IKSEMICON ILE4275D0

TECHNICAL DATA
5V/400mA Low Drop Voltage
ILE4275
ILE4275 is integrated circuits of voltage regulator
5V/400 mA with low-drop voltage. The IC of voltage regulator
5V/400 mA are purposed to supply DC voltage 5V with 2%
accuracy at a range of input voltages from 5,6 to 40 V , with
drop voltage 0,5V at load current 300 mA. The IC is used in
power supply units of electronic devices, including automotive
electronics. Maximum input voltage is 45 V. The IC is tolerant
to over voltage of both polarities (positive & negative), provide internal current limitation and output voltage thermal
shutdown. Reset function is available.
The IC realized in 5-pin plastic packages TO-263-5 and
TO-252-5
ILE4275D2
TO-263-5
ILE4275D0
TO-252-5
ORDERING INFORMATION
Device
Operating
Temperature
Range
ILE4275D2
ILE4275D2T
ILE4275DOT
Tj = -40 to 150 C
Package
Shipping
TO-263-5
Tube
TO-263-5
Tape & Reel
TO-252-5
Tape & Reel
Features









High accuracy of the output voltage 5 V  2%;
Low-drop voltage ;
Built-in overheating protection;
Reverse polarity proof;
Low consumption current;
Input voltage up to 45 V;
Suitable for use in automotive electronics;
Wide junction temperature range -40 … +150C;
Reset function.
1
January 2011, Ver.01
ILE4275
Table 1. Pins Description
Chip pad
number
01
Package pin
number
01
Symbol
02
02
RO
03
03
GND
04
04
D
Reset delay pin
05, 06
05
Q
Output
07 - 10
-
-
Not bonded (not used)
Function
I
Input
Reset output
Common pin (Ground)
Block Diagram
Saturation
control &
protection circuit
Temperature
sensor
VT1
01
05
I
A1
Adjustment
Reference
voltage
source
Q
R4
R1
A2
Reset
+
02
RO
generator
-
R2
04
D
R3
03
GND
A1 – control amplifier;
A2 – buffer;
R1 – R4 –resistors;
VT1 - transistor
Figure 1.
January 2011, Ver.01
ILE4275
Table 2. Absolute Maximum Ratings
Symbol
Parameter
Min.
Max.
ТJ
Junction temperature
Тstg
Storage temperature
VI
Input voltage
VD
Reset delay pin voltage
ID
Reset delay pin current
VR
Reset pin voltage
IRO
Reset pin current
VQ
Output voltage
_________
* Ambient temperature is indicated.
** Voltage is not applied to input I
-40*
-50
-42
-0.3**
-2
-0,3**
-5
-1,0**
150
150
45
7**
2
25**
5
16**
Unit
o
C
C
V
V
mA
V
mA
V
o
* 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.
Table 3. Recommended Operation Rate
Symbol
Parameter
Min.
Max.
ТJ
VI
Junction temperature
Input voltage
-40*
5,6
150
40
VQ
Output voltage
4,9
5,1
Unit
o
C
V
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 ILE4275 without heat sink Rth ja is equal 80 oC /W
for 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 customer.
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
ILE4275
Table 4. Electric Parameters
(VI = 13.5 V, VADJ > 2.0 V, -40°C < TJ < 150°C unless otherwise specified)
Symbol
Iq
IQmax
Vdr
VQ
VQ(V)
Parameter
Consumption current
Iq = II - IQ
Maximum output current
Drop voltage
Output voltage
Test Condition
Min.
Max.
Unit
IQ = -1 mA, TJ = 25 oC
IQ = -1 mA, TJ < 85 oC
IQ = -250 mA
IQ = -400 mA
IQ = -300 mA
Note 2
6 V  VI  28 V
-5 mA  IQ  -400 mA
6 V  VI  40 V
-5 mA  IQ  -200 mA
8 V  VI  32 V
IQ = -5 mA
-5 mA  IQ  -400 mA
450
-
0.2
0.22
10
22
0.5
mA
4.9
5.1
V
4.9
5.1
Supply (input) voltage regu-15
15
lation of output voltage
30
VQ(I) Load current regulation of
output voltage
Reset generator parameters
VRT
Reset generator switching
4.5
4.8
threshold voltage
IROH
Reset output leakage
VROH = 5 V
10
current
VROL
Reset output low level volt0.4
Rext  5 k,
age
VQ  1 V
VDL
RO output switching to low
0,2
0.7
threshold voltage
VDV
RO output switching to high
1,5
2.2
threshold voltage
Id
Charge current
VD = 1 V
3,0
9.0
td
Reset delay time
CD = 47 nF
10
22
tRR
Reset reaction time
CD = 47 nF
2
Notes
1. Measurement of electric parameters is processed with connected input capacities
CI1 = 100 F, CI2 = 100 nF and output capacity CQ = 22 F.
2. Drop voltage Vdr = VI - VQ is measured, when the output voltage VQ has dropped
100mV from the nominal value obtained at VI = 13.5 V.
__________
* Ambient temperature is indicated.
mA
V
mV
mV
V
A
V
V
V
A
ms
s
January 2011, Ver.01
ILE4275
Table 5. Typical Electric Parameters
(VI = 13.5 V, -40°C < TJ < 150°C unless otherwise specified)
Symbol
Parameter
Test Condition
Typical
Value
Unit
PSRR
Ripple rejection ratio
fr = 100 Hzц, IQ = -100 mA
Vr = 0,5** V (p - p)
60
dB
Temperature factor of output
0,5
mV/ oC
voltage
_______
* Ambient temperature is indicated.
** It is permitted to measure at Vr(р - p) = 3 V, but for that PSRR norm to be revised
dVQ/dT
Typical Application Diagram
Input
+
C1
1000F
Q
I
C2
100nF
04
Output
05
01
+
ILE4275
C3
22F
R1
5 k
02
D
RO
GND
03
Figure 2.
January 2011, Ver.01
ILE4275
Operation Timing Diagram
VI, V
(pin 01)
 tRR
VQ, V
(pin 05)
URT, В
DV
VD, V
(pin 04)
Id
=
Dt
CD
VDU, V
VDL, V
tRR
VR, V
(pin 02)
td
UROH, V
UROL, V
t, s
Power-onReset
Thermal
shutdown
Voltage dip at
input
Undervoltage
at input
Overload at
output
Figure 3.
January 2011, Ver.01
ILE4275
Package Dimension
TO-263-5
January 2011, Ver.01
ILE4275
TO-252-5
January 2011, Ver.01