TPS3802 Small Supply Voltage Supervisors with Manual Reset | TI.com

TPS3802 (ACTIVE)

Small Supply Voltage Supervisors with Manual Reset

Small Supply Voltage Supervisors with Manual Reset - TPS3802
Datasheet
 

Description

The TPS380x family of supervisory circuits monitor supply voltages to provide circuit initialization and timing supervision, primarily for DSPs and other processor-based systems.

These devices assert a push-pull RESET signal when the SENSE (adjustable version) or VDD (fixed version) drops below a preset threshold. The RESET output remains asserted for the factory programmed delay time after the SENSE or VDD return above its threshold.

The TPS380x devices, except the TPS3801-01, incorporate a manual reset input (MR). A low level at MR causes RESET to become active.

The TPS380x uses a precision reference to achieve an overall threshold accuracy of 2%—2.5%. These devices are available in a 5-pin SC-70 package, which is only about half the size of a 5-pin SOT-23 package.

The TPS380x devices are fully specified over a temperature range of –40°C to +85°C.

Features

  • Small, 5-Pin SC-70 (SOT-323) Package
  • Supply Current of 9 µA
  • Power-On Reset Generator With Fixed Delay Time
    • TPS3800 = 100 ms
    • TPS3801 = 200 ms
    • TPS3802 = 400 ms
  • Precision Supply Voltage Monitor 1.8 V, 2.5 V,
    2.7 V, 3 V, 3.3 V, 5 V, and Adjustable
  • Manual Reset Input (Except TPS3801-01)
  • Temperature Range:  –40°C to +85°C
  • APPLICATIONS
    • Applications Using DSPs, Microcontrollers, or Microprocessors
    • Wireless Communication Systems
    • Portable/Battery-Powered Equipment
    • Programmable Controls
    • Intelligent Instruments
    • Industrial Equipment
    • Notebook/Desktop Computers
    • Automotive Systems

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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)
TPS3802 TLV803 TPS3800G27 TPS3801 TPS3803 TPS3805H33
2.64
2.93    
2.25
2.64
2.93
4.38    
2.5     Adjustable
1.71
2.25
2.64
2.93
4
4.55    
Adjustable
1.4    
3.05    
1     1     1     1     1     2    
6     6     6     6     6     6    
2     1.1     2     2     1.3     1.3    
Active-low
Push-pull    
Active-low
Open-drain    
Active-low
Push-pull    
Active-low
Push-pull    
Active-low
Open-drain    
Active-low
Push-pull    
400     200     100     200     0     0    
Active-low enable
Manual reset    
Ease-of-use     Active-low enable
Manual reset    
Active-low enable
Manual reset    
Ease-of-use     Ease-of-use    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 125     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
None     None     None     None     None     None