Features for the TPS1HC100-Q1

• Single-channel smart high-side power switch for 12-V automotive systems with full diagnostics
  • Open-drain status output
  • Current sense analog output
• Wide operating voltage 3 to 28 V
• Low standby current, < 0.5 µA at 85°C
• Operating junction temperature, –40 to 150°C
• 1.8-V, 3.3-V and 5-V logic compatible
• Fault sense voltage scaling for ADC protection
• Programmable current limit accuracy ±18% at 1.9 A
• High-accuracy current sense, ±6% at 1 A
• Protection
  • Overload and short-circuit protection
  • Inductive load negative voltage clamp
  • Undervoltage Lockout (UVLO) protection
  • Thermal shutdown and swing with self recovery
  • Loss of GND, loss of supply protection
  • Reverse battery protection with external components
• Diagnostic
  • On- and off-state output open-load and short-to-battery detection
  • Overload and short to ground detection
  • Thermal shutdown and swing detection
• Qualifications
  • AEC-Q100 automotive qualified for grade 1 temperature
  • Functional Safety-Capable
  • Tested according to AECQ100-12 Grade A, 1 million times short-to-GND test
  • Electrical transient disturbance immunity certification of ISO7637-2 and ISO16750-2
• 14-pin thermally-enhanced PWP package

Description for the TPS1HC100-Q1

The TPS1HC100-Q1 device is a fully protected high-side power switch, with integrated NMOS power FET and charge pump, targeted for the intelligent control of various loads. Accurate current sense and programmable current limit features differentiate it from the market.

Low logic high threshold, VIH, of 1.5 V on the input pins allow use of MCUs GPIO signals to 1.8 V. High-accuracy current sensing provides a better real-time monitoring effect and more accurate diagnostics without further calibration. The external high-accuracy current limit allows setting the current limit value by application. The device highly improves the reliability of the system by effectively clamping the inrush current under start-up or short-circuit conditions. The TPS1HC100-Q1 device can be used as a high-side power switch for a wide variety of resistive, inductive, and capacitive loads, including low-wattage bulbs, LEDs, relays, solenoids, and heaters.