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重設與看門狗 IC

LP3470

不推薦在新設計中採用

具可編程延遲和 1% 重設閾值的低電位作動重設 IC

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產品規格表
LP3470 不建議用於新設計
此產品將繼續向現有客戶提供。新設計應考量替代產品。
open-in-new 比較替代產品
具備升級功能，可直接投入使用替代所比較的裝置。
LP3470A 現行 具有可編程延遲和 1% 重設閾值的超低電位作動重設 IC This device features improvements including lower IQ (0.3 μA), wider input voltage (10 V) and wider temperature range (-40°C to +125°C).

LP3470

不推薦在新設計中採用
產品規格表 立即訂購

產品詳細資料

Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.75, 2.83, 2.93, 3.08, 3.65, 4, 4.38, 4.63, 5.48 Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.016 Output driver type/reset output Active-low, Open-drain Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.75, 2.83, 2.93, 3.08, 3.65, 4, 4.38, 4.63, 5.48 Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.016 Output driver type/reset output Active-low, Open-drain Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • 5-Pin SOT-23 Package
  • Open-Drain Reset Output
  • Programmable Reset Time-Out Period Using an
    External Capacitor
  • Immune to Short VCC Transients
  • ±1% Reset Threshold Accuracy Over
    Temperature
  • Low Quiescent Current (16 µA typical)
  • Reset Valid Down to VCC = 0.5 V
  • 5-Pin SOT-23 Package
  • Open-Drain Reset Output
  • Programmable Reset Time-Out Period Using an
    External Capacitor
  • Immune to Short VCC Transients
  • ±1% Reset Threshold Accuracy Over
    Temperature
  • Low Quiescent Current (16 µA typical)
  • Reset Valid Down to VCC = 0.5 V

The LP3470 device is a micropower voltage supervisory circuit designed to monitor voltages within 1% of reset threshold over temperature. It provides maximum adjustability for power-on-reset (POR) and supervisory functions.

The LP3470 asserts a reset signal whenever the VCC supply voltage falls below a reset threshold. The reset time-out period is adjustable using an external capacitor. Reset remains asserted for an interval (programmed by an external capacitor) after VCC has risen above the threshold voltage.

For information on available reset threshold voltage options, see Mechanical, Packaging, and Orderable Information.

The LP3470 device is a micropower voltage supervisory circuit designed to monitor voltages within 1% of reset threshold over temperature. It provides maximum adjustability for power-on-reset (POR) and supervisory functions.

The LP3470 asserts a reset signal whenever the VCC supply voltage falls below a reset threshold. The reset time-out period is adjustable using an external capacitor. Reset remains asserted for an interval (programmed by an external capacitor) after VCC has risen above the threshold voltage.

For information on available reset threshold voltage options, see Mechanical, Packaging, and Orderable Information.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LP3470 Voltage Supervisor With Programmable Delay and 1% Reset Threshold datasheet (Rev. G) PDF | HTML 2016/4/27

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