TLV809 3-Pin Supply Voltage Supervisor with Active-Low, Push-Pull Output | TI.com

TLV809 (ACTIVE)

3-Pin Supply Voltage Supervisor with Active-Low, Push-Pull Output

3-Pin Supply Voltage Supervisor with Active-Low, Push-Pull Output - TLV809
Datasheet
 

Description

The TLV809 family of supervisory circuits provides circuit initialization and timing supervision, primarily for digital signal processors (DSPs) and processor-based systems.

During power-on, RESET is asserted when the supply voltage (VDD) becomes greater than 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage, VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time (td(typ) = 200 ms) starts after VDD rises above the threshold voltage, VIT. When the supply voltage drops below the VIT threshold voltage, the output becomes active (low) again. No external components are required. All devices in this family have a fixed sense-threshold voltage (VIT) set by an internal voltage divider.

The TLV803 has an active-low, push-pull RESET output. See the TLV803 for an open-drain RESET output and the TLV810 for a push-pull, active-high RESET output.

This product family is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 3-pin SOT-23 package. The TLV809 devices are characterized for operation over a temperature range of –40°C to +85°C.

Features

  • Precision Supply Voltage Monitor:
    2.5 V, 3 V, 3.3 V, 5 V
  • Power-On Reset Generator with a
    Fixed Delay Time of 200 ms
  • Supply Current: 9 µA (Typical)
  • Temperature Range: –40°C to +85°C
  • 3-Pin SOT-23 Package
  • Pin-for-Pin Compatible with the MAX809

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)
TLV809 MCP809 TLV803 TLV810 TLV853 TPS3809
2.25
2.64
2.93
4.55    
2.93     2.25
2.64
2.93
4.38    
2.25
2.64
2.93
4.38    
4.38     2.25
2.64
2.93
4.55    
1     1     1     1     1     1    
6     5.5     6     6     6     6    
2     1.2     1.1     1.1     1     2    
Active-low
Push-pull    
Active-low
Push-pull    
Active-low
Open-drain    
Active-high
Push-pull    
Active-low
Open-drain    
Active-low
Push-pull    
200     240     200     200     200     200    
Ease-of-use     Ease-of-use     Ease-of-use     Ease-of-use     Ease-of-use     Ease-of-use    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 105     -40 to 125     -40 to 125     -40 to 125     -40 to 85    
None     None     None     None     None     None