Absolute maximum ratings and operating conditions

TL431, TL432

4/22

DocID4467 Rev 17

2

Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings

Symbol

Parameter

Value

Unit

VKA

Cathode to anode voltage

37

V

Ik

Continuous cathode current range

-100 to +150

mA

Iref

Reference input current range

-0.05 to +10

mA

Rthjc

Thermal resistance junction to case

TO-92

SO-8 batwing

SOT23-3L

SOT23-5L

SOT323-6L

57

30

136

67

110

°C/W

Rthja

Thermal resistance junction to ambient

TO-92

SO-8 batwing

SOT23-3L

SOT23-5L

SOT323-6L

200

85

248

157

221

°C/W

Tstg

Storage temperature range

-65 to +150

°C

TJ

Junction temperature

150

°C

ESD

TL431IY, TL431AIY-T: HBM (human body model)(1)

TL431-TL432: HBM (human body model)

MM: machine model(2)

CDM: charged device model(3)

1. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a

1.5 k

Ω resistor between two pins of the device. This is done for all couples of connected pin combinations

while the other pins are floating.

2. 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.

3. Charged device model: all pins and the package are charged together to the specified voltage and then

discharged directly to the ground through only one pin. This is done for all pins.

3000

2000

200

1500

V

Table 2. Operating conditions

Symbol

Parameter

Value

Unit

VKA

Cathode to anode voltage

Vref to 36

V

Ik

Cathode current

1 to 100

mA

Toper

Operating free-air temperature range

TL431C/AC

TL431I/AI - TL432I/AI

TL431B

TL431IY/AIY

0 to +70

-40 to +105

-40 to +125

-40 to +125

°C