Overview
The TPS3808G09DBVT is a low quiescent current, programmable-delay supervisory circuit manufactured by Texas Instruments. This device is designed to monitor voltage levels and provide a reset signal when the voltage drops below a predetermined threshold. It is particularly suited for battery-powered applications due to its very low typical quiescent current of 2.4 μA. The TPS3808G09DBVT is available in a small SOT-23-6 package, making it ideal for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS3808G09DBVT |
| Package | SOT-23-6 |
| Number of Voltages Monitored | 1 |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| Reset Timeout | Adjustable/Selectable (1.25 ms to 10 s) |
| Voltage - Threshold | 0.84V |
| Operating Temperature | -40°C to 125°C (TJ) |
| Mounting Type | Surface Mount |
| Supply Voltage Min | 1.7V |
| Supply Voltage Max | 6.5V |
| Quiescent Current | 2.4 μA typical |
Key Features
- Power-on reset generator with adjustable delay time: 1.25 ms to 10 s
- Very low quiescent current: 2.4 µA typical
- High threshold accuracy: 0.5% typical
- Fixed threshold voltages for standard voltage rails from 0.9 V to 5 V and adjustable voltage down to 0.4 V
- Manual reset (MR) input
- Open-drain RESET output
- Temperature range: –40°C to 125°C
- Small SOT-23 and 2-mm × 2-mm WSON packages
Applications
The TPS3808G09DBVT is suitable for a variety of applications, including battery-powered devices, embedded systems, and other electronic circuits that require voltage monitoring and reset capabilities. It is particularly useful in designs where low power consumption is critical, such as in portable electronics, medical devices, and industrial control systems.
Q & A
- What is the primary function of the TPS3808G09DBVT?
The primary function of the TPS3808G09DBVT is to monitor voltage levels and provide a reset signal when the voltage drops below a predetermined threshold. - What is the typical quiescent current of the TPS3808G09DBVT?
The typical quiescent current is 2.4 μA. - What is the operating temperature range of the TPS3808G09DBVT?
The operating temperature range is -40°C to 125°C (TJ). - What types of packages are available for the TPS3808G09DBVT?
The device is available in small SOT-23 and 2-mm × 2-mm WSON packages. - Can the reset timeout be adjusted?
Yes, the reset timeout is adjustable from 1.25 ms to 10 s. - What is the voltage threshold for the TPS3808G09DBVT?
The voltage threshold is 0.84V. - Does the TPS3808G09DBVT support manual reset?
Yes, it has a manual reset (MR) input. - What is the output type of the reset signal?
The output is an open-drain or open-collector type. - Is the TPS3808G09DBVT RoHS compliant?
Yes, the TPS3808G09DBVT is RoHS compliant. - What are some typical applications for the TPS3808G09DBVT?
Typical applications include battery-powered devices, embedded systems, portable electronics, medical devices, and industrial control systems.
