STMicroelectronics SOT23-3 Technical data

Block diagram TS3431

1 Block diagram

Figure 1. Block diagram

Cathode

Reference

+

-

VREF

Anode

2 Absolute maximum ratings

Table 1. Absolute maximum ratings (AMR)

Symbol Parameter Value Unit

V

I

T

ESD

T

1. Pd is calculated with T

Table 2. Operating conditions

Cathode to anode voltage 25 V

KA

Reverse b rea kd own current -100 to +150 mA

I

K

Reference current -0.05 to10 mA

REF

Power dissipation

P

d

Storage temperature -65 to +150 °C

stg

(1)

SOT23-3L

Human body model (HBM) 2 kV
Machine model (MM) 200 V
Lead temperature (soldering, 10 seconds) 250 °C

lead

= 25°C, Tj = 150°C, R

amb

= 110°C/W, R

thjc

= 340°C/W.

thja

360 mW

Symbol Parameter Value Unit

I

Cathode operating current 0.5 to 100 mA

K

Cathode operating voltage 1.24 to 24 V

V

K

T

Operating free air temperature range -40 to +125 °C

oper

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TS3431 Electrical characteristics

3 Electrical characteristics

Table 3. T

= 25°C (unless otherwise specified)

amb

(1)

Symbol Parameter Test conditions Min. Typ. Max. Unit

TS3431 (2%) 1.215

1.265

TS3431A (1%) 1.228 1.252

V

Reference input voltage IK = 10mA

K

TS3431B (0.5%) 1.234 1.246

1.24

TS3431C (0.25%) 1.237 1.243
0°C < T < +70°C 10

ΔV

Variation of reference input voltage

K

over temperature

-40°C < T < +125°C 21

T

Temperature coefficient -40°C < T < +125°C 100 ppm/°C

C

T = 25°C 0.35 0.4

I

Kmin

ΔVref

--------------- -

ΔVka

I

REF

Minimum operating current

Ratio of change in reference input
voltage to change in cathode to anode
voltage

Reference input current
IK=10mA, R1=10KΩ, R2=+

∞

-40°C < T < +125°C 0.5
=10mA

I

K

VK= 24 to 1.24V

1.2 1.5

-40°C < T < +125°C 2

T= 25°C 0.9 1.5

-40°C < T < +125°C 2

V

mV-40°C < T < +105°C 18

mA

mV/V

µA

ΔI

REF

Reference input current deviation
IK=10mA, R1=10KΩ, R2=+

0°C < T < +70°C 0.5 1

µA

-40°C < T < +125°C 0.9 1.5

T= 25°C 35 500

I

OFF

Off-state cathode current VK=24V

nA-40°C < T < +105°C 1000

-40°C < T < +125°C 2000

R

E

1. Limits are 100% production tested at 25°C. Behavior at the temperature range limits is guaranteed through correlation and
by design.

Reverse static impedance IK = 1 to 100mA 0.2 0.4 W

KA

I

= 10mA

Wideband noise

N

K

1kHz < f < 100kHz

100 nV/√ Hz

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