Overview
The TPL5111DDCT, produced by Texas Instruments, is a nano-power system timer designed for power gating in duty-cycled or battery-powered applications. This component is particularly useful in energy harvesting and wireless sensor applications, enabling the use of significantly smaller batteries. The TPL5111 provides selectable timing intervals ranging from 100 ms to 7200 s, making it versatile for various power management needs.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | 6-Lead SOT-23 | DDC Package |
| Body Size | 3.00 mm × 3.00 mm | NOM |
| Supply Voltage (VDD) | Supply voltage pin | - |
| Ground (GND) | Ground pin | - |
| DELAY/M_DRV Pin | Time interval configuration and manual Power ON input | - |
| DONE Pin | Logic Input for watchdog functionality | - |
| DRVn Pin | Power Gating output signal | Active HIGH |
| EN/ONE_SHOT Pin | Select mode of operation (Timer or One-Shot) | - |
| Timing Intervals | Selectable timing from 100 ms to 7200 s | 100 ms to 7200 s |
| Power Consumption | Typical current consumption | 35 nA |
| Timer Accuracy | Typical accuracy of the timer | 1% |
| Rise/Fall Time (DRVn) | Rise and fall time of DRVn signal with 50 pF capacitive load | 50 ns each |
Key Features
- Low Power Consumption: The TPL5111 consumes only 35 nA, making it ideal for battery-powered and energy harvesting applications.
- Selectable Timing Intervals: The component offers selectable timing intervals from 100 ms to 7200 s, providing flexibility in power management.
- Power Gating: The TPL5111 can be configured in either timer mode or one-shot mode, allowing for periodic or single pulse power gating.
- Manual Power ON Functionality: A manual power ON can be triggered by momentarily pulling the DELAY/M_DRV pin to VDD.
- Watchdog Functionality: The DONE pin allows a microcontroller to signal successful processing, ensuring the system remains operational.
- Compact Package: Available in a 6-Lead SOT-23 package, making it suitable for space-constrained designs.
Applications
- Energy Harvesting: Ideal for applications where energy is harvested from the environment, such as solar, wind, or vibration energy.
- Wireless Sensors: Suitable for wireless sensor networks where power efficiency is crucial.
- Battery-Powered Devices: Used in devices that require long battery life, such as IoT devices, wearable electronics, and remote monitoring systems.
- Power-Cycled Systems: Applicable in systems that require periodic power cycling to conserve energy.
Q & A
- What is the primary function of the TPL5111?
The TPL5111 is a nano-power system timer designed for power gating in duty-cycled or battery-powered applications.
- What are the selectable timing intervals for the TPL5111?
The TPL5111 offers selectable timing intervals from 100 ms to 7200 s.
- How does the TPL5111 consume power?
The TPL5111 consumes only 35 nA, making it highly energy-efficient.
- What is the purpose of the EN/ONE_SHOT pin?
The EN/ONE_SHOT pin selects the mode of operation between timer mode and one-shot mode.
- How is the manual Power ON function triggered?
The manual Power ON function is triggered by momentarily pulling the DELAY/M_DRV pin to VDD.
- What is the role of the DONE pin?
The DONE pin is driven by a microcontroller to signal that the microcontroller is working properly.
- What is the typical accuracy of the TPL5111 timer?
The typical accuracy of the TPL5111 timer is 1%.
- What is the rise and fall time of the DRVn signal?
The rise and fall time of the DRVn signal is 50 ns each with a 50 pF capacitive load.
- In what package is the TPL5111 available?
The TPL5111 is available in a 6-Lead SOT-23 package.
- What are some common applications of the TPL5111?
Common applications include energy harvesting, wireless sensors, battery-powered devices, and power-cycled systems.
