TPS3839 Ultra-Low Power, Supply Voltage Supervisor | TI.com

TPS3839
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Ultra-Low Power, Supply Voltage Supervisor

Ultra-Low Power, Supply Voltage Supervisor - TPS3839
Datasheet
TPS383x 150-nA, Ultralow Power, Supply Voltage Monitor datasheet (Rev. D)
 

Recommended alternative parts

  • TPS3831  -  Offers a manual reset pin with similar specifications as the TPS3839

Description

The TPS3831 and TPS3839 devices (both referred to as TPS383x) are ultralow current (150 nA, typical), voltage supervisory circuits that monitor a single voltage. Both devices initiate an active-low reset signal whenever the VDD supply voltage drops below the factory-trimmed reset threshold voltage. The reset output remains low for 200 ms (typical) after the VDD voltage rises above the threshold voltage and hysteresis. These devices are designed to ignore fast transients on the VDD pin. The TPS3831 device includes a manual reset input that forces RESET low when MR is low.

The ultralow current consumption of 150 nA makes these voltage supervisors ideal for use in low-power and portable applications. The TPS383x devices are specified to have the correct output logic state for supply voltages down to 0.6 V.

The TPS383x devices feature precision factory-trimmed threshold voltages and extremely low-power operation. The TPS3831 device is available in a 4-pin, 1-mm × 1-mm (DQN) X2SON package. The TPS3839 device is available in a 3-pin SOT23 (DBZ) package or a 4-pin, 1-mm × 1-mm (DQN) X2SON package.

Features

  • Ultralow Supply Current: 150 nA (Typical)
  • Operating Supply Voltage: 0.9 V to 6.5 V
  • Valid Reset for VDD > 0.6 V
  • Push-Pull RESET Output
  • Factory-Trimmed Reset Threshold Voltages
  • Temperature Range: –40°C to 85°C
  • Packages: 1-mm × 1-mm X2SON or 3-Pin SOT23

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)
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    
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    
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    
TPS3831 Order now 0.9
1.1
1.52
1.67
2.63
2.93
3.08
4.38    		 1     6.5     0.9     Active-low
Push-pull    		 200     Active-low enable
Manual reset
Ease-of-use    		 Catalog     -40 to 85     None