TPS3420DDRYR
Dual-channel push button controllers with configurable delay in compact packages
Manufacturer： ti
series introduction
# TPS3420DDRYR Product Series Introduction
## 1. Overview
The TPS3420DDRYR is a highly reliable and versatile product series within the realm of power management integrated circuits (PMICs). Developed by Texas Instruments, a global leader in semiconductor technology, this series is designed to provide essential power monitoring and reset functions for a wide range of electronic systems. With its compact form factor and advanced features, the TPS3420DDRYR is an ideal choice for applications where power integrity and system stability are of utmost importance.
## 2. Key Features
### 2.1 Power Monitoring
- **Precise Voltage Detection**: The TPS3420DDRYR is capable of accurately monitoring the power supply voltage. It can detect both over - voltage and under - voltage conditions with high precision. This is crucial for protecting sensitive electronic components from damage due to abnormal voltage levels. For example, in a microcontroller - based system, if the power supply voltage drops below a certain threshold, the TPS3420DDRYR can quickly detect it and take appropriate action.
- **Adjustable Thresholds**: Users have the flexibility to adjust the voltage detection thresholds according to their specific application requirements. This allows for customization and ensures that the device can be optimized for different power supply configurations. Whether it's a low - voltage system operating at 1.8V or a higher - voltage system at 5V, the TPS3420DDRYR can be configured to monitor the voltage accurately.
### 2.2 Reset Function
- **Power - On Reset (POR)**: When the power supply is first applied to the system, the TPS3420DDRYR generates a power - on reset signal. This signal ensures that all the components in the system are initialized properly and start operating in a known state. It helps to prevent erratic behavior and system malfunctions during the startup process.
- **Watchdog Timer**: The built - in watchdog timer is another important feature of the TPS3420DDRYR. It monitors the system's operation and if the system fails to provide a timely "kick" signal to the watchdog, it will generate a reset signal. This is useful for detecting software glitches or system hangs and can help to automatically recover the system, improving its overall reliability.
### 2.3 Low Power Consumption
- The TPS3420DDRYR is designed with low power consumption in mind. It has a very low quiescent current, which means that it consumes minimal power when in operation. This is especially important for battery - powered applications where power efficiency is a critical factor. By reducing the power consumption of the monitoring and reset functions, the overall battery life of the device can be extended.
### 2.4 Small Package Size
- It comes in a small and space - saving package, such as the DDRY package. This makes it suitable for applications where board space is limited, such as portable devices, wearables, and small - form - factor industrial control systems. The compact size allows for easy integration into existing circuit designs without taking up too much valuable board real estate.
## 3. Applications
### 3.1 Consumer Electronics
- **Smartphones and Tablets**: In these devices, the TPS3420DDRYR can be used to monitor the battery voltage and ensure that the system operates within the safe voltage range. It can also help to prevent system crashes due to power fluctuations, providing a more stable user experience.
- **Wearable Devices**: With their limited battery capacity and small form factors, wearables require efficient power management. The low - power consumption and small package size of the TPS3420DDRYR make it an excellent choice for monitoring the power supply and ensuring reliable operation of these devices.
### 3.2 Industrial
Images for reference
DRY-6-SON Pkg
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