Overview
The SP706SEN-L/TR, produced by MaxLinear, Inc., is a part of the SP706R/SP706S/SP706T series of microprocessor supervisory circuits. These circuits are designed to integrate multiple components that monitor power supplies and batteries in microprocessor and digital systems, significantly enhancing system reliability and operational efficiency compared to discrete solutions. The SP706SEN-L/TR is particularly suited for applications requiring precise low-voltage monitoring and robust reset capabilities.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Operating Voltage Range | 3.0 to 5.5 | V |
| Supply Current (ISUPPLY) | 25 to 40 | µA (at VCC = 3.3V) |
| Reset Threshold (SP706T) | 3.00 to 3.08 | V |
| Reset Pulse Width (tRS) | 140 to 200 | ms |
| Watchdog Timer Timeout | 1.6s | |
| Manual Reset Input | Debounced TTL/CMOS | |
| RESET Output Voltage (VOH) | 0.8 x VCC (ISOURCE = 500µA) | V |
| RESET Output Voltage (VOL) | 0.3 x VCC (ISINK = 1.2mA) | V |
| Package Type | 8-SOIC | |
| Storage Temperature | -65 to 160 | °C |
| Lead Temperature (Soldering, 10 sec) | 300 | °C |
Key Features
- Precision low voltage monitor with reset thresholds of +3.08V for the SP706T model.
- 200ms active low RESET pulse width.
- Independent watchdog timer with a 1.6s timeout and enable/disable function.
- Low supply current of up to 40µA.
- Debounced TTL/CMOS manual reset input.
- RESET asserted down to VCC = 1V.
- VCC glitch immunity.
- Voltage monitor for power failure or low battery warning.
Applications
The SP706SEN-L/TR is ideal for various applications requiring critical monitoring of the power supply to microprocessors and related digital components. These include:
- Automotive systems.
- Computers and controllers.
- Intelligent instruments.
Q & A
- What is the primary function of the SP706SEN-L/TR?
The primary function is to monitor power supplies and batteries in microprocessor and digital systems, providing a reset signal when the voltage falls below a specified threshold. - What is the operating voltage range of the SP706SEN-L/TR?
The operating voltage range is from 3.0V to 5.5V. - What is the typical supply current of the SP706SEN-L/TR?
The typical supply current is 25µA to 40µA at VCC = 3.3V. - What is the reset pulse width of the SP706SEN-L/TR?
The reset pulse width is 140ms to 200ms. - Does the SP706SEN-L/TR have a watchdog timer?
Yes, it has an independent watchdog timer with a 1.6s timeout and enable/disable function. - What type of package does the SP706SEN-L/TR come in?
The SP706SEN-L/TR comes in an 8-SOIC package. - What are the storage temperature limits for the SP706SEN-L/TR?
The storage temperature limits are from -65°C to 160°C. - Is the SP706SEN-L/TR suitable for automotive applications?
Yes, it is suitable for automotive systems among other applications. - Does the SP706SEN-L/TR have VCC glitch immunity?
Yes, it has VCC glitch immunity. - Can the RESET signal be asserted even at low VCC levels?
Yes, the RESET signal can be asserted down to VCC = 1V.
