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TPS25940LRVCT Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS25940LRVCT
Description  18V eFuse with True Reverse Blocking and DevSleep Support for SSDs
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS25940LRVCT Fiches technique(HTML) 1 Page - Texas Instruments

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TPS25940x
IN
OUT
EN/UVLO
OVP
DEVSLP
dVdT
GND
FLT
PGOOD
PGTH
IMON
ILIM
To Load
2.7 to 18 V
RTOTAL =
42 m:
V(IN)
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TPS25940A, TPS25940L
SLVSCF3A – JUNE 2014 – REVISED MARCH 2015
TPS25940x 2.7 – 18V eFuse with True Reverse Blocking and DevSleep Support for SSDs
1 Features
3 Description
The TPS25940 eFuse Power Switch is a compact,
1
2.7 V – 18 V Operating Voltage, 20 V (Max)
feature rich power management device with a full
42 m
Ω RON (Typical)
suite of protection functions, including a low power
0.6 A to 5.3 A Adjustable Current Limit (±8%)
DevSleep™ mode that supports compliance with the
SATA™ Device Sleep standard. The wide operating
IMON Current Indicator Output (±8%)
range allows control of many popular DC bus
200
μA Operating IQ (Typical)
voltages. Integrated back to back FETs provide
95
μA DevSleep Mode IQ (Typical)
bidirectional current control making the device well
suited for systems with load side holdup energy that
15
μA Disabled IQ (Typical)
must not drain back to a failed supply bus.
±2% Overvoltage, Undervoltage Threshold
Load, source and device protection are provided with
Reverse Current Blocking
many programmable features including overcurrent,
1
μs Reverse Voltage Shutoff
dVo/dt
ramp
and
overvoltage,
undervoltage
Programmable dVo/dt Control
thresholds.
For
system
status
monitoring
and
Power Good and Fault Outputs
downstream
load
control,
the
device
provides
PGOOD, FLT and precise current monitor output.
-40°C to 125°C Junction Temperature Range
Precise
programmable
undervoltage,
overvoltage
UL 2367 Recognized
thresholds and the low IQ DevSleep mode simplify
File No. 169910
SSD power management design.
RILIM ≥ 20 kΩ (4.81 A max)
The TPS25940 monitors V(IN) and V(OUT) to provide
UL60950 - Safe during Single Point Failure Test
true reverse current blocking when V(IN) < (V(OUT) - 10
mV). This function supports swift changeover to a
Open/Short ILIM detection
boosted voltage energy storage element in systems
where backup voltage is greater than bus voltage.
2 Applications
PCIe/SATA/SAS HDD and SSD Drives
Device Information(1)
PART NUMBER(2)
PACKAGE
BODY SIZE (NOM)
Enterprise and Micro Servers
TPS25940A
Smart Load Switch
WQFN (20)
3.00 mm x 4.00 mm
TPS25940L
Set-Top-Box (STB), DTVs and Game Consoles
(1) For all available packages, see the orderable addendum at
RAID Cards - Holdup Power Management
the end of the datasheet.
Telecom Switches and Routers
(2) TPS25940L = Latched, TPS25940A = Auto Retry
Adapter Powered Devices
4 Simplified Schematic
Power Fail Detection and Blocking
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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