INFINEON TLE4240-2M

Low Dropout Linear LED Driver
TLE 4240-2/3 M
Features
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Typ. 58 mA constant output current
Low dropout voltage
Tiny SMD package PG-SCT595-5
Open load detection (Version TLE 4240-3 M only)
45 V input voltage operation range
Safe operation area monitoring
Output protected against short circuit
to GND and supply
Reverse polarity protection
Wide temperature range: -40 °C ≤ Tj ≤ 150 °C
Overtemperature shutdown
Suitable for use in automotive electronics
PG-SCT-595
Functional Description
The TLE 4240-2/3 M is a monolithic integrated low dropout linear constant current
source. It is designed to supply white or color LEDs in order to achive constant
brightness and extended LED lifetime independent from supply voltage or LED forward
voltage class.
Protection circuits prevent from damage to the device in case of overload, short circuit,
reverse polarity and overheat. The LEDs connected are protected against reverse
polarity transients as well as against voltages up to 45 V. The Safe Operation Area
(SOA) monitoring function limits the output current in case of a very high drop voltage
across the regulator. For details see graph “Output Current versus Drop Voltage”.
Version TLE 4240-3 M is equipped with a status output indicating an open load failure
condition.
The TLE 4240-2/3 M is supplied in a space-saving PG-SCT595-5 package offering
minimal thermal resistance.
Type
Package
Remark
Marking
TLE 4240-2 M
PG-SCT595-5
–
42
TLE 4240-3 M
PG-SCT595-5
Open load detection
43
Datasheet
1
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
n.c.
ST
1
5
GND
2
I
3
4
1
GND
Q
Pinout.vsd
GND
2
I
3
5
GND
4
Q
P inout.vsd
TLE 4240-2 M
TLE 4240-3 M
Figure 1
Pin Configuration (top view)
Table 1
Pin Definitions and Functions
Pin No. Symbol Function
1
n.c.
Version TLE 4240-2 M only:
Internally not connected.
1
ST
Version TLE 4240-3 M only:
Status output; open collector output. Low level indicates open load.
Connect to a positive voltage rail with an external pull-up resistor.
Leave open, if not needed.
2
GND
Ground; connect to heatsink area. Interconnect with pin 5.
3
I
Input;
IC supply
4
Q
Output;
5
GND
Ground; connect to heatsink area. Interconnect with pin 2.
Datasheet
2
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
TLE 4240-2 M
Figure 2
TLE 4240-3 M
Block Diagram
VBAT
5V
TLE 4264
Voltage
Regulator
µC
4k7
I/O
Open Load
ST
Open Load Status Output
at Version TLE 4240-3 only
I
Q
TLE 4240-2
TLE 4240-3
GND
TLE4240-2_A pplication.vsd
Figure 3
Datasheet
Typical Application Circuit
3
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
Table 2
Absolute Maximum Ratings
-40 °C ≤ Tj ≤ 150 °C
Parameter
Symbol
Limit Values
Unit
Remarks
Min.
Max.
VI
II
-16
45
V
–
–
–
mA
internally limited
VQ
IQ
-1
40
V
–
–
–
mA
internally limited
VST
IST
-0.3
12
V
–
–
–
mA
internally limited
VESD,HBM
VESD,CDM
VESD,HBM
VESD,CDM
4
–
kV
TLE 4240-2 M; HBM 1)
2
–
kV
TLE 4240-2 M; CDM 2)
2
–
kV
TLE 4240-3 M; HBM 1)
2
–
kV
TLE 4240-3 M; CDM 2)
Tj
Tstg
-40
150
°C
–
-50
150
°C
–
Input I
Voltage
Current
Output Q
Voltage
Current
Status ST (TLE 4240-3 M)
Voltage
Current
ESD Susceptibility
ESD Resistivity
ESD Resistivity
Temperatures
Junction temperature
Storage temperature
1) ESD susceptibility “human body model (HBM)” according to JESD22-A114.
2) ESD susceptibility “charged device model (CDM)” according to JESD22-C101
Note: Stresses above the ones listed here may cause permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Integrated protection functions are designed to prevent IC destruction under fault
conditions described in the data sheet. Fault conditions are considered as
“outside” normal operating range. Protection functions are not designed for
continuous repetitive operation.
Datasheet
4
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
Table 3
Functional Range
Parameter
Symbol
Input voltage
Status output voltage
(Version TLE 4240-3 M only)
Junction temperature
Table 4
Limit Values
Unit
Remarks
Min.
Max.
VI
VST
3
45
V
–
–
15
V
–
Tj
-40
150
°C
–
Thermal Resistance
Parameter
Symbol Typ. Limit Unit
Values
Remarks
Junction ambient
Rth,j-a
Rth,j-pin5
Junction pin 5
179
K/W
A: footprint only1)
99
K/W
A = 300 mm 1)
87
K/W
A = 600 mm 1)
26
K/W
measured to pin 5
1) Mounted an a PCB 80 × 80 × 1.5 mm3, horizontal position, zero airflow.
