TLV809 3-pin voltage supervisor (reset IC) with active-low push-pull reset | TI.com

TLV809 (ACTIVE) 3-pin voltage supervisor (reset IC) with active-low push-pull reset

3-pin voltage supervisor (reset IC) with active-low push-pull reset - TLV809
Datasheet
 

Recommended alternative parts

  • TLV809E  -  This is an upgraded version of the TLV809 with lower quiescent current, higher accuracy, lower VPOR and a wider operating temperature range

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

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)
TLV809 Order now 2.25
2.64
2.93
4.55    
1     6     2     Active-low
Push-pull    
200     Ease-of-use     Catalog     -40 to 85     None    
LM809 Order now 2.63
2.93
3.08
4.38
4.63    
1     5.5     1     Active-low
Push-pull    
240     Ease-of-use     Catalog     -40 to 105     None    
LM810 Order now 4.63     1     5.5     1     Active-high
Push-pull    
240     Ease-of-use     Catalog     -40 to 105     None    
TLV803 Order now 2.25
2.64
2.93
4.38    
1     6     1.1     Active-low
Open-drain    
200     Ease-of-use     Catalog     -40 to 125     None    
TLV803E Order now 2.64
2.93
4.38    
1     6     1.7     Active-low
Open-drain    
200     Ease-of-use     Catalog     -40 to 125     None    
TLV809E Order now 2.64
2.93
3.08
4.38
4.63    
1     6     1.7     Active-low
Push-pull    
200     Ease-of-use     Catalog     -40 to 125     None    
TLV853 Order now 4.38     1     6     1     Active-low
Open-drain    
200     Ease-of-use     Catalog     -40 to 125     None    
TPS3839 Order now 0.9
1.1
1.52
1.67
2.325
2.63
2.93
3.08
4.38    
1     6.5     0.9     Active-low
Push-pull    
200     Ease-of-use     Catalog     -40 to 85     None