Overview
The TPL5110DDCR, produced by Texas Instruments, is a nano-power system timer designed for power gating in duty-cycled or battery-powered applications. This device integrates a low-power timer with an MOSFET driver, enabling significant power savings by drastically reducing the overall system standby current during sleep time. The TPL5110 is particularly useful in applications requiring periodic power-on sequences, such as in IoT devices, home automation sensors, and consumer electronics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 1.8 to 5.5 | V |
| Current Consumption at 2.5 V | 35 | nA (Typical) |
| Selectable Time Intervals | 100 ms to 7200 s | |
| Timer Accuracy | 1% | (Typical) |
| Operating Temperature | -40 to +105 | °C |
| Package Type | TSOT-23-6 | |
| Junction-to-ambient thermal resistance | 163 | °C/W |
Key Features
- Low Power Consumption: The TPL5110 consumes only 35 nA at 2.5 V, making it ideal for battery-powered systems and energy harvesting applications.
- Selectable Time Intervals: The device allows for selectable timing intervals ranging from 100 ms to 7200 s, set using an external resistance.
- Manual MOSFET Power On: A manual power-on feature is available by momentarily pulling the DELAY/M_DRV pin to VDD.
- One-Shot Feature: The TPL5110 can operate in one-shot mode where the DRV signal is sent out just once at power-on.
- Watchdog Functionality: The DONE pin allows for watchdog functionality, ensuring the microcontroller is working properly within the programmed time interval.
Applications
- Battery-Powered Systems: Ideal for systems that require periodic power-on sequences to conserve battery life.
- Internet of Things (IoT): Suitable for IoT devices that need to manage power efficiently.
- Intruder Detection and Tamper Detection: Used in security systems where periodic checks are necessary.
- Home Automation Sensors and Thermostats: Helps in managing power for sensors and thermostats in home automation systems.
- Consumer Electronics and Remote Sensors: Applicable in various consumer electronics and remote sensor applications.
Q & A
- What is the typical current consumption of the TPL5110 at 2.5 V?
The typical current consumption is 35 nA at 2.5 V.
- What is the range of selectable time intervals for the TPL5110?
The selectable time intervals range from 100 ms to 7200 s.
- How is the time interval set for the TPL5110?
The time interval is set using an external resistance (REXT) between the DELAY/M_DRV pin and ground.
- What is the purpose of the DONE pin in the TPL5110?
The DONE pin is driven by a microcontroller to signal that the microcontroller is working properly.
- Can the TPL5110 operate in one-shot mode?
- What is the operating temperature range of the TPL5110?
The operating temperature range is -40°C to +105°C.
- What package type is the TPL5110 available in?
The TPL5110 is available in a TSOT-23-6 package.
- How does the manual MOSFET power-on feature work?
The manual MOSFET power-on feature is activated by momentarily pulling the DELAY/M_DRV pin to VDD.
- What is the junction-to-ambient thermal resistance of the TPL5110?
The junction-to-ambient thermal resistance is 163 °C/W.
- In what types of applications is the TPL5110 commonly used?
The TPL5110 is commonly used in battery-powered systems, IoT devices, home automation sensors, and consumer electronics.
