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Product details

Parameters

Number of supplies monitored 1, 2 Threshold voltage 1 (Typ) (V) 0.8 Features Undervoltage and Overvoltage Monitor, Manual Reset, Sense Delay, Reset Time Delay, Wide Input Voltage Reset threshold accuracy (%) 1.5 Output driver type/reset output Active-low, Open-drain Time delay (ms) Programmable Rating Automotive Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

WSON (DSK) 10 open-in-new Find other Supervisor & reset ICs

Features

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C7B
  • VDD: 2.7 V to 65 V (VPOR=1.4V)
  • SENSE and RESET pins are 65V graded
  • Low supply current: 1uA (Typ.)
  • Flexible voltage options Table 13-2
    • 2.7V to 36V (1.5% max accuracy)
    • 800 mV option (1% max accuracy)
  • Built-in hysteresis (VHYS)
    • Percentage options: 2% to 13% (1% steps)
    • Fixed options: VTH < 8V = 0.5V, 1V, 1.5V, 2V, 2.5V.
  • Programmable reset time delay
  • Programmable sense time delay
  • Manual reset feature
  • Output reset latching feature
  • Output topology:
    • Channel 1: Open-Drain or Push-Pull topologies
    • Channel 2: Open-Drain

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Description

High voltage supervisor with integrated voltage divider for low power and continuous car battery voltage monitoring. No compensation components required (only pull-up resistor), external capacitor for timing are optional to adjust voltage detection time (CTS) and release time (CTR). Sense pins are high impedance and can support external resistors if needed by the application. This device has large hysteresis voltage options to ignore cold/warm crank, start stop and other common car battery transients.

CTRx pins also work as manual reset (CTR1/MR, CTR2/MR) that can be used as a hard reset debugging mechanism or as digital mute for Telematics and Infotainment applications.

Both channels have Open Drain, Active high and Active low options. Channel 1 has Push-pull output option capable to drive an external FET/BJT.

Small WSON package with 100µm height Wettable flanks to facilitate Automatic Optical Inspection (AOI) and long pads facilitate low resolution X-Ray inspection. Central pad is non-conductive to increase the creepage between VDD and GND per guidelines in IEC 60664

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Preproduction samples are available (PS37A010122DSKRQ1). Request now

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet TPS37x-Q1 (65 V & 2uA) Over & Under Voltage Detector with Delay Function datasheet Sep. 30, 2020
More literature TPS37AQ1EVM EU RoHS Declaration of Conformity (DoC) Sep. 16, 2020
User guide TPS37AQ1EVM User's Guide Aug. 27, 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
49
Description

The TPS37A-Q1 evaluation module (EVM) is a platform for evaluating the TPS37x-Q1 and TPS38x-Q1 family of products. These products offer operation up to 65 V while maintaining low quiescent current, and offer adjustable voltage thresholds, adjustable reset, sense time delays, and configurable manual (...)

Features
  • 10-pin compact DSK package
  • Programmable reset and sense delay
  • Overvoltage and undervoltage monitor
  • Open-drain/push-pull output topology
  • Configurable manual reset

Design tools & simulation

SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SON (DSK) 10 View options

Ordering & quality

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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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