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MAX809STRG
+Lista de MateriaisIC SUPERVISOR 1 CHANNEL SOT23-3
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Fabricanteonsemi
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Peça do Fabricante #MAX809STRG
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Pacote SOT23-3
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 2.93V |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| ResetTimeout | 140ms Minimum |
| OperatingTemperature | -40°C ~ 105°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Visão Geral
Description
Key features include:
1. Reset Threshold Options: The MAX809STRG offers multiple threshold voltage options to suit various system requirements.
2. Low Supply Current: It consumes minimal power, making it ideal for battery-operated devices.
3. Manual Reset Capability: Some variations allow for manual reset, providing greater control over system operation.
4. Fast Response Time: The device quickly responds to voltage drops, providing timely reset signals.
5. Wide Operating Voltage Range: This makes it versatile for different applications.
The MAX809STRG is commonly used in microcontroller-based systems, industrial controls, and consumer electronics. It contributes to system reliability by ensuring that devices reset predictably during undervoltage conditions, thus preventing potential system failures.
Equivalent
1. Microchip Technology's MCP130 series.
2. On Semiconductor's NCP300 series.
3. STMicroelectronics' STM809 series.
4. Texas Instruments' TPS3809 series.
5. Diodes Incorporated's APX809 series.
These are all voltage monitoring ICs with similar functionalities, designed for microprocessor supervisory applications. Always check datasheets to ensure compatibility for your specific application.
Features
1. Supply Voltage Monitoring: It monitors the system's supply voltage and generates a reset signal when the voltage level falls below a specified threshold.
2. Reset Output: Provides a push-pull active-low reset output. This ensures the microprocessor initializes correctly upon power-up or brownout conditions.
3. Precision Monitoring: Offers precise voltage threshold detection with an accuracy of ±2%.
4. Low Supply Current: Operates with a very low supply current, typically around 3µA, making it suitable for battery-powered applications.
5. Fast Response: Features a fast propagation delay of typically 20µs, enabling quick response to undervoltage conditions.
6. Operating Voltage Range: Functions over a wide voltage range, typically from 1V to 5.5V.
7. Compact Package: Available in a small SOT-23 package, facilitating integration into space-constrained designs.
8. Temperature Range: Operates over an extended temperature range, typically from -40°C to +85°C, suitable for various environmental conditions.
These features make the MAX809STRG ideal for ensuring reliable microprocessor operation by preventing operation during low voltage conditions.
Pinout
Pin Count and Functions:
1. 3 Pins:
- Pin 1 (GND): Ground pin connects to the system ground.
- Pin 2 (RESET or RESET): Depending on the variant, this pin provides an active-low (RESET) or active-high (RESET) reset signal to the microprocessor.
- Pin 3 (VCC): Power supply pin connected to the monitored voltage.
The MAX809 monitors the VCC pin and asserts the RESET signal if the supply voltage drops below a predetermined threshold. Once VCC rises above the threshold, the reset signal is held active for a specified time delay, ensuring the microprocessor resets reliably.
Manufacturer
Application
1. Microprocessor Reset Circuitry: Ensures reliable operation by providing a reset signal when power supply voltages drop below a predetermined level.
2. Embedded Systems: Protects microcontrollers by preventing them from operating under insufficient power conditions.
3. Consumer Electronics: Used in devices like smartphones and tablets to enhance stability and prevent data corruption during power fluctuations.
4. Industrial Automation: Maintains operational integrity of control systems by monitoring and regulating power supply levels.
5. Communication Equipment: Ensures reliable boot-up and operation of network devices by monitoring voltage levels.
These applications benefit from its compact size, low power consumption, and high reliability.