TL431, TL431A, TL431B
TL432, TL432A, TL432B
ADJUSTABLE PRECISION SHUNT REGULATORS
SLVS543H − AUGUST 2004 − REVISED JANUARY 2005
equivalent schematic
†
CATHODE
800
Ω
REF
150
Ω
3.28 kΩ
2.4 kΩ
7.2 kΩ
20 pF
4 kΩ
10 kΩ
800
Ω
20 pF
1 kΩ
800
Ω
ANODE
† All component values are nominal.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
‡
Cathode voltage, V
KA
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 V
Continuous cathode current range, I
KA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −100 mA to 150 mA
Reference input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50
µA
to 10 mA
Operating virtual junction temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −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
PDIP (P)
SC-70 (DCK)
SOIC (D)
SOP (PS)
SOT-89 (PK)
SOT-23-5 (DBV)
SOT-23-3 (DBZ)
TO-92 (LP)
TSSOP (PW)
BOARD
High K, JESD 51-7
High K, JESD 51-7
High K, JESD 51-7
High K, JESD 51-7
High K, JESD 51-7
High K, JESD 51-7
High K, JESD 51-7
High K, JESD 51-7
High K, JESD 51-7
θ
JC
57°C/W
259°C/W
39°C/W
46°C/W
9°C/W
131°C/W
76°C/W
55°C/W
65°C/W
θ
JA
85°C/W
87°C/W
97°C/W
95°C/W
52°C/W
206°C/W
206°C/W
140°C/W
149°C/W
NOTE 2: Maximum power dissipation is a function of TJ(max),
θ
JA, 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.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
9
TI [ TEXAS INSTRUMENTS ]
