TS3001
A 1V/1µA Easy-to-Use Resistor-Tuned Silicon Oscillator/Timer
FEATURES
Ultra Low Supply Current: 1µA at 25kHz
Supply Voltage Operation: 0.9V to 1.8V
Programmable Frequency Range:
o
5.2kHz
≤
FOUT
≤
90kHz
FOUT Period Drift: 0.021%/°C
PWMOUT Duty Cycle Range: 12% to 90%
Single Resistor Sets Output Frequency
Output Driver Resistance: 160Ω
DESCRIPTION
The TS3001 is a single-supply CMOS oscillator fully
specified to operate at 1V while consuming a 1µA
supply current at an output frequency of 25kHz. This
oscillator is compact, easy-to-use, and versatile.
Optimized for ultra-long life, battery-powered
applications, the TS3001 joins the TS3002 CMOS
oscillator in the “NanoWatt Analog™” high-
performance analog integrated circuits portfolio. The
TS3001 can operate from single-supply voltages from
0.9V to 1.8V.
Requiring only a resistor to set the output frequency,
the TS3001 represents a 66% reduction in pcb area
and a factor-of-10 reduction in power consumption
over other CMOS-based integrated circuit oscillators.
When compared against industry-standard 555-timer-
based products, the TS3001 offers up to 93%
reduction in pcb area and four orders of magnitude
lower power consumption.
The TS3001 is fully specified over the -40°C to +85°C
temperature range and is available in a low-profile, 8-
pin 2x2mm TDFN package with an exposed back-
side paddle.
APPLICATIONS
Portable and Battery-Powered Equipment
Low-Parts-Count Nanopower Oscillator
Compact Nanopower Replacement for Crystal and
Ceramic Oscillators
Nanopower Pulse-width Modulation Control
Nanopower Pulse-position Modulation Control
Nanopower Clock Generation
Nanopower Sequential Timing
TYPICAL APPLICATION CIRCUIT
Table 1: FOUT vs R
SET
R
SET
(MΩ)
1
2.49
4.32
6.81
9.76
FOUT (kHz)
110
44
25.5
16
11
Page 1
© 2014 Silicon Laboratories, Inc. All rights reserved.
TS3001
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND.................................................................... -0.3V to +2V
V
CNTRL
to GND ............................................................... -0.3V to +2V
RSET to GND................................................................ -0.3V to +2V
FOUT, PWMOUT to GND ............................................. -0.3V to +2V
Short Circuit Duration FOUT, PWMOUT to GND or V
DD
.................................................................................. Continuous
Continuous Power Dissipation (T
A
= +70°C)
8-Pin TDFN (Derate at 23.8mW/°C above +70°C) ....... 1951mW
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
TS3001ITD822
AAG
TS3001ITD822T
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
TS3001 Rev. 1.0
TS3001
ELECTRICAL CHARACTERISTICS
V
DD
= 1V, V
CNTRL
= V
DD
, R
SET
= 4.32MΩ, R
LOAD(FOUT)
= Open Circuit, C
LOAD(FOUT)
= 0pF, C
LOAD(PWM)
= 0pF 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
V
CNTRL
= 0.15 x V
DD
FOUT Period
FOUT Period Line
Regulation
FOUT Period
Temperature Coefficient
PWMOUT Duty Cycle
FOUT, PWMOUT
Rise Time
FOUT, PWMOUT
Fall Time
FOUT Jitter
RSET Pin Voltage
CNTRL Output Current
PWMOUT Enable
PWMOUT Disable
High Level Output
Voltage, FOUT and
PWMOUT
Low-level Output
Voltage, FOUT and
PWMOUT
V(RSET)
I
CNTRL
V
PWM_EN
V
PWM_DIS
V
DD
- V
OH
(V
DD
- V
CNTRL
), 0.9V < V
DD
< 1.8V
(V
DD
- V
CNTRL
), 0.9V < V
DD
< 1.8V
I
OH
= 1mA
160
-40°C
≤
T
A
≤
85°C
375
131
t
FOUT
∆t
FOUT
/V
∆t
FOUT
/∆T
DC(PWMOUT)
t
RISE
t
FALL
V
CNTRL
= 0.03 x V
DD
V
CNTRL
= 0.15 x V
DD
V
CNTRL
= 0.27 x V
DD
See Note 2, C
L
= 15pF
See Note 2, C
L
= 15pF
See Note 3
6
45
84
1V
≤
V
DD
≤
1.8V
CONDITIONS
MIN
0.9
-40°C
≤
T
A
≤
85°C
2.1
-40°C
≤
T
A
≤
85°C
-40°C
≤
T
A
≤
85°C
38.5
36.8
1.8
0.021
10.5
49.8
91
8.6
7.9
0.08
0.3
25
45
100
15
54.2
98
TYP
1
1
MAX
1.8
1.5
2.8
3.7
5.4
41.6
44.6
UNITS
V
µA
µs
%/V
%/°C
%
ns
ns
%
V
nA
mV
mV
mV
V
OL
I
OL
= 1mA
140
mV
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.
