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4引脚、超低电压、低功耗、微处理器复位电路,带有手动复位

业内首款性能优异的复位IC,用于1.8V电源,带手动复位,SOT封装

产品详情

主要特征

应用/用途

Parametric specs for Supervisors (1 Monitored Voltage)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
Reset Thresh. Accur. (%) (@ +25°C) 1.8
Reset Out Active Low
Push-Pull
tRESET (min) 1ms to 15ms
15ms to 85ms
85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 7
Package/Pins SOT23/4
Budgetary
Price (See Notes)
1.51
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参量

Parametric specs for Supervisors (1 Monitored Voltage)
Reset Thresh. (V) 1.2 to 1.8
1.8 to 2.5
Reset Thresh. Accur. (%) (@ +25°C) 1.8
Reset Out Active Low
Push-Pull
tRESET (min) 1ms to 15ms
15ms to 85ms
85ms to 300ms
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 7
Package/Pins SOT23/4
Budgetary
Price (See Notes)
1.51

主要特征

  • Ultra-Low 0.7V Operating Supply Voltage
  • Low 3.3µA Supply Current
  • Precision Monitoring of 1.8V and 2.5V Power-Supply Voltages
  • Reset Thresholds Available from 1.6V to 2.5V, in Approximately 100mV Increments
  • Debounced Manual Reset
  • Fully Specified over Temperature
  • Three Power-On Reset Pulse Widths Available (1ms min, 20ms min, 100ms min)
  • Low Cost
  • Three Available Output Structures: Push/Pull active-low RESET, Push/Pull RESET, Open-Drain active-low RESET
  • Guaranteed RESET/active-low RESET Valid to VCC = 0.7V (MAX6335/MAX6336)
  • Power-Supply Transient Immunity
  • No External Components
  • 4-Pin SOT143 Package
  • Pin-Compatible with MAX811/MAX812 and MAX6314/MAX6315

应用/用途

  • 汽车电子
  • 计算机:台式机、工作站和服务器
  • 控制器
  • 精确的µP与µC电源监控
  • 智能仪表
  • Pentium® ll计算机
  • 便携式电池供电设备

描述

The MAX6335/MAX6336/MAX6337 microprocessor (µP) supervisory circuits monitor the power supplies in 1.8V to 3.3V µP and digital systems. They increase circuit reliability and reduce cost by eliminating external components and adjustments. They also feature a debounced manual-reset input.

These devices perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold or whenever manual reset is asserted. Reset remains asserted for a preset timeout period after VCC has risen above the reset threshold or after manual reset is deasserted. The only difference among the three devices is their output. The MAX6336 (push/pull) and MAX6337 (open-drain) have an active-low RESET output, while the MAX6335 (push/pull) has an active-high RESET output. The MAX6335/MAX6336 are guaranteed to be in the correct state for VCC down to 0.7V. The MAX6337 is guaranteed to be in the correct state for VCC down to 1.0V.

The reset comparator in these ICs is designed to ignore fast transients on VCC. Reset thresholds are factory-trimmable between 1.6V and 2.5V, in approximately 100mV increments. There are 15 standard versions available (2500 piece minimum-order quantity); contact the factory for availability of nonstandard versions (10,000 piece minimum-order quantity). For space-critical applications, the MAX6335/MAX6336/MAX6337 come packaged in a 4-pin SOT143.

简化框图

MAX6335、MAX6336、MAX6337:典型工作电路 MAX6335、MAX6336、MAX6337:典型工作电路 Zoom icon

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