Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Watchdog Circuit |
| Voltage-Supply | 1.8V ~ 6.5V |
| Current-Supply | 10 µA |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | 8-VDFN Exposed Pad |
| SupplierDevicePackage | 8-SON (3x3) |
Overview
Description
The TPS3431SDRBR is a programmable watchdog timer (WDT) from Texas Instruments, designed to monitor system health in embedded applications. It features an adjustable timeout period (from 1.6ms to 204.8s) via an external capacitor, ensuring flexibility for diverse systems.
Key features include:
- Low quiescent current (1.5µA typical), ideal for power-sensitive designs.
- Manual or windowed watchdog modes, enhancing system reliability.
- Active-low reset output with a fixed delay (typ. 200ms).
- Wide 1.8V to 5.5V supply range, supporting various microcontrollers.
The SDRBR package is a 6-pin SON (1.5mm x 1.5mm), suited for compact PCB layouts. Applications include industrial controls, IoT devices, and battery-powered systems requiring fail-safe monitoring.
For detailed specs, refer to the [TI datasheet](https://www.ti.com/product/TPS3431).
Key features include:
- Low quiescent current (1.5µA typical), ideal for power-sensitive designs.
- Manual or windowed watchdog modes, enhancing system reliability.
- Active-low reset output with a fixed delay (typ. 200ms).
- Wide 1.8V to 5.5V supply range, supporting various microcontrollers.
The SDRBR package is a 6-pin SON (1.5mm x 1.5mm), suited for compact PCB layouts. Applications include industrial controls, IoT devices, and battery-powered systems requiring fail-safe monitoring.
For detailed specs, refer to the [TI datasheet](https://www.ti.com/product/TPS3431).
Equivalent
Equivalent products to the TPS3431SDRBR (a watchdog timer IC from Texas Instruments) include:
- MAX706 (Maxim Integrated)
- TPS3823 (Texas Instruments)
- STWD100 (STMicroelectronics)
- MCP100 (Microchip)
- ADM6316 (Analog Devices)
These alternatives offer similar watchdog timer functionality with adjustable or fixed timeout periods. Check datasheets for exact voltage ranges, package options, and features.
- MAX706 (Maxim Integrated)
- TPS3823 (Texas Instruments)
- STWD100 (STMicroelectronics)
- MCP100 (Microchip)
- ADM6316 (Analog Devices)
These alternatives offer similar watchdog timer functionality with adjustable or fixed timeout periods. Check datasheets for exact voltage ranges, package options, and features.
Features
The TPS3431SDRBR is a programmable watchdog timer with the following key features:
- Adjustable Watchdog Timeout: Configurable from 1.6ms to 1.6s via an external resistor.
- Low Quiescent Current: 1.5µA (typ) in sleep mode, extending battery life.
- Wide Supply Voltage Range: 1.8V to 5.5V, suitable for various applications.
- Small Package: SOT-23-6 (DRB), ideal for space-constrained designs.
- Manual Reset Input (MR): Allows external system reset control.
- Open-Drain Reset Output (RST): Active-low reset signal with 200ms (min) delay.
- Industrial Temperature Range: -40°C to +125°C, ensuring reliability in harsh environments.
Ideal for battery-powered, IoT, and embedded systems requiring robust watchdog functionality.
- Adjustable Watchdog Timeout: Configurable from 1.6ms to 1.6s via an external resistor.
- Low Quiescent Current: 1.5µA (typ) in sleep mode, extending battery life.
- Wide Supply Voltage Range: 1.8V to 5.5V, suitable for various applications.
- Small Package: SOT-23-6 (DRB), ideal for space-constrained designs.
- Manual Reset Input (MR): Allows external system reset control.
- Open-Drain Reset Output (RST): Active-low reset signal with 200ms (min) delay.
- Industrial Temperature Range: -40°C to +125°C, ensuring reliability in harsh environments.
Ideal for battery-powered, IoT, and embedded systems requiring robust watchdog functionality.
Application
The TPS3431SDRBR is a programmable watchdog timer (WDT) supervisor IC, commonly used in:
1. Industrial Systems – Ensures reliability in PLCs, motor controls, and automation.
2. Consumer Electronics – Monitors microcontrollers in smart devices.
3. Automotive – Safeguards infotainment and ADAS systems.
4. Medical Devices – Prevents failures in critical equipment.
5. Networking & Telecom – Maintains uptime in routers and servers.
It resets systems upon faults, enhancing stability in embedded applications.
1. Industrial Systems – Ensures reliability in PLCs, motor controls, and automation.
2. Consumer Electronics – Monitors microcontrollers in smart devices.
3. Automotive – Safeguards infotainment and ADAS systems.
4. Medical Devices – Prevents failures in critical equipment.
5. Networking & Telecom – Maintains uptime in routers and servers.
It resets systems upon faults, enhancing stability in embedded applications.