TS3001 Rev. 1.0
Page 3
TS3001
TYPICAL PERFORMANCE CHARACTERISTICS
V
DD
= 1V, V
CNTRL
= V
DD
, R
SET
= 4.32MΩ, R
LOAD(FOUT)
= Open Circuit, C
LOAD(FOUT)
= 5pF, unless otherwise noted. Values are at T
A
= 25°C
unless otherwise noted.
Supply Current vs FOUT Period
2.5
41
FOUT Period vs Temperature
SUPPLY CURRENT - µA
2
PERIOD - µs
0
40
80
120
160
200
40.5
1.5
40
1
39.5
0.5
39
-40
-15
10
35
60
85
PERIOD - µs
Supply Current vs C
LOAD(FOUT)
TEMPERATURE - ºC
Supply Current vs Temperature
1.5
SUPPLY CURRENT - µA
1.36
2
SUPPLY CURRENT - µA
1.8
1.6
1.4
1.2
1
0.8
0
10
20
C
LOAD
- pF
FOUT Period vs Supply Voltage
40.4
30
40
1.22
1.08
0.94
0.8
-40
-15
10
35
60
85
TEMPERATURE - ºC
Start-up Time vs Supply Voltage
1.8
40.2
PERIOD - µs
START-UP TIME - ms
1.66
1.52
40
1.38
39.8
1.24
39.6
0.9
1.05
1.2
1.35
1.5
1.65
1.8
1.1
0.9
1.2
1.5
1.8
SUPPLY VOLTAGE - Volt
SUPPLY VOLTAGE - Volt
Page 4
TS3001 Rev. 1.0
TS3001
TYPICAL PERFORMANCE CHARACTERISTICS
V
DD
= 1V, V
CNTRL
= V
DD
, R
SET
= 4.32MΩ, R
LOAD(FOUT)
= Open Circuit, C
LOAD(FOUT)
= 5pF, unless otherwise noted. Values are at T
A
= 25°C
unless otherwise noted.
Supply Current Distribution
Period vs R
SET
200
160
PERIOD - µs
35%
30%
PERCENT OF UNITS - %
0
4
8
12
16
20
25%
20%
15%
10%
5%
0
0%
0.97
0.99
1.01
1.03
120
80
40
R
SET
- MΩ
SUPPLY CURRENT - µA
FOUT Transient Response
V
DD
= 1V, C
LOAD
= 47pF
FOUT Transient Response
V
DD
= 1.5V, C
LOAD
= 47pF
FOUT
200mV/DIV
5µs/DIV
FOUT
500mV/DIV
5µs/DIV
FOUT and PWMOUT Transient Response
V
DD
= 1V, V
CNTRL
= 0.035 x V
DD
, C
LOAD
= 22pF
FOUT and PWMOUT Transient Response
V
DD
= 1.5V, V
CNTRL
= 0.035 x V
DD
, C
LOAD
= 22pF
FOUT
500mV/DIV
PWMOUT
500mV/DIV
5µs/DIV
PWMOUT
1V/DIV
FOUT
1V/DIV
5µs/DIV
TS3001 Rev. 1.0
Page 5
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