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Texas Instruments TPS281C30 High-Side Switch

Texas Instruments TPS281C30 High-Side Switch is a single-channel smart high-side switch designed to meet the requirements of industrial control systems. This switch operates at 60V tolerant, 30mΩ low on-resistance, and 6A continuous load current. The TPS281C30 switch protection features include thermal shutdown, output clamp, and current limit. This device operates at -40°C to 125°C temperature range. The TPS281C30 switch also provides an accurate load current sense that allows for improved load diagnostics, such as overload and open-load detection enabling better predictive maintenance. This high-side switch is used in digital output module, Safe Torque Off (STO), holding brake, and general resistive, inductive, and capacitive loads.

Features

6V to 36V Wide operating voltage range
64V DC tolerance when disabled
30mΩ typical, 55mΩ maximum
Improve system-level reliability through adjustable current limiting:
- Version A: 1A to 5A (fixed 0.5A)
- Version B: 2A to 10A (fixed 0.5A)
Accurate, current sensing:
- ±4% @1A in standard sense mode
- ±12.5% @6mA in high accuracy sense mode
Integrated inductive discharge clamp >65V
Low standby current of <0.5µA
Low quiescent current (I_q) of <1.5mA
Functional safety capable
-40°C to 125°C operating junction temperature range

Input control:
- 1.8V, 3.3V, and 5V logic compatible
Integrated fault sense voltage scaling for ADC protection
Open-load detection in off-state
Thermal shutdown and swing detection
14-pin thermally-enhanced TSSOP package
20-pin thermally-enhanced QFN package

Applications

Digital output module
Safe Torque Off (STO)

Holding brake
General resistive, inductive, and capacitive loads

Texas Instruments TPS281C30 High-Side Switch

Features

Applications

Functional Block Diagram

Application Circuit Diagram

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