MAX1607ESA+TG002

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics:
  • Low Supply Current
  • Precision Monitoring of 3V, 3.3V, and 5V Power-Supply Voltages
  • Adjustable Reset Threshold
  • Manual Reset Input
  • Active-Low RESET Output
  • Power-On Reset Delay Time: 100ms (typ)
  • Watchdog Timer
  • Package: SOIC-8
  • Essence: Voltage Supervisor with Watchdog Timer
  • Packaging/Quantity: Tape & Reel (3000 pieces)

Specifications

• Supply Voltage Range: 1V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Accuracy: ±1.5%
• Watchdog Timeout Period: 1.6s (typ)
• Quiescent Current: 10µA (typ)
• Power-On Reset Delay Time: 100ms (typ)
• Manual Reset Input Threshold Voltage: 0.4V (typ)
• Active-Low RESET Output Voltage: 0.4V (typ)

Pin Configuration

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Manual Reset Input (MR) --| WDI NC |-- Pin 3: Watchdog Input (WDI) --| RESET NC |-- Pin 4: RESET Output (RESET) --| GND NC |-- Pin 5: Ground (GND) --| VCC NC |-- Pin 6: Positive Supply Voltage (VCC) --| NC NC |-- Pin 7: No Connection (NC) --| NC NC |-- Pin 8: No Connection (NC) |___________| ```

Functional Features

• Monitors the power supply voltage and provides a reset signal when the voltage drops below a specified threshold.
• Adjustable reset threshold allows customization for different applications.
• Manual reset input allows external control of the reset function.
• Active-low RESET output indicates when the monitored voltage is within the acceptable range.
• Power-on reset delay ensures stable operation during power-up.
• Watchdog timer feature resets the system if it fails to periodically toggle the watchdog input.

Advantages

• Low supply current minimizes power consumption.
• Precision monitoring ensures reliable operation.
• Adjustable reset threshold offers flexibility.
• Manual reset input allows external control.
• Active-low RESET output simplifies system integration.
• Power-on reset delay prevents false triggering during power-up.
• Watchdog timer enhances system reliability.

Disadvantages

• Limited supply voltage range (1V to 5.5V).
• Operating temperature range may not be suitable for extreme environments.
• Reset threshold accuracy may not meet the requirements of highly precise applications.

Working Principles

The MAX1607ESA+TG002 is a voltage supervisor IC that continuously monitors the power supply voltage. It compares the voltage against an adjustable threshold and generates a reset signal when the voltage drops below this threshold. The reset signal is provided through the active-low RESET output pin. The manual reset input pin allows external control of the reset function.

Additionally, the MAX1607ESA+TG002 features a power-on reset delay to ensure stable operation during power-up. It also includes a watchdog timer that resets the system if it fails to periodically toggle the watchdog input pin. This watchdog functionality enhances the reliability of the overall system.

Application Field Plans

The MAX1607ESA+TG002 is commonly used in various electronic systems where reliable power supply monitoring is crucial. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial control systems
4. Automotive electronics
5. Power management circuits

Alternative Models

• MAX1606ESA+TG002
• MAX1608ESA+TG002
• MAX1609ESA+TG002
• MAX1610ESA+TG002
• MAX1611ESA+TG002

These alternative models offer similar functionality but may have different specifications or package options.

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