Overview
The TPS3307-33D is a micropower supply voltage supervisor IC designed by Texas Instruments. It is primarily used for circuit initialization in DSP and processor-based systems that require monitoring of multiple supply voltages. This device is part of the TPS3307 family, which includes variants for different voltage monitoring configurations. The TPS3307-33D is particularly suited for applications needing to monitor 5V, 3.3V, and an adjustable voltage above 1.25V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2 to 6 | V |
| Maximum Supply Current | 40 | µA |
| Fixed Reset Delay Time | 200 | ms |
| Operating Temperature Range | -40 to +85 | °C |
| Package Types | SO-8, MSOP-8 | |
| Reset Output | Active-low | |
| Maximum Low Output Current | 5 | mA |
| Maximum High Output Current | -5 | mA |
Key Features
- Voltage Monitoring: Monitors three independent supply voltages (5V, 3.3V, and an adjustable voltage above 1.25V).
- Fixed Reset Threshold: Provides a fixed reset threshold for consistent operation.
- Power-On Reset Generator: Includes a power-on reset generator with a fixed delay time of 200ms, no external capacitor needed.
- Temperature-Compensated Voltage Reference: Ensures accurate voltage monitoring across a range of temperatures.
- Low Power Consumption: Designed for low power operation with a maximum supply current of 40µA.
- Compact Package: Available in SO-8 and MSOP-8 packages, suitable for space-constrained applications.
- Wide Operating Temperature Range: Operates over a wide temperature range from -40°C to +85°C.
Applications
- Microcontroller Systems: Ideal for use in microcontroller-based systems requiring reliable voltage monitoring.
- Embedded Systems: Suitable for embedded applications where system stability is critical.
- Industrial Equipment: Used in industrial equipment, programmable controls, and automotive systems.
- Portable/Battery Powered Equipment: Suitable for portable and battery-powered equipment due to its low power consumption.
- Wireless Communication Systems: Used in wireless communication systems and notebook/desktop computers).
Q & A
- What is the TPS3307-33D?
The TPS3307-33D is a voltage supervisor and watchdog timer IC designed by Texas Instruments to monitor the voltage level of a system and provide a reset signal if the voltage falls below a specified threshold).
- How does the TPS3307-33D work?
The TPS3307-33D works by continuously monitoring the system voltage and comparing it to a pre-set threshold. If the voltage falls below the threshold, the device asserts a reset signal to initiate a system reset).
- What are the key specifications of the TPS3307-33D?
The key specifications include a supply voltage range of 2V to 6V, a maximum supply current of 40µA, a fixed reset delay time of 200ms, and an operating temperature range of -40°C to +85°C).
- What are the typical applications of the TPS3307-33D?
Typical applications include microcontroller systems, embedded systems, industrial equipment, portable/battery-powered equipment, and wireless communication systems).
- What are the advantages of using the TPS3307-33D?
The advantages include robust voltage monitoring, a watchdog timer function, low power consumption, and a compact package suitable for space-constrained applications).
- Are there any equivalents or alternatives to the TPS3307-33D?
Alternatives include the TPS3808 from Texas Instruments, the MAX823 from Maxim Integrated, and the ADM6820 from Analog Devices).
- How many pins does the TPS3307-33D have and what are their functions?
The TPS3307-33D has 8 pins, including VDD, GND, MR, RESET, and SENSE inputs for voltage monitoring).
- What is the package type of the TPS3307-33D?
The TPS3307-33D is available in SO-8 and MSOP-8 packages).
- How do I order the TPS3307-33D?
To order, select the 'Add to Cart' button on the product listing, proceed to the checkout page, and enter your payment and shipping information).
- What is the warranty on the TPS3307-33D?
The TPS3307-33D typically comes with a 1-year warranty from the supplier).
