TS3005 1.7ms to 33hrs Silicon

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The demo board for the TS3005 is a completely assembled and tested circuit board that can be used for evaluating the TS3005. The TS3005 is a single-supply, second-generation oscillator/timer that is fully specified to operate at a supply voltage range of 1.55V to 5.25V while consuming less than 1.5μA (max) supply current. Requiring only a resistor to set the base output frequency (or output period) at 49Hz (or 20.5ms) with a 50% duty cycle, the TS3005 timer/oscillator is compact, easy-to-use, and versatile. Optimized for ultra-long life, low frequency, battery-powered/portable applications, the TS3005 joins the TS3001, TS3002, TS3003, TS3004, and TS3006 in the CMOS timer family of the “NanoWatt Analog™” series of high-performance analog integrated circuits.

The TS3005 requires only an RSET = 10MΩ resistor to set the FOUT/PWMOUT output period range to between 47.4ms and 27.6 hours. To change the output period, an FDIV2:0 combination can be selected. With an on-board 0.1μF CPWM capacitor, the duty cycle of PWMOUT is set at approximately 63%. Further reduction of the duty cycle is available with an on-board 1MΩ potentiometer. The complete circuit is designed at a supply voltage of 5V. The TS3005 is fully specified over the -40°C to +85°C temperature range and is available in a low-profile, 10-pin 3x3mm TDFN package with an exposed backside paddle.

Symmetry Electronics is an authorized Silicon Labs distributor.


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5V Supply Voltage
FOUT/PWMOUT Output Period Range:
o 47.4ms = tFOUT = 27.6hrs
o RSET = 10MO
PWMOUT Output Duty Cycle:
o 63% for FDIV2:0 = 000
o CPWM = 0.1F
PWMOUT Duty Cycle Reduction
o 1MO Potentiometer
Fully Assembled and Tested
2in x 2in 2-layer circuit board


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