Datasheet

CATHODE
ANODE
_
+
Absolute Maximum Ratings
(1)
Recommended Operating Conditions
LM4040
www.ti.com .................................................................................................................................................. SLOS456K – JANUARY 2005 – REVISED MARCH 2008
FUNCTIONAL BLOCK DIAGRAM
over free-air temperature range (unless otherwise noted)
MIN MAX UNIT
I
Z
Continuous cathode current – 10 25 mA
DBZ package 206
θ
JA
Package thermal impedance
(2) (3)
DCK package 252 ° C/W
LP package 156
T
J
Operating virtual junction temperature 150 ° C
T
stg
Storage temperature range – 65 150 ° C
(1) 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.
(2) 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.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
MIN MAX UNIT
I
Z
Cathode current
(1)
15 mA
LM4040xxxI – 40 85
T
A
Free-air temperature ° C
LM4040xxxQ – 40 125
(1) See parametric tables
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