TS4061
Precision micropower shunt voltage reference
Datasheet - production data
Description
627/
627/
Features
Fixed 1.225 V,1.25 V output voltages
Ultra low operating current: 10 µA at 25 °C
The TS4061 is a low power and high accuracy
shunt voltage reference providing a stable output
voltage over the industrial temperature range (-40
to +85 °C), with a maximum temperature
coefficient of 35 ppm/°C. It is available in 0.1%
and 0.2% initial accuracy versions. The SOT3233L and SOT23-3L packages can be designed in
applications where space saving is a critical
issue. The very low operating current is a key
advantage for power restricted designs. The
TS4061 is very stable and can be used in a broad
range of application conditions.
High precision @ 25 °C: +/-0.1% (TS4061A),
+/- 0.2% (TS4061B)
Very low LF noise: typ.10 µ Vp-p
Stable when used with capacitive loads
Industrial (-40 to +85 °C) temperature range
35 ppm/°C max. temperature coefficient
Available in SOT23-3L and SOT323-3L
packages
Applications
Portable, battery-operated equipment
Data acquisition systems
Instrumentation
February 2018
This is information on a product in full production.
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www.st.com
Contents
TS4061
Contents
1
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1
SOT23-3L, TS4061 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.2
SOT323-3L, TS4061 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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1
Pin configuration
Pin configuration
Figure 1. Pin configuration SOT23-3L, SOT323-3L (top view)
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Note:
The NC pin must be left unconnected or connected to anode.
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Maximum ratings
2
TS4061
Maximum ratings
Table 1. Absolute maximum ratings
Symbol
Parameter
Value
Unit
Ik
Reverse breakdown current
20
mA
If
Forward current
15
mA
500
mW
-65 to +150
°C
2
kV
Machine model (MM)
200
V
Charged device model
1500
V
Lead temperature (soldering) 10 sec
260
°C
Max. junction temperature
+150
°C
(1)
Pd
Power dissipation
Tstd
Storage temperature
Human body model (HBM)
ESD
Tlead
Tj
1. Pd has been calculated with Tamb = 25 °C and Tjmax = 150 °C
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 2. Thermal data
Symbol
Parameter
SOT323-3L
SOT23-3L
Unit
RthJA
Thermal resistance junction-ambient
246
242
°C/W
RthJC
Thermal resistance junction-case
171
103
°C/W
Table 3. Operating conditions
Symbol
4/15
Parameter
Value
Unit
Ikmin
Minimum operating current
10
µA
Ikmax
Maximum operating current
15
mA
Toper
Operating free air temperature range
-40 to +85
°C
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TS4061
3
Electrical characteristics
Electrical characteristics
Limits are 100% production tested at 25 °C. Limits over full temperature range are
guaranteed through correlation and by design. Ik = 10 µA, Tamb = 25 °C (unless otherwise
specified).
Table 4. Electrical characteristics for TS4061
Symbol
Parameter
Reverse breakdown
voltage (Vk = 1.225 V)
Vk
Reverse breakdown
voltage (Vk = 1.25 V)
Ikmin
Minimum operating
current
Vk/T
Average temperature
coefficient
Vk/Ik
Rka
Hys
Noise
Test conditions
Min.
Typ.
Max.
Ik = 10 A,
TS4061A
1.2237
Ik = 10 A,
TS4061B
1.2225
1.2275
Ik = 10 A,
TS4061A
1.2487
1.2512
Ik = 10 A,
TS4061B
1.2475
Tamb = 25 °C
Unit
1.2262
1.225
V
1.25
V
1.2525
7.5
-40 °C < Tamb < +85 °C
10
A
12
ppm/°
C
10 A < Ik < 15 mA
20
35
Reverse breakdown
voltage change with
operating current
range
Ikmin < Ik < 1 mA
-40 °C < Tamb < +85 °C
0.2
1
1mA < Ik < 15 mA
-40 °C < Tamb < +85 °C
1.7
4
Static impedance
Ik = 10 A to 10 mA
0.15
0.3
Ik = 10 A
120
ppm
Wideband noise
Ik = 10 A 10 Hz < f< 10 kHz
95
VRMS
Low frequency noise
Ik = 10 A 0.1 Hz < f< 10 Hz
10
µVp-p
Thermal
hysteresis(1)
mV
Ω
1. Thermal hysteresis is defined as the difference in voltage measured at +25 °C after cycling to -40 °C and the measurement
at +25 °C after cycling to temperature +85 °C.
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Typical performance characteristics
4
TS4061
Typical performance characteristics
(The following plots are referred to the typical application circuit and, unless otherwise
noted, at TA = 25 °C)
Figure 2. VK change vs temperature
(1.225 V version)
Figure 3. VK change vs temperature
(1.25 V version)
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Figure 4. IKmin minimum current for regulation
Figure 5. IKmin minimum current for regulation
vs temperature
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Figure 6. Output impedance vs frequency
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Figure 7. Forward characteristics
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TS4061
Typical performance characteristics
Figure 8. Start-up waveform (no Cload)
Figure 9. Start-up waveform (Cload = 100 nF)
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Figure 10. Low frequency noise
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Package mechanical data
5
TS4061
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
5.1
SOT23-3L, TS4061
Figure 11. SOT23-3L mechanical drawings
32$B
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TS4061
Package mechanical data
Table 5. SOT23-3L mechanical data
mm
Dim.
Min.
Typ.
Max.
A
0.89
1.12
A1
0.013
0.10
A2
0.88
b
0.37
b1
0.37
c
0.085
0.18
c1
0.085
0.16
D
2.80
3.04
E
2.10
2.64
E1
1.20
1.40
0.95
0.50
0.40
e
0.95 BSC
e1
1.90 BSC
*L
0.28
L1
1.02
0.38
0.45
0.48
0.55
R
0.05
R1
0.05
0°
8°
s
0.45
0.60
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Package mechanical data
TS4061
Figure 12. SOT23-3L recommended footprint
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TS4061
5.2
Package mechanical data
SOT323-3L, TS4061
Figure 13. SOT323-3L drawings
Table 6. SOT323-3L mechanical data
mm
Dim.
Typ.
Min.
Max.
A
0.80
1.10
A1
0.00
0.10
b
0.25
0.40
c
0.10
0.18
D
1.80
2.20
E
1.15
1.35
0.60
0.70
H
1.80
2.40
L
0.10
0.30
e
0.65
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Package mechanical data
TS4061
Figure 14. SOT323-3L recommended footprint
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6
Ordering information
Ordering information
Table 7. Order codes
Order codes
Output voltage (V)
TS4061AILT-1.25
1.25
TS4061AILT-1.225
1.225
TS4061AICT-1.25
1.25
TS4061AICT-1.225
1.225
TS4061BILT-1.25
1.25
TS4061BILT-1.225
1.225
TS4061BICT-1.25
1.25
TS4061BICT-1.225
1.225
Precision (%)
Package
Temperature range (°C)
0.1
SOT23-3L
-40 to +85
0.1
SOT323-3L
-40 to +85
0.2
SOT23-3L
-40 to +85
0.2
SOT323-3L
-40 to +85
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Revision history
7
TS4061
Revision history
Table 8. Document revision history
14/15
Date
Revision
Changes
21-Jul-2014
1
Initial release.
01-Feb-2018
2
Updated: Table 5, Figure 11, Figure 12 and Note: The NC pin must
be left unconnected or connected to anode.
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TS4061
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