TPS3890-Q1 Automotive Low-Quiescent-Current 1% Accurate Supervisor With Programmable Delay | TI.com

TPS3890-Q1 (ACTIVE)

Automotive Low-Quiescent-Current 1% Accurate Supervisor With Programmable Delay

Automotive Low-Quiescent-Current 1% Accurate Supervisor With Programmable Delay  - TPS3890-Q1
 

Description

The TPS3890-Q1 is a precision voltage supervisor with low-quiescent current that monitors system voltages as low as 1.15 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds. The TPS3890-Q1 family uses a precision reference to achieve 1% threshold accuracy. The reset delay time can be user-adjusted between 25 µs and 30 s by connecting the CT pin to an external capacitor. The TPS3890-Q1 has a very low quiescent current of 2.1 µA and is available in a small 1.5-mm × 1.5-mm package, making the device well-suited for battery-powered and space-constrained applications. The device is fully specified over a temperature range of –40°C to +125°C (TJ).

Features

  • 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 2
    • Device CDM ESD Classification Level C4B
  • Power-On-Reset (POR) Generator with Adjustable Delay Time: 25 µs to 30 s
  • Very Low Supply Current: 2.1 µA (Typical)
  • High Threshold Accuracy: 1% (max)
  • Precision Hysteresis
  • Fixed and Adjustable Threshold Voltages:
    • Fixed Thresholds for Standard Rails:
      1.2 V to 5 V
    • Adjustable Down to 1.15 V
  • Manual Reset (MR) Input
  • Open-Drain RESET Output
  • Temperature Range: –40°C to +125°C
  • Package: 1.5-mm × 1.5-mm WSON

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Supervisor & reset ICs

 
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)
TPS3890-Q1 TPS3808-Q1
Adjustable
1.15
1.44
1.73
2.4
2.89
2.93
3.066
3.17
4.4
4.65
4.8    
Adjustable
1.12
1.16
1.4
1.67
2.79
3.07
4.65    
1     1    
5.5     6.5    
1.5     1.8    
Active-low
Open-drain    
Active-low
Open-drain    
Programmable     Programmable    
Active Low Enable
Manual Reset    
Active Low Enable
Manual Reset    
Automotive     Automotive    
-40 to 125     -40 to 125    
None     None