 – REVISED NOVEMBER 2015
TPS25921x 4.5V - 18V eFuse with Precise Current Limit and Over Voltage Protection
1 Features
3 Description
The TPS25921 is a compact, feature rich eFuse with
1
4.5 V – 18 V Operating Voltage, 20 V (Max)
a full suite of protection functions. The wide operating
90 m
Ω RDS(ON) (Typical)
voltage allows control of many popular DC buses.
0.4 A to 1.6 A Adjustable Current Limit
The precise ±2% current limit, at room temperature,
provides excellent accuracy making the TPS25921
±2% Accurate ILIMIT at 1A at 25°C
well suited for many system protection applications.
±3% Overvoltage, Undervoltage Threshold
Load, source and device protection are provided with
Programmable dVO/dt Control
multiple programmable features including overcurrent,
Fault Output for Thermal Shutdown, UVLO and
overvoltage and undervoltage. 3% threshold accuracy
OVP
for UV and OV, ensures tight supervision of bus
-40°C to 125°C Junction Temperature Range
voltages, eliminating the need for supervisor circuitry.
Fault flag output (FLT) is provided for system status
Auto-Retry and Latch-Off Versions
monitoring and down stream load control.
UL2367 Recognized - File No. E169910
For hot-plug-in boards, TPS25921 provides in-rush
UL60950 - Safe during Single Point Failure Test
current control and programmable output ramp-rate.
Output ramp rate is programmable using a capacitor
2 Applications
at soft-start (SS) pin, for maximum design flexibility.
White Goods, Appliances
Device Information(1)
Set Top Boxes, DVD and Gaming Consoles
PART NUMBER
PACKAGE
BODY SIZE (NOM)
HDD and SSD drives
TPS25921A
Smart Meters, Gas Analyzers
SOIC
4.90mm x 3.91mm
TPS25921L
Smart Load Switch
(1) For all available packages, see the orderable addendum at
USB Switch
the end of the datasheet.
Adapter Power Devices
4 Application Schematic
12V Short Circuit Response
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.


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