TPS2640
TPS2640
www.ti.com
SLVSFQ6 – NOVEMBER 2020
SLVSFQ6 – NOVEMBER 2020
TPS26400 42-V, 2-A eFuse With Integrated Reverse Input Polarity Protection
1 Features
3 Description
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4.2-V to 42-V operating voltage, 45-V absolute
maximum
Integrated reverse input polarity protection down to
–42 V
– Zero additional components required
Integrated back to back MOSFETs with 150-mΩ
total RON
0.1-A to 2.23-A adjustable current limit (±5%
accuracy at 1 A)
Load protection during Surge (IEC 61000-4-5) with
suitable TVS
IMON current indicator output (±8.5% accuracy)
Low quiescent current, 300-μA in operating, 20-μA
in shutdown
The TPS26400 devices are compact, feature rich high
voltage eFuses with a full suite of protection features.
The wide supply input range of 4.2 to 42 V allows
control of many popular DC bus voltages. The device
can withstand and protect the loads from positive and
negative supply voltages up to ±42 V. Integrated back
to back FETs provide reverse current blocking feature
making the device suitable for systems with output
voltage holdup requirements during power fail and
brownout conditions. Load, source and device
protection are provided with many adjustable features
including overcurrent, output slew rate and
overvoltage, undervoltage thresholds. The internal
robust protection control blocks along with the high
voltage rating of the TPS26400 helps to simplify the
system designs for Surge protection.
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Adjustable UVLO, OVP cut off, output slew rate
control
A shutdown pin provides external control for enabling
and disabling the internal FETs as well as placing the
device in a low current shutdown mode. For system
status monitoring and downstream load control, the
device provides fault and precise current monitor
output. The MODE pin allows flexibility to configure
the device between the three current-limiting fault
responses (circuit breaker, latch off, and Auto-retry
modes).
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Reverse current blocking
Available in easy-to-use 16-pin HTSSOP and 24-
pin VQFN packages
Selectable current-limiting fault response options
(auto-retry, latch Off, circuit breaker modes)
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2 Applications
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HMI Power protection in Factory Automation
Fire Safety Systems
Electronic Thermostats and Video Doorbells
Industrial PCs
The device is available in a 5-mm × 4.4-mm 16-pin
HTSSOP as well as 5-mm x 4-mm 24-pin VQFN
package and are specified over a –40°C to +125°C
temperature range
Elevators
Device Information
PART NUMBER
TPS26400
PACKAGE(1)
HTSSOP (16)
VQFN (24)
BODY SIZE (NOM)
5.00 mm × 4.40 mm
5.00 mm × 4.00 mm
TPS26400
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
IN: 4.5 V - 36 V
IN
OUT
OUT
CIN
COUT
Health Monitor
ON/OFF Control
R1
RFLTb
150 mꢀ
R4
>90 kΩ
UVLO
FLT
TPS26400
OVP
R2
SHDN
OUT_OVP(1)
dVdT
IMON
ILIM
Load
Monitor
MODE
RTN
GND
R5
R3
RIMON
CdVdT
RILIM
Simplified Schematic
Reverse Polarity Protection with –42-V Input
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.
Product Folder Links: TPS2640
Copyright © 2020 Texas Instruments Incorporated
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