TS3005ITD1033

Overview

The TS3005ITD1033T is a single-supply silicon oscillator/timer from Silicon Labs, operating within a voltage range of 1.55V to 5.25V. It features an ultra-low supply current of 1.35µA at 49Hz and allows user-programmable output periods ranging from 1.7ms to 33hrs via a single external resistor. The device provides separate FOUT and PWMOUT signals with a 160Ω driver resistance. Packaged in a 10-pin TDFN (3x3mm) with an exposed paddle, it operates across a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low power consumption: 1.35µA typical supply current
• Wide programmable period range: 1.7ms to 33hrs using one resistor
• Separate buffered outputs for fixed frequency (FOUT) and pulse-width modulation (PWMOUT)
• High period accuracy: 3% with low drift of 0.02%/°C

Applications

• Portable and battery-powered equipment
• Low-parts-count nanopower oscillator
• Micropower clock generation and sequential timing
• Compact replacement for crystal and ceramic oscillators

Procurement Notes

Verify the specific ordering suffix 'T' for tape and reel packaging containing 3000 units. Confirm lead-free compliance status as per manufacturer specifications. Ensure the design accommodates the 10-pin TDFN footprint with appropriate thermal management for the exposed paddle.

Selection Notes

Select this component when ultra-low quiescent current is critical. Use the FDIV inputs to scale the base frequency set by RSET. For PWM applications, calculate CPWM based on desired pulse width and available drive current. Minimize capacitive loads on output pins to reduce transient power consumption.

Part Context

The TS3005 belongs to the CMOS timer family of NanoWatt Analog integrated circuits. It offers a 25% reduction in PCB area and significantly lower power consumption compared to other CMOS-based timers. It complements related models such as the TS3001, TS3002, TS3003, TS3004, and TS3006.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.