TS3005DB Datasheet, PDF (1/4 Pages) Touchstone Semiconductor Inc – A 1.55V to 5.25V, 1.35μA, 1.7ms to 33hrs Silicon Timer

TS3005 Demo Board
A 1.55V to 5.25V, 1.35µA, 1.7ms to 33hrs Silicon Timer
FEATURES
 5V Supply Voltage
 FOUT/PWMOUT Output Period Range:
o 47.4ms ≤ t_FOUT ≤ 27.6hrs
o RSET = 10MΩ
 PWMOUT Output Duty Cycle:
o 63% for FDIV2:0 = 000
o CPWM = 0.1µF
 PWMOUT Duty Cycle Reduction
o 1MΩ Potentiometer
 Fully Assembled and Tested
 2in x 2in 2-layer circuit board
COMPONENT LIST
DESIGNATION QTY
C1
1
C2
1
R1, R2
2
PWM_ADJ
1
U1
1
VDD,F_OUT,
3
PWM_OUT
J1, FDIV0, FDIV1,
3
FDIV2
DESCRIPTION
0.1µF ±10%
capacitor (0805)
4.7µF ±10%
capacitor (0805)
10MΩ ± 1% (0805)
1MΩ Potentiometer
TS3005
Test points
Jumper
DESCRIPTION
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 Touchstone Semi
oscillator/timer 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 Touchstone’s CMOS timer family in its
“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 back-
side paddle.
Product datasheet and additional documentation can
be found on the factory web site at
www.touchstonesemi.com.
ORDERING INFORMATION
Order Number
TS3005DB
Description
TS3005
Demo Board
Figure 1. TS3005 Demo Board Circuit
Page 1
© 2013 Touchstone Semiconductor, Inc. All rights reserved.