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

Contact Sales

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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