Voltage Supervisors | MAX803

电压监督器，极低电源电流，3 引脚微处理器，重置监控器

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概览

MAX803/NCP803 是一款成本高效的系统监督电路，用于监控数字系统中的 VCC，必要时为宿主处理器提供重置信号。无需外部组件。重置输出通过重置电压阈值，在 VCC 下降 10 µsec 内驱动为有效。重置将在 VCC 上升至重置阈值以上之后一个超时时段内保持有效，该时段通过系数进行微调。MAX803/NCP803 具有一个开路有效低电平 RESET(bar) 输出。MAX803/NCP803 的输出在低至 VCC = 1.0 V 下可保证有效，采用 SOT-23 和 SC-70 封装。MAX803/NCP803 适用于抑制 VCC 线路上的快速瞬变差错。0.5 µA (VCC = 3.3 V) 的低电源电流使得此器件适用于电池供电应用。

  • Computers
  • Embedded Systems
  • Battery Powered Equipment
  • Critical A Power Supply Monitoring
  • Precision VCC Monitor for 1.5 V, 1.8V, 2.5 V, 3.0 V, 3.3 V and 5.0 V supplies
  • Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps
  • Four Guaranteed Minimum RESET Output Duration
    (1ms, 20ms, 100ms and 140ms)
  • RESET Output Guaranteed to VCC = 1.0 V
  • Low 0.5 uA Supply Current
  • VCC Transient Immunity
  • Small SOT-23 and SC-70 Package
  • No External Components
  • Wide Operating Temperature: -40°C to 105°C

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Voltages Monitored

VCC Max (V)

V(TO) Typ (V)

IQ Typ (µA)

Reset Active State

Reset Timer

Manual Reset

Watchdog Timer

Reference Price

NCV803SQ308D2T1G

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Active

CAD Model

Pb

A

H

P

SC-70-3 / SOT-323-3

419-04

1

260

REEL

3000

N

1

5.5

3.08

0.5

Low

Yes

No

No

$0.1467

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