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TS3431CIZ

P1-P3P4-P6P7-P9P10-P11
December 2004 Revision 2 1/11
■ Adjustable output voltage: 1.24 to 24V
■ Several precision @ 25°C
±2%, ±1%, ±0.5% and ±0.25%
■ Sink current capability: 0.4 to 100mA
■ Industrial temperature range: -40 to +125°C
■ Performances compatible with industry
standard TL431
Description
The TS3431 is a programmable shunt voltage
reference with guaranteed temperature stability
over the entire temperature range of operation
(-40 to +125°C). The output voltage may be set to
any value between 1.24V and 24V with an
external resistor bridge.
Available in SOT23-3 surface mount package, it
can be designed in applications where space
saving is a critical issue.
Applications
■ Computers
■ Instrumentation
■ Battery chargers
■ Switch mode power supply
■ Battery operated equipments
Pin Connections (top view)
Order Codes
L
SOT23-3L
(Plastic Micropackage)
Z
TO-92
(Plastic Package)
TO-92
(top view)
SOT23-3
(top view)
3
1
2
Cathode
Reference
Anode
TS3431
Part Number Temperature Range Package Packaging Marking
TS3431ILT/AILT/BILT/CILT
-40, +125°C
SOT23-3L Tape & Reel
L280-L281
L282-L283
TS3431IZ/AIZ/BIZ/CIZ
TO-92
Bulk
TS3431IZT/AIZT/BIZT/CIZT Tape & Reel
TS3431IZ-AP/AIZ-AP/BIZ-AP/CIZ-AP Ammo pack
TS3431
1.24V Programmable Shunt Voltage Reference
TS3431 Absolute Maximum Ratings
2/11
1 Absolute Maximum Ratings
Table 1. Key parameters and their absolute maximum ratings
Symbol Parameter Value Unit
V
KA
Cathode to Anode Voltage
25 V
I
K
Reverse Breakdown Current
-100 to +150 mA
I
REF
Reference Current
-0.05 to10 mA
P
D
Power Dissipation
1
SOT23-3
TO92
1) Pd has been calculated with T
amb
= 25°C and T
j
= 150°C and Rthjc = 66°C/W, Rthja = 200°C/W for the TO92 package
Rthjc = 110°C/W, Rthja = 340°C/W for the SOT23-3L package
360
625
mW
T
std
Storage Temperature
-65 to +150 °C
ESD
Human Body Model (HBM) 2 kV
Machine Model (MM) 200 V
Tlead Lead Temperature (soldering, 10 seconds) 250 °C
Table 2. Operating Conditions
Symbol Parameter Value Unit
I
K
Cathode Operating Current
0.5 to 100 mA
V
K
Cathode Operating Voltage
1.24 to 24 V
T
oper
Operating Free Air Temperature Range
-40 to +125 °C
Electrical Characteristics TS3431
3/11
2 Electrical Characteristics
Table 3. Tamb = 25°C (unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
K
Reference input voltage I
K
= 10mA TS3431 (2%) 1.215
1.24
1.265
V
TS3431A (1%) 1.228 1.252
TS3431B (0.5%) 1.234 1.246
TS3431C (0.25%) 1.237 1.243
∆V
K
Variation of reference input voltage over
temperature
0°C < T < +70°C 10
mV-40°C < T < +105°C 18
-40°C < T < +125°C 21
T
C
Temperature coefficient -40°C < T < +125°C
100 ppm/°C
I
KMIN
Minimum Operating Current T = 25°C 0.35 0.4
mA
-40°C < T < +125°C 0.5
Ratio of change in reference input volt-
age to change in cathode to anode volt-
age
I
K
=10mA
V
K
= 24 to 1.24V
1.2 1.5
mV/V
-40°C < T < +125°C 2
I
REF
Reference input current
I
K
=10mA, R1=10KΩ, R2=+
T=25°C 0.9 1.5
µA
-40°C < T < +125°C 2
∆I
REF
Reference input current deviation
I
K
=10mA, R1=10KΩ, R2=+
0°C < T < +70°C 0.5 1
µA
-40°C < T < +125°C 0.9 1.5
I
OFF
Off-state cathode current V
K
=24V T=25°C 35 500
nA-40°C < T < +105°C 1000
-40°C < T < +125°C 2000
R
KA
Reverse Static Impedance I
K
= 1 to 100mA
0.2 0.4
Ω
E
N
Wideband Noise I
K
= 10mA
1kHz < f < 100kHz
100 nV/
√Hz
Note: Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
∆Vref
∆Vka
----------------
∞
P1-P3P4-P6P7-P9P10-P11

TS3431CIZ

Mfr. #:
Buy TS3431CIZ
Manufacturer:
STMicroelectronics
Description:
IC VREF SHUNT ADJ SOT23-3
Lifecycle:
New from this manufacturer.
Delivery:
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