TLV809 アクティブ・ロー、プッシュプル・リセット機能搭載、3 ピン電圧スーパーバイザ | TIJ.co.jp

TLV809
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アクティブ・ロー、プッシュプル・リセット機能搭載、3 ピン電圧スーパーバイザ

アクティブ・ロー、プッシュプル・リセット機能搭載、3 ピン電圧スーパーバイザ - TLV809
データシート
 

推奨代替製品

  • TLV809E  -  これは TLV809 のアップグレード版で、静止電流低減、精度向上、VPOR 低減、動作温度範囲拡大を実現しています。

概要

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.

特長

  • 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

機能一覧

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Part number オーダー・オプション 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 ご注文 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 ご注文 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 ご注文 4.63     1     5.5     1     Active-high
Push-pull    
240     Ease-of-use     Catalog     -40 to 105     None    
TLV803 ご注文 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 ご注文 2.64
2.93
4.38    
1     6     1.7     Active-low
Open-drain    
200     Ease-of-use     Catalog     -40 to 125     None    
TLV809E ご注文 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 ご注文 4.38     1     6     1     Active-low
Open-drain    
200     Ease-of-use     Catalog     -40 to 125     None    
TPS3839 ご注文 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