INA203-Q1

• Qualified for Automotive Applications
• Current Sense Amplifier
  • Common-Mode Range: –16 V to +80 V
  • Accuracy: 3.5% (Maximum) Over Temperature
  • Bandwidth: 500 kHz
  • Gain: 20 V/V
• Integrated Dual Comparators:
  • Comparator 1 With Latch
  • Comparator 2 With Optional Delay
• Quiescent Current: 1.8 mA
• Latch-Up Performance Meets 100 mA Per AEC-
  Q100, Level I
• Packages: TSSOP-14
• APPLICATIONS
  • Electric Power Steering (EPS) Systems
  • Body Control Modules
  • Brake Systems
  • Electronic Stability Control (ESC) Systems

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The INA203-Q1 is a unidirectional current-shunt monitor (also called a current sense amplifier) with voltage output, dual comparators, and voltage reference. The INA203-Q1 can sense drops across shunts at common-mode voltages from –16 V to +80 V. The INA203-Q1 is available with 20-V/V gain with up to 500-kHz bandwidth.

The INA203-Q1 incorporates two open-drain comparators with internal 0.6-V references and also provides a 1.2-V reference output. The comparator references can be overridden by external inputs. Comparator 1 includes a latching capability, and Comparator 2 has a user-programmable delay.

The INA203-Q1 operates from a single 2.7 V to 18 V supply. It is specified over the extended operating temperature range of –40°C to +125°C.