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ILE4276 Datasheet, PDF (3/6 Pages) IK Semicon Co., Ltd – Low consumption current
ILE4276
Table 2. Absolute Maximum Ratings
Symbol
Parameters
Min.
Max.
Unit
ТJ
Junction temperature
Тstg
Storage temperature
VI
Input voltage I
LE4276-5.0, ILE4276-8.5, ILE4276-10
-40*
150
oC
-50
150
oC
-42
45
V
ILE4276-AD (at UQ < 4 V)
VINH
Inhibit input voltage
IGND
Ground pin current
VQ
Output voltage
ILE4276-5.0, ILE4276-8.5,
-42**
45**
V
-
100
mA
V
-1,0**
40**
ILE4276-10, ILE4276-AD
VVA
Adjustment input voltage
ILE4276-AD
-0,3**
10**
V
_________
* Ambient temperature is indicated.
** Voltage is not applied to input I
* 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 in-
dicated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Table 3. Recommended Operation Rate
Symbol
ТJ
VI
VQ
VVA
Parameter
Junction temperature
Input voltage
ILE4276-5.0
ILE4276-8.5
ILE4276-10
ILE4276-AD (при UQ < 4 V)
Output voltage
ILE4276-5.0
ILE4276-8.5
ILE4276-10
ILE4276-AD
Adjustment input voltage
ILE4276-AD
Min.
Max.
Unit
-40*
150
oC
V
5.7
40
9.34
40
10.9
40
4.5
40
V
4.8
5.2
8.16
8.84
9.6
10.4
2.4
20
2.4**
2.6**
V
Note:
Maximum power Ptot,W, dissipated by IC at ambient temperature TA , is calculated by formula:
Ptot = (150 - TA) / Rth j-a ,
(1)
150 – maximum permissible operating junction temperature, OC.
Rth j-a - thermal resistance junction ambient (for IC without heat sink), oC /W,
for ILE4276-AD, ILE4276-5.0, ILE4276-8.5, ILE4276-10 without heat sink Rth ja is equal 80 oC /W
for ILE4276-AD, ILE4276-5.0, ILE4276-8.5, ILE4276-10 ILE4275 without heat sink Rth ja is equal 65 oC /W
for IC with heat sink Rth ja is calculated by formula
Rth j-a = Rth j-c + Rth c-a ,
(2)
Rth j-c - thermal resistance junction case, oC /W. Rth jc = 4 oC/W.
Thermal resistance case-ambient Rth c-a is determined by heat sink design and is selected by IC custom-
er.
Application circuit and heat sink and ambient temperature have to provide junction temperature not more
TJ  150 OC.
_________
* Ambient temperature is indicated.
January 2011, Ver.01