Overview
The TPS3824-25DBVR is a supervisory circuit manufactured by Texas Instruments, designed to provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. This component is part of the TPS382x family, which offers a range of features including power-on reset generation, manual reset inputs, and watchdog timers. The TPS3824-25DBVR is particularly suited for systems requiring both active-low and active-high reset outputs, making it versatile for various applications.
Key Specifications
| Attribute | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS3824-25DBVR |
| Package | 5-pin SOT-23 (DBV) |
| Supply Voltage Supervision Range | 2.5 V, 3 V, 3.3 V, 5 V |
| Reset Output | Active-low and active-high |
| Watchdog Timer | 200 ms (typical) |
| Manual Reset Input | Available |
| Supply Current | 15 μA (typical) |
| Operating Temperature Range | −40°C to 85°C |
| Reset Delay Time | 200 ms |
Key Features
- Power-on Reset Generator: With a fixed delay time of 200 ms to ensure proper system reset.
- Manual Reset Input: Allows an external logic signal to force a reset regardless of the supply voltage or watchdog timer state.
- Reset Output Options: Available in active-low, active-high, and open-drain configurations.
- Watchdog Timer: Monitors the system for proper operation and initiates a reset if the watchdog timer is not periodically reset.
- Low Supply Current: Typical supply current of 15 μA, making it suitable for power-sensitive applications.
- Compact Package: 5-pin SOT-23 package for space-efficient designs.
Applications
- DSPs, Microcontrollers, and Microprocessors: Ideal for systems requiring robust power-on reset and watchdog functionality.
- Industrial Equipment: Suitable for supervising power supplies in industrial control systems.
- Programmable Controls: Used in programmable logic controllers (PLCs) and other programmable devices.
- Automotive Systems: Applicable in automotive electronics requiring reliable power supervision.
- Portable and Battery-Powered Equipment: Suitable for devices needing low power consumption and reliable reset functionality.
- Wireless Communications Systems: Used in wireless communication devices to ensure stable operation.
- Notebook and Desktop Computers: Can be used in computer systems to monitor and reset the power supply as needed.
Q & A
- What is the primary function of the TPS3824-25DBVR?
The primary function of the TPS3824-25DBVR is to provide circuit initialization and timing supervision, including power-on reset generation and watchdog timer functionality.
- What are the available reset output configurations for the TPS3824-25DBVR?
The TPS3824-25DBVR offers both active-low and active-high reset output configurations.
- What is the typical supply current of the TPS3824-25DBVR?
The typical supply current is 15 μA.
- What is the operating temperature range of the TPS3824-25DBVR?
The operating temperature range is −40°C to 85°C.
- Does the TPS3824-25DBVR have a manual reset input?
- What is the watchdog timer duration for the TPS3824-25DBVR?
The watchdog timer duration is 200 ms.
- In what package is the TPS3824-25DBVR available?
The TPS3824-25DBVR is available in a 5-pin SOT-23 (DBV) package.
- What are some common applications for the TPS3824-25DBVR?
Common applications include DSPs, microcontrollers, industrial equipment, programmable controls, automotive systems, portable and battery-powered equipment, wireless communications systems, and notebook and desktop computers.
- Does the TPS3824-25DBVR require external components for voltage supervision?
No, the TPS3824-25DBVR does not require external components for voltage supervision as it uses an internal voltage divider.
- What is the reset delay time for the TPS3824-25DBVR?
The reset delay time is 200 ms.
