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TPS3806I33-Q1

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Automotive, dual-voltage detector with adjustable hysteresis

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Data sheet

TPS3806I33-Q1

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 3 Features Undervoltage monitor only Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 3 Features Undervoltage monitor only Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.003 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Supply voltage (min) (V) 1.3 Supply voltage (max) (V) 6 Rating Automotive Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • 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
  • Dual Voltage Detector With Adjustable Hysteresis, 3.3-V Adjustable
    and 2-V Adjustable
  • Assured Reset at VDD = 0.8 V
  • Supply Current: 3 µA Typical at VDD = 3.3 V
  • Independent Open-Drain Reset Outputs
  • 6-Pin SOT-23 Package
  • 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
  • Dual Voltage Detector With Adjustable Hysteresis, 3.3-V Adjustable
    and 2-V Adjustable
  • Assured Reset at VDD = 0.8 V
  • Supply Current: 3 µA Typical at VDD = 3.3 V
  • Independent Open-Drain Reset Outputs
  • 6-Pin SOT-23 Package

The TPS3806I33-Q1 integrates two independent voltage detectors for battery voltage monitoring. During power on, the device asserts RESET and RSTSENSE when supply voltage VDD or the voltage at the LSENSE input becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD and LSENSE, keeping RESET and RSTSENSE active as long as VDD and LSENSE remain below the threshold voltage, VIT. As soon as VDD or LSENSE rises above the threshold voltage VIT, the device deasserts RESET or RSTSENSE, respectively. The TPS3806I33-Q1 device has a fixed-sense threshold voltage VIT set by an internal voltage divider at VDD and an adjustable second-LSENSE input. In addition, one can set an upper voltage threshold at HSENSE to allow a wide adjustable
hysteresis window.

The devices are available in a 6-pin SOT-23 package. Characterization of the TPS3806I33-Q1 device is for operation over a temperature range of –40°C to 125°C.

The TPS3806I33-Q1 integrates two independent voltage detectors for battery voltage monitoring. During power on, the device asserts RESET and RSTSENSE when supply voltage VDD or the voltage at the LSENSE input becomes higher than 0.8 V. Thereafter, the supervisory circuit monitors VDD and LSENSE, keeping RESET and RSTSENSE active as long as VDD and LSENSE remain below the threshold voltage, VIT. As soon as VDD or LSENSE rises above the threshold voltage VIT, the device deasserts RESET or RSTSENSE, respectively. The TPS3806I33-Q1 device has a fixed-sense threshold voltage VIT set by an internal voltage divider at VDD and an adjustable second-LSENSE input. In addition, one can set an upper voltage threshold at HSENSE to allow a wide adjustable
hysteresis window.

The devices are available in a 6-pin SOT-23 package. Characterization of the TPS3806I33-Q1 device is for operation over a temperature range of –40°C to 125°C.
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* Data sheet TPS3806I33-Q1 Dual Voltage Detector with Adjustable Hysteresis datasheet (Rev. A) 26 Apr 2013
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019

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