Datasheet TL431, TL431A, TL432, TL432A (Texas Instruments) - 4

SLVS005V − JULY 1978 − REVISED NOVEMBER 2003
equivalent schematic† CATHODE 800
Ω
800
Ω
20 pF REF 150
Ω
3.28 k
Ω
4 k
Ω
10 k
Ω
2.4 k
Ω
7.2 k
Ω
20 pF 1 k
Ω
800
Ω
ANODE
† All component values are nominal.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡
Cathode voltage, VKA (see Note 1) . 37 V Continuous cathode current range, IKA . −100 mA to 150 mA Reference input current range . −50 µA to 10 mA Operating virtual junction temperature, TJ 150 . °C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . 260°C Storage temperature range, Tstg −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
θ
JC
θ
JA
PDIP (P) High K, JESD 51-7 57°C/W 85°C/W POWER-FLEX (KTP) High K, JESD 51-5 19°C/W 28°C/W SOIC (D) High K, JESD 51-7 39°C/W 97°C/W SOT-89 (PK) High K, JESD 51-7 9°C/W 52°C/W SOT-23 (DBV) High K, JESD 51-7 131°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. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265