TLV840 Low-voltage supervisor with adjustable-reset time delay and manual reset | TI.com

TLV840
This product is prototype/experimental and has not been released to the market. Testing and final processes may not be complete. This product may be subject to further changes or possible discontinuation.
Low-voltage supervisor with adjustable-reset time delay and manual reset

 

Sample availability

Preproduction samples are available. Order now

Description

The TLV840 family of voltage supervisors or reset ICs can operate at high voltage levels while maintaining very low quiescent current across the whole VDD and temperature range. TLV840 offers best combination of low power consumption, high accuracy and low propagation delay (tp_HL= 30 µs typical).

Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-). Reset signal is cleared when VDD rise above VIT- plus hysteresis (VHYS) and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground for TLV840C and TLV840M. For a minimum reset delay time the CT pin can be left floating. TLV840N does not offer a programmable delay and offers fixed reset delay timing options: 40 µs, 2 ms, 10 ms, 30 ms, 50 ms, 80 ms, 100 ms, 150 ms, 200 ms.

Additional features: Low power-on reset voltage (VPOR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (ILKG(OD)). TLV840 is a perfect voltage monitoring solution for industrial applications and battery-powered / low-power applications.










Features

  • Operating voltage range : 0.7 V to 6 V
  • Nano supply current : 120 nA (Typical)
  • Fixed threshold voltage (VIT-): 0.8 V to 5.5 V in 0.1-V steps
    • High accuracy: 0.5% (Typical)
    • Built-in hysteresis (VIT+): 5% (Typical)
  • Reset time delay (tD): capacitor-based programmable (TLV840C, TLV840M)
    • Minimum time delay: 30 µs (typical) without capacitor
  • Active-low manual reset (MR) (TLV840M)
  • Four output topologies:
    • TLV840xxDL: open-drain, active-low (RESET)
    • TLV840xxPL: push-pull, active-low (RESET)
    • TLV840xxDH: open-drain, active-high (RESET)
    • TLV840xxPH: push-pull, active-high (RESET)
  • Wide temperature range: –40°C to +125°C
  • Package: SOT23-5 (DBV)

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Parametrics

Compare all products in Supervisor & reset ICs Email Download to Excel
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) TI functional safety category Watchdog timer WDI (sec)
TLV840 Order now Adjustable, 0.8, 0.9, 2.8, 2.9, 4.3     1     6     0.7     Active-low
Open-drain
Push-pull    
Programmable     Manual reset, Reset time delay     Catalog     -40 to 125       None    
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4.5    
1     6     1     Active-low
Open-drain    
Programmable       Catalog     -40 to 85       None    
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2.75
2.93
3.08
3.65
4
4.38
4.63    
1     10     0.9     Active-low
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Programmable     Manual reset     Catalog     -40 to 125       None    
TLV803E Order now 2.64
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Open-drain    
200     Ease-of-use     Catalog     -40 to 125       None    
TLV809E Order now 2.64
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3.08
4.38
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200     Ease-of-use     Catalog     -40 to 125       None    
TLV810 Order now 2.25
2.64
2.93
4.38    
1     6     1.1     Active-high
Push-pull    
200     Ease-of-use     Catalog     -40 to 125       None    
TLV810E Order now 2.93     1     6     1.7     Active-high
Push-pull    
200     Ease-of-use     Catalog     -40 to 125       None    
TPS3808 Order now Adjustable
0.84
1.12
1.16
1.4
1.67
1.77
2.33
2.79
3.07
4.65    
1     6.5     1.8     Active-low
Open-drain    
Programmable     Active-low enable
Manual reset    
Catalog     -40 to 125       None    
TPS3840 Order now Trimmable
1.6
1.8
2
2.2
2.4
2.5
2.7
2.8
2.9
3
3.1
4.0
4.2
4.3