Datasheet

TL431−Q1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D − MARCH 2005 − REVISED MARCH 2013
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
equivalent schematic
{
ANODE
REF
CATHODE
2.4 kΩ
7.2 kΩ
3.28 kΩ
20 pF
4 kΩ
1 kΩ
800 Ω
800 Ω
800 Ω
20 pF
150 Ω
10 kΩ
†
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD protection level (see Note 2): HBM (H2) 2.5 kV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CDM (C4) 1 kV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MM (M2) 200 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
‡
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.
NOTE 2: ESD Protection Level per AEC Q100 Classification
package thermal data (see Note3)
PACKAGE BOARD θ
JC
θ
JA
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
NOTE 3: Maximum power dissipation is a function of T
J
(max), θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambient
temperature is P
D
= (T
J
(max) − T
A
)/θ
JA
. Operating at the absolute maximum T
J
of 150°C can affect reliability.
recommended operating conditions
MIN MAX
UNIT
V
KA
Cathode voltage V
ref
36 V
I
KA
Cathode current 1 100 mA
T
A
Operating free-air temperature range −40 125 °C