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45-mΩ, 4-A, dual-channel industrial smart high-side switch with diagnostics

Inventory: 267  
Limit:  5

Quality information

Lead finish / Ball material Call TI
MSL rating / Peak reflow Call TI
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
VQFN (RHF) | 24 3,000 | LARGE T&R
-40 to 125
Package | Pins VQFN (RHF) | 24
Package qty | Carrier: 3,000 | LARGE T&R
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the TPS272C45

  • Low RON (45-mΩ typical) high-side switch for 24-V industrial applications
  • Wide DC operating voltage range: 6 V to 36 V
  • Low quiescent current (Iq) of 0.5 mA / channel from 24-V supply
  • Fixed (5.8 A) and adjustable (0.5 A to 4 A) current limiting
  • Dual current limit threshold for inrush current management
  • Drive inductive, capacitive, and resistive loads
    • Integrated output clamp to support inductive load discharge
    • Capacitive load drive minimizing peak inrush current through current limiting
  • Robust output protection
    • Thermal shutdown
    • Protection against short to ground events
    • Configurable fault handling
  • Enhanced diagnostic feature
    • Output load current measurement
    • Open load (off-state) detection
  • Package: 24-pin QFN (5 mm × 4 mm)

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Description for the TPS272C45

TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low RDSON (45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. TPS272C45A provides for an additional low voltage supply (3.3 V to 5 V) input pin to minimize no-load power dissipation. The device integrates protection features such as thermal shut down, output clamp, and overcurrent limit. These features improve system robustness during fault events such as short circuit.

TPS272C45 implements an adjustable (0.5 A to 4 A) current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. The device also implements a configurable inrush current time period with a higher level of allowed current to drive high inrush current loads like lamps or for fast charging of capacitive loads. The device also provides an accurate load current sense that allows for improved load diagnostics enabling better predictive maintenance.

TPS272C45 is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.


Qty Price (USD)
1-99 4.242
100-249 3.717
250-999 2.606
1,000+ 2.1