TPS1H000-Q1 Automotive, 40-V, 1-ohm Single-Channel Smart High-Side Switch |


Automotive, 40-V, 1-ohm Single-Channel Smart High-Side Switch



The TPS1H000-Q1 device is a fully protected single-channel high-side power switch with an integrated 1000-mΩ NMOS power FET.

An adjustable current limit improves system reliability by limiting the inrush or overload current. The high accuracy of the current limit improves overload protection, simplifying the front-stage power design. Configurable features besides current limit provide design flexibility in the areas of functionality, cost, and thermal dissipation.

The device supports full diagnostics with the digital status output. Open-load detection is available in both the ON- and OFF-states. The device supports operation with or without an MCU. Standalone mode allows use of the device in isolated systems.


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Single-Channel 1000-mΩ Smart High-Side Switch
  • Wide Operating Voltage: 3.4 V to 40 V
  • Low Standby Current: <500 nA
  • Adjustable Current Limit With External Resistor
    • ±15% When ≥150 mA
    • ±10% When ≥300 mA
  • Configurable Behavior After Current Limit
    • Holding Mode
    • Latch-Off Mode With Adjustable Delay Time
    • Auto-Retry Mode
  • Supports Standalone Operation Without an MCU
  • Protection:
    • Short-to-GND and Overload
    • Thermal Shutdown and Thermal Swing
    • Negative Voltage Clamp for Inductive Loads
    • Loss-of-GND and Loss-of-Battery
  • Diagnostics:
    • Overload and Short-to-GND Detection
    • Open-Load and Short-to-Battery Detection in ON or OFF State
    • Thermal Shutdown and Thermal Swing

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Parametrics Compare all products in Smart power switches

Number of Channels (#)
Vin (Min) (V)
Vin (Max) (V)
Ron @ 25C (Typ) (mOhms)
Current Limit Type
Current Limit (Min) (A)
Current Sense Accuracy
Shutdown Current (ISD) (Typ) (uA)
Operating Temperature Range (C)
TPS1H000-Q1 TPS1H100-Q1
1     1    
3.4     3.5    
40     40    
1000     80    
Digital Output
Programmable Current Limit    
Current Sense/Monitor
Digital Output
Thermal Shutdown
Under Voltage Lock Out    
Adjustable     Adjustable    
1     7    
N/A     +/-5mA @ 5mA
+/-30mA @ 1A    
0.5     0.5    
Automotive     Automotive    
-40 to 125     -40 to 125