TL431 Datasheet, PDF (2/12 Pages) Motorola, Inc – PROGRAMMABLE PRECISION REFERENCES

PRODUCT DATABOOK 1996/1997
TL431/TL431A/TL431B
PRECISION PROGRAMMABLE REFERENCES
PRODUCTION DATA SHEET
A B S O L U T E M A X I M U M R AT I N G S (Note 1)
Cathode to Anode Voltage (V ) (Note 2) .................................................... -0.3V to 37V
KA
Reference Input Current (I_REF) ................................................................... -50µA to 10mA
Continuous Cathode Current (I ) ......................................................... -100mA to 150mA
K
Operating Junction Temperature
Plastic (DM, LP Packages) .................................................................................... 150°C
Storage Temperature Range ...................................................................... -65°C to 150°C
Lead Temperature ..................................................................................................... 300°C
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect
to Ground. Currents are positive into, negative out of the specified terminal. Pin
numbers refer to DIL packages only.
Note 2. Voltage values are with respect to the anode terminal unless otherwise noted.
THERMAL DATA
DM PACKAGE:
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θ_JA
LP PACKAGE:
165°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θ_JA
156°C/W
Junction Temperature Calculation: T_J = T_A + (P_D x θ_JA).
The θ numbers are guidelines for the thermal performance of the device/pc-board system.
JA
All of the above assume no ambient airflow
BLOCK DIAGRAM
Cathode (K)
PACKAGE PIN OUTS
CATHODE
N.C.
ANODE
N.C.
1
8
2
7
3
6
4
5
REF
ANODE
ANODE
N.C.
DM PACKAGE
(Top View)
1. CATHODE
2. ANODE
3. REF
LP PACKAGE
(Top View)
Ref (R)
V_REF
Anode (A)
2
Copyright © 1999
Rev. 1.3 9/99