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
oscillator/timer fully specified to operate over 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
the CMOS timer family of “NanoWatt Analog™” 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
Page 1
© 2014 Silicon Laboratories, Inc. All rights reserved.
TS3004
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND................................................................. -0.3V to +5.5V
PWM_CNTRL to GND ................................................ -0.3V to +5.5V
FOUT, PWMOUT to GND .......................................... -0.3V to +5.5V
RSET to GND............................................................. -0.3V to +2.5V
CPWM to GND ........................................................... -0.3V to +5.5V
FDIV to GND .............................................................. -0.3V to +5.5V
Continuous Power Dissipation (T
A
= +70°C)
10-Pin TDFN (Derate at 13.48mW/°C above +70°C) ... 1078mW
Operating Temperature Range ................................. -40°C to +85°C
Storage Temperature Range .................................. -65°C to +150°C
Lead Temperature (Soldering, 10s)...................................... +300°C
Electrical and thermal stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These
are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections
of the specifications is not implied. Exposure to any absolute maximum rating conditions for extended periods may affect device reliability and
lifetime.
PACKAGE/ORDERING INFORMATION
ORDER NUMBER
PART
CARRIER QUANTITY
MARKING
TS3004ITD1033
3004I
TS3004ITD1033T
Tape
& Reel
Tape
& Reel
-----
3000
Lead-free Program:
Silicon Labs supplies only lead-free packaging.
Consult Silicon Labs for products specified with wider operating temperature ranges.
Page 2
TS3004 Rev. 1.0
TS3004
ELECTRICAL CHARACTERISTICS
V
DD
= 3V, V
PWM_CNTRL
= V
DD
, R
SET
= 4.32MΩ, R
LOAD(FOUT)
= Open Circuit, C
LOAD(FOUT)
= 0pF, C
LOAD(PWM)
= 0pF, C
PWM
= 47pF, FDIV2:0 = 000 unless
otherwise noted. Values are at T
A
= 25°C unless otherwise noted. See Note 1.
PARAMETER
Supply Voltage
Supply Current
SYMBOL
V
DD
I
DD
CONDITIONS
CPWM = V
DD
MIN
1.55
-40°C
≤
T
A
≤
85°C
3.3
-40°C
≤
T
A
≤
85°C
FOUT Period
FOUT Period Line
Regulation
FOUT Duty cycle
FOUT Period
Temperature
Coefficient
PWMOUT Duty Cycle
PWMOUT Duty Cycle
Line Regulation
C
PWM
Sourcing Current
UVLO Hysteresis
FOUT, PWMOUT
Rise Time
FOUT, PWMOUT
Fall Time
FOUT Jitter
RSET Pin Voltage
FDIV Input Current
V(RSET)
I
FDIV
-40°C
≤
T
A
≤
85°C
∆t
FOUT
/∆T
DC(PWMOUT)
ΔDC(PWMOUT)/V
I
CPWM
V
UVLO
t
RISE
t
FALL
37
15
t
FOUT
∆t
FOUT
/V
1.55V
≤
V
DD
≤
5.25V
49
0.02
41.6
-3
-40°C
≤
T
A
≤
85°C
930
810
97
150
10
10
0.001
0.3
10
20
250
1050
1150
48
24
-40°C
≤
T
A
≤
85°C
39
38
40.1
0.17
51
TYP
1.9
MAX
5.25
2.4
2.7
3.6
4.5
41.2
42
UNITS
V
µA
µs
%/V
%
%/°C
%
%
nA
nA
mV
ns
ns
%
V
nA
V
PWM_CNTRL
= 0V
1.55V < V
DD
< 5.25V, FDIV2:0 = 000
FDIV2:0 = 000, 001
FDIV2:0 000, 001
(V
DD
=1.55V) – (V
DD
_
SHUTDOWN VOLTAGE
)
See Note 2, C
L
= 15pF
See Note 2, C
L
= 15pF
See Note 3
Maximum Oscillator
Fosc
RSET= 360K
300
kHz
Frequency
High Level Output
I
OH
= 1mA
160
mV
Voltage, FOUT and
V
DD
- V
OH
PWMOUT
Low Level Output
Voltage, FOUT and
V
OL
I
OL
= 1mA
140
mV
PWMOUT
Dead Time
T
DT
FOUT edge falling and PWMOUT edge rising
106
ns
Note 1:
All devices are 100% production tested at T
A
= +25°C and are guaranteed by characterization for T
A
= T
MIN
to T
MAX
, as specified.
Note 2:
Output rise and fall times are measured between the 10% and 90% of the V
DD
power-supply voltage levels. The specification is based
on lab bench characterization and is not tested in production.
Note 3:
Timing jitter is the ratio of the peak-to-peak variation of the period to the mean of the period. The specification is based on lab bench
characterization and is not tested in production.
TS3004 Rev. 1.0
Page 3
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