ADM691AARNZ-REEL7
数据手册.pdfADI(亚德诺)
主动器件
Processor Supervisor 4.65V 4.75V to 5.5V Automotive 16Pin SOIC N T/R
Product Details
The ADM691A/ADM693A/ADM800L/ADM800M family of supervisory circuits offers complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include mP reset, backup-battery switchover, watchdog timer, CMOS RAM write protection, and power-failure warning. The family of products provides an upgrade for the MAX691A/93A/800M family of products.
All parts are available in 16-pin DIP and SO packages. The ADM691A is also available in a space-saving TSSOP package. The following functionality is provided:
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- Power-on reset output during power-up, power-down and brownout conditions. The circuitry remains operational with VCC as low as 1 V.
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- Battery backup switching for CMOS RAM, CMOS micro-processor or other low power logic.
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- A reset pulse if the optional watchdog timer has not been toggled within a specified time.
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- A 1.25 V threshold detector for power fail warning, low battery detection, or to monitor a power supply other than +5 V.
### Features and Benefits
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- Low Power Consumption:
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- Precision Voltage Monitor
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- ±2% Tolerance on ADM800L/M
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- Reset Time Delay—200 ms, or Adjustable
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- 1 µA Standby Current
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- Automatic Battery Backup Power Switching
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- Fast Onboard Gating of Chip Enable Signals
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- Also Available in TSSOP Package ADM691A