TPS386000-Q1 Automotive Quad Supply Voltage Supervisors with Programmable Delay and Watchdog Timer | TI.com

TPS386000-Q1 (ACTIVE) Automotive Quad Supply Voltage Supervisors with Programmable Delay and Watchdog Timer

 

Description

The TPS386000-Q1 family of voltage supervisors can monitor four power rails that are greater than 0.4 V and one power rail less than 0.4 V (including negative voltage) with a 0.25% (typical) threshold accuracy. Each of the four supervisory circuits (SVS-n) assert a RESETn or RESETn output signal when the SENSEm input voltage drops below the programmed threshold. With external resistors, the threshold of each SVS-n can be programmed (where n = 1, 2, 3, 4 and m = 1, 2, 3, 4L, 4H).

Each SVS-n has a programmable delay before releasing RESETn or RESETn. The delay time can be set from 1.4 ms to 10 s through the CTn pin connection. Only SVS-1 has an active-low manual reset (MR) input; a logic-low input to MR asserts RESET1 or RESET1.

SVS-4 monitors the threshold window using two comparators. The extra comparator can be configured as a fifth SVS to monitor negative voltage with voltage reference output VREF.

The TPS386000-Q1 device has a very low quiescent current of 12 µA (typical) and is available in a small, 4-mm × 4-mm, VQFN-20 package.

Features

  • Qualified for Automotive Applications
  • AEC Q100 Test Guidance 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
  • Four Complete SVS Modules on one Silicon
    Platform
  • Programmable Delay Time: 1.4 ms to 10 s
  • Very Low Quiescent Current: 12 µA Typical
  • Threshold Accuracy: 0.25% Typical
  • SVS-1: Manual Reset (MR) Input
  • SVS-1, 2, 3: Adjustable Threshold Down to 0.4 V
  • SVS-4:
    • Adjustable Threshold at Any Positive or
      Negative Voltage with VREF (1.2 V)
    • Window Comparator
  • Watchdog Timer with Dedicated Output
  • Well-Controlled RESETn Output During Power-Up
  • Open-Drain RESETn and WDO
  • Package: 4-mm × 4-mm, 20-pin VQFN

Parametrics

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Part number Order Threshold voltage 1 (Typ) (V) Number of supplies monitored VCC (Max) (V) VCC (Min) (V) Output driver type/reset output Time delay (ms) Features Rating Operating temperature range (C) Watchdog timer WDI (sec)
TPS386000-Q1 Order now Adjustable     4     6.5     1.8     Active-low
Open-drain    
20
30
Programmable    
Active-low enable
Manual reset
Negative voltage monitoring
Undervoltage and overvoltage monitor
Watchdog timer
Safety documentation    
Automotive     -40 to 125     0.6    
TPS386000 Order now Adjustable     4     6.5     1.8     Active-low
Open-drain    
20
300
Programmable    
Active-low enable
Manual reset
Negative voltage monitoring
Undervoltage and overvoltage monitor
Watchdog timer
Safety documentation    
Catalog     -40 to 125     0.6