Product Description
Specification
| Base Part Number | MAX639 |
| Mounting Type | Through Hole |
| Voltage Output Min Fixed | 1.3V (5V) |
| Voltage Output Max | 11.5V |
| Voltage Input Min | 4V |
| Voltage Input Max | 11.5V |
| Topology | Buck |
| Synchronous Rectifier | No |
| Supplier Device Package | 8-PDIP |
| Part Status | Active |
| Packaging | Tube |
| Package Case | 8-DIP (0.300", 7.62mm) |
| Output Type | Adjustable (Fixed) |
| Output Current | 225mA |
| Output Configuration | Positive |
| Operating Temperature | 0 deg C ~ 70 deg C (TA) |
| Number of Outputs | 1 |
| Function | Step-Down |
Reliable System MonitoringThe MAX639CPA ensures reliable system performance by continuously monitoring the voltage supply and delivering a reset signal if the voltage dips below the 4.65V threshold. This simple mechanism helps protect microprocessors and digital systems from unreliable power conditions, thereby enhancing overall stability in the design.
Flexible DIP-8 PackagingOffered in a standard 8-pin Dual In-line Package (DIP-8), the MAX639CPA is well-suited for through-hole soldering, making it convenient for both prototyping and production environments. Its pin compatibility supports easy integration into existing and new circuit boards.
FAQs of MAX639CPA:
Q: How does the MAX639CPA assist in maintaining system reliability?
A: The MAX639CPA monitors the systems supply voltage, issuing a reset through its open-drain output whenever the voltage falls below 4.65V (typical). This ensures connected processors and circuits restart in a controlled manner during power disturbances, minimizing operational errors.
Q: What is the benefit of the open-drain, active-low reset output on the MAX639CPA?
A: An open-drain, active-low reset output enables flexible system integration, allowing the MAX639CPA to interface with microcontrollers that require a low signal for reset. Users can also wire multiple reset devices together if needed for broader system control.
Q: When should I use the MAX639CPA in my design?
A: Use the MAX639CPA when you need to protect sensitive electronics from undervoltage conditions, particularly in 5V supply environments. Its reset function is ideal for designs requiring robust startup sequences and voltage supervision.
Q: Where can I source the MAX639CPA in India?
A: This IC is available through various channels in India, including distributors, importers, manufacturers, suppliers, traders, and wholesalers who specialize in integrated electronic components.
Q: What is the process for integrating the MAX639CPA into a circuit?
A: To incorporate the MAX639CPA, connect the Vcc and GND pins to the power supply, link the reset output to the systems reset input, and consider adding a pull-up resistor if necessary. Follow the DIP-8 pinout guide for precise layouts.
Q: Does the MAX639CPA support lead-free and RoHS-compliant initiatives?
A: Yes, the MAX639CPA is both lead-free and RoHS compliant, making it a safe choice for environmentally conscious designs and regulatory compliance.