TPL5111DDCT

Overview

The TPL5111DDCT is a programmable system timer manufactured by Texas Instruments, designed for ultra-low power applications. It operates within a supply voltage range of 1.8 V to 5 V and consumes only 35 nA of supply current. The device features an integrated MOSFET driver capable of sourcing up to 20 mA, allowing direct control of external power switches. Encased in a compact SOT-23-THIN-6 package, it supports an operating temperature range from -40°C to +105°C. This component serves as a nano-powered timer with drive capabilities for efficient energy management in battery-operated systems.

Feature Summary

• Ultra-low quiescent current consumption of 35 nA
• Integrated MOSFET driver with 20 mA output capability
• Programmable timing intervals via external resistor
• Wide operating voltage range from 1.8 V to 5 V

Applications

• Battery-powered sensor nodes requiring periodic wake-up
• Low-power IoT devices with sleep/wake cycles
• Energy harvesting systems managing power states
• Portable medical devices needing extended battery life

Procurement Notes

Verify the specific suffix 'DDCT' corresponds to the cut-tape packaging variant when ordering. Confirm that the required timing interval can be achieved with available external resistor values. Ensure the design accounts for the 20 mA driver limit if controlling higher load currents. Check for RoHS compliance status relevant to the manufacturing batch.

Selection Notes

Select the TPL5111DDCT over standard timers when sub-microampere standby current is critical. The integrated driver eliminates the need for external transistors in low-current applications. Verify that the external timing resistor tolerance meets the system's accuracy requirements. Consider the SOT-23-THIN-6 footprint constraints during PCB layout.

Part Context

This part belongs to the TPL511x family of nano-powered system timers from Texas Instruments. It shares architectural similarities with the TPL5110 but includes an integrated driver stage. The 'DDCT' designation indicates the SOT-23-THIN-6 package with cut-tape reel packaging. It complements other low-power components like the TPS61029 boost converter in complete power management solutions.

Replacement Considerations

The TPL5110DDCT is a pin-compatible alternative without the integrated MOSFET driver. Verify if the external driver circuitry in the existing design can accommodate the removal of the internal driver if switching to the TPL5110. No other direct substitutes are confirmed in public documentation.