TPS272C45 Series
36-V, 45-mΩ, 3-A, 2-ch, Industrial high-side switch with adjustable current limit
Manufacturer: Texas Instruments
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Key Features
• Low R DS(on) (45-mΩ typical) high-side switch for 24-V industrial applicationsWide DC operating voltage range: 6 V to 36 VLow quiescent current (Iq) of 0.5 mA per channel (typical) from 24-V supplyFixed (5.8 A) andadjustable (0.7 A to 4 A with external resistor) current limitingDriveinductive, capacitive, and resistive loadsIntegrated output clamp to support inductive load dischargeCapacitive load drive minimizing peak inrush current through dual threshold current limitingRobust output protectionThermal shutdownProtection against short to ground eventsConfigurable fault handlingEnhanced diagnostic featureOutput load current measurementOpen load (off-state) detectionPackage: 24-pin QFN (5 mm × 4 mm)UL 2367 RecognizedFile No. 169910Functional Safety-CapableDocumentation available to aid functional safety system designLow R DS(on) (45-mΩ typical) high-side switch for 24-V industrial applicationsWide DC operating voltage range: 6 V to 36 VLow quiescent current (Iq) of 0.5 mA per channel (typical) from 24-V supplyFixed (5.8 A) andadjustable (0.7 A to 4 A with external resistor) current limitingDriveinductive, capacitive, and resistive loadsIntegrated output clamp to support inductive load dischargeCapacitive load drive minimizing peak inrush current through dual threshold current limitingRobust output protectionThermal shutdownProtection against short to ground eventsConfigurable fault handlingEnhanced diagnostic featureOutput load current measurementOpen load (off-state) detectionPackage: 24-pin QFN (5 mm × 4 mm)UL 2367 RecognizedFile No. 169910Functional Safety-CapableDocumentation available to aid functional safety system design
Description
AI
The TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low on-resistance (R DS(on) of 45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. The device provides 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.
The TPS272C45 device implements an adjustable threshold 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.
The TPS272C45 device is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.
The TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low on-resistance (R DS(on) of 45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. The device provides 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.
The TPS272C45 device implements an adjustable threshold 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.
The TPS272C45 device is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.