Diodes IncorporatedZXCT199QA1DW-7Power Supply Controllers and Monitors

Monitor 2.7V to 26V Automotive 6-Pin SOT-363 T/R

26V, Zero-Drift, Bidirectional, High-Precision Current Monitor

The automotive-compliant ZXCT199Q current monitor family is comprised of single-stage instrumentation amplifiers designed to accurately measure very small sense voltages across a wide range of common-mode voltages. Its applications include current sensing of load/rail currents in automotive motor control, charging, and battery charging equipment (BCE) applications.

The ZXCT199Q family’s low offset voltage with zero-drift architecture enables it to achieve current sensing with maximum drops across the shunt resistor, to as low as 10mV full scale, thereby allowing the use of small-value sense resistors to monitor large currents.

The ZXCT199Q devices have three fixed voltage gain options in 50V/V, 100V/V, and 200V/V, measuring a voltage across a sense resistor at common-mode voltages from -0.1V to 26V, independent of supply voltage.

The ZXCT199Q series operates from a 2.7V to 26V power supply, with a maximum supply current of 100μA with common-mode voltages independent of its supply voltage. All versions have been AEC-Q100 grade 1 qualified, support a -40ºC to +125ºC temperature range, and are available in the very small industry-standard SOT363 package.



Key Features and Benefits

  • DIODES Advantage:
  • •  Offset Voltage as Low as 80µv
  • •  Minimizes errors when using low value sense resistors
  • •  Gain Error as Low as 0.8%
  • •  Maintains accurate gain control across temperature and common mode voltage
  • •  Wide -0.1 to 26V Common-Mode Voltage Range
  • •  Accurately measures high-side and low-side currents, including short-circuited loads
  • •  Wide 2.7 to 26V Supply Voltage Range
  • •  Provides options for powering separately or from monitored supply
  • •  Robust ESD Capability (HBM: 5kV, CDM: 1.5kV)
  • •  Improves system reliability


Applications

  • Automotive Load and Rail Current Measurement in:
  • •  Vehicle motor controls
  • •  Vehicle e-compressors
  • •  Vehicle ADAS
  • •  EV OBC, BMS, ESP, high voltage DC-DC
  • •  Vehicle valve controls
  • •  Vehicle body controls
  • •  Wireless charging
  • •  Battery charging and discharging



Related Products

ZXCT199Q


Import TariffMay apply to this part if shipping to the United States

3,000 parts: Ships in 2 days

    Total$0.77Price for 1

    • Ships in 2 days

      Ships from:
      United States of America
      Date Code:
      2307+
      Manufacturer Lead Time:
      8 weeks
      Minimum Of :
      1
      Maximum Of:
      3000
      Country Of origin:
      China
         
      • Price: $0.7710
      Spliced leader/trailer tape per EIA standards Leader tape:400mm=15.75'; Trail tape:160mm=6.3' more information
    • Ships in 2 days

      Ships from:
      United States of America
      Date Code:
      2307+
      Manufacturer Lead Time:
      8 weeks
      Country Of origin:
      China
      • In Stock: 3,000 parts
      • Price: $0.7710

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