The TS2431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation
- 40 to + 105 °C. The output voltage may be set to
any value between 2.5 and 24 V with an external
resistor bridge. Available in a SOT23-3L surface
mount package, the device can be implemented
in applications where space-saving is of utmost
importance.
Cathode
Reference
1
Anode
3
TS2431
2
Table 1.Device summary
Order codesTemperature rangePackagePackingPrecisionMarking
TS2431ILT
TS2431AILT1%L286
TS2431BILT0.5%L287
May 2012Doc ID 7961 Rev 31/11
This is information on a product in full production.
-40 to +105°CSOT23-3LTape and reel
2%L285
www.st.com
11
ContentsTS2431
Contents
1Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3
TS2431Absolute maximum ratings and operating conditions
1 Absolute maximum ratings and operating conditions
Table 2.Absolute maximum ratings
SymbolParameterValueUnit
VkaCathode to anode voltage25V
I
K
I
REF
P
T
std
ESD
T
LEAD
1. Pd has been calculated with Tamb = 25°C, Tjunction = 150°C, Rthjc = 110°C/W and Rthja = 340°C/W for
the SOT23-3 package.
2. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
3. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
Table 3.Operating conditions
Reverse breakdown current-100 to +150mA
Reference input current range-0.05 to +10mA
Power dissipation
d
(1)
SOT23-3L
360mW
Storage temperature-65 to +150°C
(3)
(2)
2kV
200V
Human body model (HBM)
Machine model (MM)
Lead temperature (soldering, 10 seconds)260°C
SymbolParameterValueUnit
V
KA
I
K
T
oper
1. Maximum power dissipation must be strictly observed to avoid damaging the component.
Cathode to anode voltageV
Cathode operating current
(1)
to 24V
REF
1 to 100mA
Operating free air temperature range- 40 to + 105°C
Doc ID 7961 Rev 33/11
Electrical characteristicsTS2431
2 Electrical characteristics
Table 4.Electrical characteristics (Tamb = 25 °C unless otherwise specified)
SymbolParameterTest conditionMin.Typ.Max.Unit
V
= V
K
, IK = 10 mA2.5
REF
TS2431 (2%)2.452.55
V
Reference input voltage
REF
TS2431A (1%)2.4752.525
TS2431B (0.5%)2.4882.512
0 °C < T < +70 °C1020
-40 °C < T < +105 °C2035
-40 °C < T < +105 °C50100ppm/°C
|ΔV
Reference input voltage deviation over
|
temperature
T
REF
C
= V
V
K
, IK = 10 mA
REF
Temperature coefficient
(1) (2)
(2)
T = 25 °C0.30.8
I
KMIN
ΔVref
------------ --- -
ΔVk
I
|ΔI
I
|Z
Minimum operating current
Ratio of change in reference input
voltage to change in cathode to anode
voltage
Reference input current
REF
REF
OFF
KA
= 10 mA, R1 = 10 kΩ, R2 = +
I
K
Reference input current deviation
|
= 10 mA, R1 = 10 kΩ, R2 = +
I
K
Off-state cathode currentVK = 24 V, V
|Reverse dynamic impedance
(3)
∞
(3)
∞
-40 °C < T < +105 °C1
= 10 mA
I
K
Vka = 24 to 2.5 V
0.32mV/V
T = 25 °C0.52.5
-40 °C < T < +105 °C3
-40 °C < T < +105 °C0.41.2µA
= GND10500nA
REF
V
= V
K
REF
ΔIK = 1 to 50 mA,
0.50.75W
f < 10 kHz
= 10 mA
I
E
N
Wide band noise
K
10 Hz < f < 10 kHz
300nV/√Hz
V
mV-40 °C < T < +85 °C1730
mA
µA
1. Limits are 100% production tested at 25° C. Limits over temperature are guaranteed through correlation and by design.
|ΔV
2.
3. Refer to
| is defined as the difference between the maximum and minimum values of V
REF
range.
Figure 4: Test circuit for Vka = Vref on page 5
.
obtained over the full temperature
REF
4/11Doc ID 7961 Rev 3
Loading...
+ 7 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.