TPS281C30
SLVSGD3A – DECEMBER 2022 – REVISED JUNE 2023
TPS281C30x, 60-V Tolerant, 30-mΩ, Single-Channel Smart High-Side Switch
1 Features
3 Description
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Wide operating voltage range: 6 V to 36 V
64-V DC tolerance when disabled
Low RON: 30-mΩ typ, 55-mΩ max
Improve system level reliability through adjustable
current limiting
– Version A: 1 A to 5 A (fixed 0.5 A)
– Version B: 2 A to 10 A (fixed 0.5 A)
Accurate current sensing
– ±4% at 1 A in standard sense mode
– ±12.5% at 6 mA in high accuracy sense mode
Integrated inductive discharge clamp > 65 V
Low standby current of < 0.5 µA
Low quiescent current (Iq) of < 1.5 mA
Functional safety capable
TPS281C30x is a single channel smart high-side
switch designed to meet the requirements of industrial
control systems. The low RON (30 mΩ) minimizes
device power dissipation, driving a wide range of
output load current up to 6-A DC and the 64-V DC
tolerance improves system robustness.
The device integrates protection features such as
thermal shut down, output clamp, and current limit.
These features improve system robustness during
fault events such as short circuit. TPS281C30x
implements an adjustable current limiting circuit that
improves the reliability of the system by reducing
inrush current when driving large capacitive loads
and minimizing overload current. In order to drive
high inrush current loads such as lamps or fast
charging capacitive loads, TPS281C30x implements
an inrush current time period with a higher level of
allowed current. The device also provides an accurate
load current sense that allows for improved load
diagnostics such as overload and open-load detection
enabling better predictive maintenance.
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Operating junction temperature: –40 to 125°C
Input control: 1.8-V, 3.3-V, and 5-V logic
compatible
Integrated fault sense voltage scaling for ADC
protection
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Open-load detection in off-state
Thermal shutdown and swing detection
14-pin thermally-enhanced TSSOP package
20-pin thermally-enhanced QFN package
TPS281C30x is available in a small 14-pin, 4.4-mm
× 5-mm HTSSOP leaded package with 0.65-mm pin
pitch and 20-pin, 5-mm × 5-mm QFN with 0.65-mm
pin pitch minimizing the PCB footprint.
2 Applications
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Digital output module
Safe torque off (STO)
Holding brake
General resistive, inductive, and capacitive loads
Package Information
PART NUMBER
PACKAGE(1)
PCB SIZE (NOM)
5.00 mm × 5.00 mm
5.00 mm × 6.40 mm
QFN (20)
HTSSOP (14)
TPS281C30x
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
VS
+24V Field VS
D1*
Cin
Off-State
Open
Load
Detection
EN
Gate
Driver
VOUT
Cout
D2*
FAULT
Current Limit
DIAG_EN
To Inductive,
Capacitive and
Resistive Load
ILIM
Thermal
Shutdown
OL_ON
SNS
Current Sense
GND
RSNS
RILIM
*TVS for Surge Suppression Only
Typical Application Schematic
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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