Overview
The TPS3852G33DRBR is a precision voltage supervisor with an integrated window watchdog timer, manufactured by Texas Instruments. This device is designed to provide high-accuracy voltage supervision and watchdog functionality, making it ideal for use in systems that require tight voltage tolerance and reliable fault detection. The TPS3852G33DRBR operates over a wide VDD input voltage range of 1.6 V to 6.5 V and features a precision undervoltage supervisor with a threshold accuracy of 0.8% over the temperature range of –40°C to +125°C. It also includes accurate hysteresis and a programmable window watchdog timer, which can be set using an external capacitor or factory-programmed default settings.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VDD Input Voltage Range | 1.6 to 6.5 | V |
| Voltage Threshold Accuracy | 0.8% | |
| Supply Current (IDD) | 10 | µA (typical) |
| Watchdog Timeout Accuracy | ±15% | |
| Reset Delay Accuracy | ±15% | |
| Package Type | 8-Pin VSON | |
| Package Size | 3.00 mm × 3.00 mm | |
| Operating Temperature Range | –40°C to +125°C | |
| Undervoltage Thresholds Available | 4% and 7% | |
| Hysteresis | 0.5% |
Key Features
- Precision undervoltage supervisor with 0.8% accuracy over the specified temperature range.
- User-programmable window watchdog timer with external capacitor or factory-programmed settings.
- Low supply current: IDD = 10 µA (typical).
- Manual reset input (MR) for initiating a reset.
- Open-drain outputs for RESET and WDO.
- Watchdog disable feature for development purposes.
- Precision hysteresis for tight tolerance systems.
- Available in a small 3-mm × 3-mm, 8-pin VSON package.
Applications
- Safety-critical applications.
- Telematics control units.
- High-reliability industrial systems.
- Patient monitoring systems.
- Industrial control systems.
- FPGAs and ASICs.
- Microcontrollers and DSPs.
Q & A
- What is the input voltage range of the TPS3852G33DRBR?
The input voltage range is from 1.6 V to 6.5 V. - What is the accuracy of the voltage threshold for the TPS3852G33DRBR?
The voltage threshold accuracy is 0.8% over the specified temperature range. - How is the watchdog timeout programmed in the TPS3852G33DRBR?
The watchdog timeout can be programmed using an external capacitor or factory-programmed default settings. - What is the typical supply current of the TPS3852G33DRBR?
The typical supply current is 10 µA. - What is the purpose of the manual reset input (MR) in the TPS3852G33DRBR?
The manual reset input allows a processor or other logic circuits to initiate a reset by driving the MR pin low. - What types of outputs does the TPS3852G33DRBR have?
The device has open-drain outputs for RESET and WDO. - Can the watchdog be disabled in the TPS3852G33DRBR?
Yes, the watchdog can be disabled during the development process. - What is the package type and size of the TPS3852G33DRBR?
The device is available in an 8-pin VSON package with a size of 3.00 mm × 3.00 mm. - What are some common applications of the TPS3852G33DRBR?
Common applications include safety-critical systems, telematics control units, high-reliability industrial systems, patient monitoring, industrial control systems, FPGAs, ASICs, microcontrollers, and DSPs. - What is the operating temperature range of the TPS3852G33DRBR?
The operating temperature range is from –40°C to +125°C.
