TS3004
A 1.55V to 5.25V, 1.9µA, 3.3µs to 233s Silicon Timer
FEATURES
Ultra Low Supply Current: 1.9μA at 25kHz
Supply Voltage Operation: 1.55V to 5.25V
Single Resistor Sets FOUT at 50% Duty Cycle
3-pin User-Programmable FOUT Period:
3.3µs ≤ t
FOUT
≤ 233s
FOUT Period Accuracy: 3%
FOUT Period Drift: 0.02%/ºC
Single Resistor Sets Output Frequency
Separate PWM Control and Buffered Output
FOUT/PWMOUT Output Driver Resistance:
160Ω
DESCRIPTION
The TS3004 is a single-supply, second-generation
Touchstone Semi oscillator/timer fully specified to
operate at a supply voltage range of 1.55V to 5.25V
while consuming less than 2.4μA(max) supply
current. Requiring only a resistor to set the base
output frequency (or output period) at 25kHz (or
40µs) with a 50% duty cycle, the TS3004
timer/oscillator is compact, easy-to-use, and versatile.
Optimized for ultra-long life, low frequency,
battery-powered/portable applications, the TS3004
joins the TS3001, TS3002, TS3003 and TS3006 in
Touchstone’s CMOS timer family in its “NanoWatt
Analog™” series of high-performance analog
integrated circuits.
The TS3004 output period can be user-adjusted from
3.3µs to 233s without additional components. In
addition, the TS3004 represents a 25% reduction in
pcb area and a factor-of-10 lower power consumption
over
other
CMOS-based
integrated
circuit
oscillators/timers. When compared against industry-
standard 555-timer-based products, the TS3004
offers up to 84% reduction in pcb area and over three
orders of magnitude lower power consumption.
The TS3004 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
back-side paddle.
APPLICATIONS
Portable and Battery-Powered Equipment
Low-Parts-Count Nanopower Oscillator
Compact Micropower Replacement for Crystal and
Ceramic Oscillators
Micropower Pulse-width Modulation Control
Micropower Pulse-position Modulation Control
Micropower Clock Generation
Micropower Sequential Timing
TYPICAL APPLICATION CIRCUIT
TS3004 Flashing Railroad Lights Circuit
The Touchstone Semiconductor logo and “NanoWatt Analog” are
registered trademarks of Touchstone Semiconductor, Incorporated.
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© 2013 Touchstone Semiconductor, Inc. All rights reserved.
TOUCHSTONE [ TOUCHSTONE SEMICONDUCTOR INC ]
