SGS Thomson Microelectronics TS432ILT, TS432AILT, TS432 Datasheet
TS432
1.24V ADJUSTABLE SHUNT VOLTAGE REFERENCE
■ 1.24V TYP OUTPUT VOLTAGE
■ ULTRA LOW OPERATING CURRENT :
60µA maximum at 25°C
■ HIGH PRECISION @ 25°C
+/- 1%
+/- 0.5%
■ HIGH STABILITY WHEN USED WITH
CAPACITIVE LOADS
■ INDUSTRIAL TEMPERATURE RANGE:
-40 to +85°C
■ 100ppm/°C TEM PER ATURE COEFF IC IENT
DESCRIPTION
The TS432 is an adjustable low power shunt
voltage reference providing an output voltage from
1.24V to 10V over the industrial temperature
range (-40 to +85°C). Available in SOT23-3
surface mount package, it can be designed in
applications where space saving is a critical issue.
The low operating current is a key advantage for
power restricted designs. In addition, the TS432 is
very stable and can be used in a broa d range of
application conditions.
L
SOT23-3L
(Plastic Micropacka ge)
PIN CONNECTIONS (top view)
APPLICATION
■ Computers
■ Instrumentation
■ Battery chargers
■ Switch Mode Power Supply
■ Battery operated equipments
ORDER CODE
Precision SOT23-3 SOT23 Marking
1% TS432ILT L235
0.5% TS432AILT L236
Single temperature range: -40 to +85°C
LT = Tiny Package (SOT23-3) - only available in Tape & Reel (LT)
December 2002
SOT2 3-3
Ref
Reference
A
Anode
K
Cathode
1/7
TS432
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
Cathode voltage 12 V
K
I
Cathode current -10 to +20 mA
K
I
R
T
LEAD
T
ESD Human Body Model (HBM) 1.5 kV
1. Pd has been ca l culated wi th T
OPERATING CONDITIONS
Symbol Parameter Value Unit
T
Reference input current -0.05 to +3 mA
REF
P
D Power dissipation
Thermal resistance junction to ambient for SOT23-3 360 °C/W
THJA
1)
SOT23-3
340 mW
Lead temperature (soldering 10 seconds) 250 °C
Storage temperature -65 to +150 °C
STG
T
Junction temperature 150 °C
J
Machine Model (MM) 150 V
= 25°C, Tj = 150°C and Rth j a = 360°C/W fo r the SOT23-3L package
amb
V
Cathode voltage 1.24 to 10 V
K
I
Cathode current 60µ to 12m A
K
Ambient temperature -40 to +85 °C
AMB
ELECTRICAL CHARACTERISTICS
T
= 25°C (unless otherwise specified)
amb
Symbol Parameter Test Condition Min. Typ. Max. Unit
I
V
REF
V
∆
REF
I
KMIN
V
∆
REF
V
∆
REF
V
∆
I
REF
I
OFF
R
KA
K
VH
E
N
Reference voltage
Reference voltage tolerance over
temperature
Minimum operating current
Reverse breakdown voltage change
with operating current range
/
Reference voltage change with output
voltage change
K
Reference input current
Off-state cathode current
Static impedance
Long term stability
Wide band noise
= 100µA, VK=V
K
REF
TS432 (1%) 1.228 1.252
TS432A (0.5%) 1.234 1.246
I
= 100µA, VK=V
K
= 25°C
T
amb
-40°C < T
I
KMIN
-40°C < T
1mA < I
-40°C < T
I
= 10mA, VK=10V to V
K
-40°C < T
=10mA, R1=10K
I
K
-40°C < T
V
REF
-40°C < T
I
∆
I
= 100µA, t = 1000hrs
K
I
= 100µA 100Hz < F < 10kHz
K
AMB
< IK < 1mA
AMB
< 12mA
K
AMB
AMB
AMB
=0, VK=10V
AMB
= 100µA to 12mA
K
REF
< +85°C
< +85°C
< +85°C
< +85°C
Ω,
< +85°C
< +85°C
REF
R2=+
∞
1.24
716mV
40 60
65
0.7 1.5
2
24
mV
6
1.8 2.5
mV/V
3
50 100
200
1 100
150
0.25 0.5
120 ppm
200 nV/√Hz
V
µ
nA
nA
Ω
A
Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.
2/7
TS432
Reference voltage vs tempera ture
1.252
1.248
VK = V
1.244
1.240
1.236
Reference Voltage (V)
1.232
1.228
-40 0 40 80 120
Temperature (°C)
REF
IK = 100µA
Cathode voltage vs cathode curren t
10
VK = V
5
0
Cathode curren t (mA)
K
I
-5
T
AMB
REF
= +25°C
Test circuit for VK = V
REF
Input
Ik
K
V
VREF
Cathode voltage vs cathode curren t
1.5
T
=-40°C
AMB
1.0
T
=+25°C
AMB
T
=+85°C
AMB
Cathode voltage (V)
K
0.5
V
T
AMB
=+125°C
Output
-10
-1.0 -0.5 0.0 0.5 1.0 1.5
VK Cathode voltage (V)
Reference input current vs temperature
100
80
60
40
Reference current (nA)
REF
I
20
0
-40 0 40 80 120
Temperature (°C)
IK = 10 mA
= 10 KΩ
R
1
R2 = + ∞
0.0
0204060
IK Cathode current (µA)
Static impedance vs temperature
0.4
VK = V
0.3
0.2
Static impedance (Ohms)
KA
R
0.1
0.0
-40 0 40 80 120
Temperature (°C)
REF
IK = 100 µA to 12 mA
3/7
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