TLV809 具有低电平有效推挽复位功能的 3 引脚电压监控器(复位 IC) | 德州仪器 TI.com.cn

TLV809 (正在供货) 具有低电平有效推挽复位功能的 3 引脚电压监控器(复位 IC)

具有低电平有效推挽复位功能的 3 引脚电压监控器(复位 IC) - TLV809
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备选器件推荐

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

描述

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.

特性

  • 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

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)
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    
LM809 立即下单 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 立即下单 4.63     1     5.5     1     Active-high
Push-pull    
240     Ease-of-use     Catalog     -40 to 105     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    
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    
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    
TPS3839 立即下单 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