MAX811R-TD

The MAX811X series is a microprocessor reset IC with voltage detection functionality and an enable control pin, designed to monitor the supply voltage of microcontrollers or other logic systems. It provides a reset signal to the system during power-up, power-down, and power-saving conditions, or when the supply voltage falls below the preset threshold voltage Vth. Meanwhile, when power is applied or the supply voltage recovers above the preset threshold voltage Vth, or when the enable pin MR transitions from low to high, the VRESET output will go high after a delay of Trp. When the input voltage falls below the threshold voltage Vth, the VRESET output of the MAX811X series goes low; when the enable control pin MR is at a low level, the VRESET output also goes low. Simple to implement with no external components required.

Applications

• Battery-powered equipment
• Power failure detectors
• Computer and microprocessor systems
• Non-volatile RAM signal storage protection
• Critical microprocessor power supply monitoring
• Embedded systems

Key features

• Low power consumption: 2uA (typical)
• Wide operating voltage range: 1V~6.0V
• VCC transient noise immunity
• Simple application, no external components required
• Built-in reset delay time 500ms (typical)
• High-accuracy reset voltage: ±2.5%
• Manual reset input MR, active low
• Compact package: SOT143