TL431, TL431A, TL431B

TL432, TL432A, TL432B

ADJUSTABLE PRECISION SHUNT REGULATORS

SLVS543H − AUGUST 2004 − REVISED JANUARY 2005

9

POST OFFICE BOX 655303

ANODE

REF

CATHODE

2.4 k

Ω

7.2 k

Ω

3.28 k

Ω

20 pF

4 k

Ω

1 k

Ω

800

Ω

800

Ω

800

Ω

20 pF

150

Ω

10 k

Ω

† All component values are nominal.

37 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−100 mA to 150 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference input current range

−50

µA to 10 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: Voltage values are with respect to the ANODE terminal, unless otherwise noted.

package thermal data (see Note 2)

PACKAGE

BOARD

θJC

θJA

PDIP (P)

High K, JESD 51-7

57

°C/W

85

°C/W

SC-70 (DCK)

High K, JESD 51-7

259

°C/W

87

°C/W

SOIC (D)

High K, JESD 51-7

39

°C/W

97

°C/W

SOP (PS)

High K, JESD 51-7

46

°C/W

95

°C/W

SOT-89 (PK)

High K, JESD 51-7

9

°C/W

52

°C/W

SOT-23-5 (DBV)

High K, JESD 51-7

131

°C/W

206

°C/W

SOT-23-3 (DBZ)

High K, JESD 51-7

76

°C/W

206

°C/W

TO-92 (LP)

High K, JESD 51-7

55

°C/W

140

°C/W

TSSOP (PW)

High K, JESD 51-7

65

°C/W

149

°C/W

NOTE 2: Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient

temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.