TL431_10 Datasheet, PDF (1/12 Pages) Texas Instruments – PRECISION PROGRAMMABLE REFERENCE

PROGRAMMABLE PRECISION SHUNT REGULATOR TL431/A/C
FEATURES
z Programmable Output Voltage to 40V
z Guaranteed 0.5% Reference Voltage Tolerance
z Low (0.2Ω Typ.) Dynamic Output Impedance
z Cathode Current Range(Continuous) – 100 ~ 150 mA
z Equivalent Full Range Temperature Coefficient of
50PPM/℃
z Temperature Compensated For Operation Over
Full Rate Operating Temperature Range
z Low Output Noise Voltage
z Fast Turn-on Response
z TO-92, SOT-89 or SOT-23 3L Package
APPLICATION
z Shunt Regulator
z Precision High-Current Series Regulator
z High-Current Shunt Regulator
z Crowbar Circuit
z PWM Converter With Reference
z Voltage Monitor
z Precision Current Limiter
TO-92 PKG
3
T
O
2
P
1
SOT-23 PKG
2
TOP
1
3
SOT-89 PKG
TOP
DESCRIPSION
The TL431 is a three-terminal adjustable shunt regulator
with specified thermal stability over applicable
temperature V_REF (Approx. 2.5V) and 40V with two
external resistors. This device has a typical dynamic
output impedance of 0.2Ω. Active output circuitry provides
a very sharp turn-on characteristic, making this device
excellent replacement for zener diodes in many
applications. The TL431 is characterized for operation
from -40℃ to +125℃.
123
PIN 1. Reference 2. Anode 3. Cathode
ORDERING INFORMATION
Device
Package
TL431
TO-92(Bulk)
TL431TA
TO-92(Taping)
TL431SF
SOT-23 3L
TL431F
SOT-89 3L
* Refer to the page 2 for detailed ordering Information,
Absolute Maximum Ratings
(Operating temperature range applies unless otherwise specified)
CHARACTERISTIC
SYMBOL
Cathode Voltage
Cathode Current Range(Continuous)
Reference Input Current Range
Junction Temperature Range
Operating Temperature Range
Storage Temperature Range
V_KA
I_K
I_REF
T_J
T_OPR
T_STG
Dec. 2010 – Rev.1.5
-1-
MIN.
-
-100
-0.05
-40
-40
-65
MAX.
42
150
10
150
125
150
UNIT
V
mA
mA
℃
℃
℃
HTC