TLV803E 具有低电平有效开漏复位功能的低功耗 3 引脚电压监控器(复位 IC) | 德州仪器 TI.com.cn

TLV803E
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具有低电平有效开漏复位功能的低功耗 3 引脚电压监控器(复位 IC)

具有低电平有效开漏复位功能的低功耗 3 引脚电压监控器(复位 IC) - TLV803E
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描述

The TLV803E/TLV809E are enhanced alternatives to the TLV803, TLV853, TLV809, LM809, and TPS3809. TLV803E and TLV809E offer lower supply current for battery-powered applications, higher accuracy, wider temperature range, and lower power-on reset (VPOR) for increased system reliability.

The TLV8xxE family are low IQ (250 nA typical, 1 µA max), voltage supervisory circuits (reset IC) that monitor VDD voltage level. These devices initiate a reset signal whenever supply voltage VDD drops below the factory programmed falling threshold voltage, VIT–. The reset output remains low for a fixed reset time delay tD after the VDD voltage rises above the rising voltage threshold (VIT+) which is equivalent to the falling threshold voltage (VIT-) plus hysteresis (VHYS).

These devices have integrated glitch immunity to ignore fast transients on the VDD pin. The low current consumption and high accuracy (±0.5% typical) makes these voltage supervisors ideal for use in low-power and portable applications. The TLV8xxE devices are specified to have the defined output logic state for supply voltages down to VPOR = 0.7 V. The TLV8xxE devices are available in industry standard 3-pin SOT23 (DBZ) package and 3-pin, SC70 (DCK) package.

特性

  • Ensured RESET output for VDD = 0.7 V to 6 V
  • Fixed time delay: 40 µs, 10 ms, 50 ms, 100 ms, 200 ms, 400 ms
  • Supply current (IDD): 250 nA (typical), 1 µA (maximum)
  • Output topology:
    • TLV809E: push-pull, active low
    • TLV803E: open-drain, active low
  • Under voltage detection:
    • High accuracy: ±0.5% (typical)
    • Nominal voltage monitor: 3 V, 3.3 V, 5 V
    • (VIT–): 1.7 V, 1.8 V, 1.9 V, 2.4 V, 2.64 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
  • Package:
    • SOT23-3 (DBZ) (with pin 1 = GND)
    • SOT23-3 (DBZ) (with pin 1 = RESET)
    • SC-70 (DCK)
  • Temperature range:  –40°C to +125°C
  • Pin-to-pin compatible with MAX803/809, APX803/809

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参数

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Part number 立即下单 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)
TLV803E 立即下单 2.64
2.93
4.38    
1     6     1.7     Active-low
Open-drain    
200     Ease-of-use     Catalog     -40 to 125     None    
TLV803 立即下单 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    
TLV809 立即下单 2.25
2.64
2.93
4.55    
1     6     2     Active-low
Push-pull    
200     Ease-of-use     Catalog     -40 to 85     None    
TLV809E 立即下单 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 立即下单 4.38     1     6     1     Active-low
Open-drain    
200     Ease-of-use     Catalog     -40 to 125     None