Table 5
Electrical Characteristics
VI = 13.5 V; VQ = 6 V; -40 °C ≤ Tj ≤ 150 °C; unless otherwise specified
Parameter
Symbol
Limit Values
Unit Test Condition
Min.
Typ.
Max.
51
57
63
mA
46
58
70
mA
–
0.5
0.7
V
Regulator:
Output current
Dropout voltage
Vdr = VI - VQ
Datasheet
IQ
Vdr
5
Tj = 100 °C
9 V ≤ VI ≤ 16 V
Tj ≤ 125 °C
IQ = 40 mA
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
Table 5
Electrical Characteristics (cont’d)
VI = 13.5 V; VQ = 6 V; -40 °C ≤ Tj ≤ 150 °C; unless otherwise specified
Parameter
Symbol
Unit Test Condition
Min.
Typ.
Max.
-5
–
–
mA
-5
–
–
mA
Current consumption
Iq = II - IQ
Iq
–
7
10
mA
VI = -16 V
VQ = 0 V
VI = 0 V
VQ = 16 V
Vdr = 1 V
Current consumption
open load
Version TLE 4240-3 M
Iq
–
30
40
mA
IQ = 0 mA
0.8
V
Ramping down
(VI - VQ)
IST = 1 mA
IQ = 5 mA
VST = 1 V
Reverse output current
IQ
Limit Values
Open Load Detection (Version TLE 4240-3 M only):
Lower status
switching threshold
VIQ,L = VI - VQ
VIQ,L
–
–
Status Output ST (Version TLE 4240-3 M only):
Status low voltage
VST,low
–
–
0.4
V
Status sink current
limitation
IST,MAX
1.5
–
–
mA
Status leakage current
IST,high
–
–
2
µA
Datasheet
6
VST = 5 V
(VI - VQ) > 1 V
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
Typical Performance Characteristics
Current Consumption Iq vs.
Drop Voltage Vdr = (VI - VQ)
Current Consumption Iq vs.
Output Current IQ
Iq-IQ.vsd
Iq-V dr.vsd
I q [mA]
I q [mA]
T j = 25 °C
VQ = 4.5 V
8
16
VQ = 7 V
Tj = -40 °C
6
12
4
8
VQ = 11 V
2
T j = 25 °C
4
T j = 150 °C
VQ = 22 V
0
1
2
3
20
0
4
40
60
IQ [mA]
V dr [V]
Output Current IQ vs.
Input Voltage VI ;VQ = 6 V
Dropout Voltage Vdr vs.
Junction Temperature Tj
I Q [mA]
V dr,min
VQ = 6 V
Tj = 25 °C
VDR,MIN-TJ.VSD
0.7
IQ-VI.vsd
[V]
60
0.5
50
T j = 125 °C
40
0.4
30
0.3
20
0.2
0
10
20
30
0.1
-40 -20
40
IQ = 40 mA
0
20
40
60 80 100 120 140
T j [°C]
VI [V]
Datasheet
I Q = 50 mA
7
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
Typical Performance Characteristics
Output Current IQ vs.
Junction Temperature Tj
Output Current IQ vs.
Drop Voltage Vdr (SOA)
IQ-Tj.vsd
SOA .vsd
IQ
70
[mA]
VQ = 7 V
[mA]
VI = 13.5 V
VQ = 7 V
IQ
T j = 25 °C
60
60
50
55
40
50
30
45
-40 -20
0
20
40
60
80 100 120 140
8
0
16
32
24
T j [°C]
Vdr [V]
Reverse Current IQ versus
Reverse Input Voltage VI
Reverse Current II versus
Reverse Input Voltage VI
IQrev-V I.vsd
IQ
IIrev-V I.vsd
II
VQ = 0 V
[mA]
VQ = 0 V
[mA]
-0.5
-10
Tj = -40 °C
-1
-20
T j = 25 °C
Tj = 150 °C
-1.5
-30
-2
-40
-32
-24
-16
0
-8
-32
VI [V]
Datasheet
-24
-16
0
-8
VI [V]
8
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
Typical Performance Characteristics
Reverse Output Current IQ versus
Output Voltage VQ
Current Consumption Iq
in open load condition vs. Tj
Iq,NL-Tj.vsd
IQrev-VQ.vsd
IQ
Iq
VI = 0 V
[mA]
VI = 13.5 V
Q : open
[mA]
-1
32
-2
TLE 4240-3
(w/ status output ST)
24
T j = -40 °C
-3
16
T j = 150 °C
-4
8
TLE 4240-2
(no status output)
0
8
16
24
32
-40 -20
20
40
60
80 100 120 140
T j [°C]
VQ [V]
Datasheet
0
9
Rev. 1.1, 2006-12-07
TLE 4240-2/3 M
Package Outline
<GPW05997>
Footprint
Reflow Soldering
Figure 4
Footprint
Wave Soldering
PG-SCT595-5
Find all packages, sorts of packing and others at Infineon Internet Page “Packages”:
http://www.infineon.com/packages.
Dimensions in mm
SMD = Surface Mounted Device
Datasheet
10
Rev. 1.1, 2006-12-07
Edition 2006-12-07
Published by Infineon Technologies AG,
81726 München, Germany
© Infineon Technologies AG 2006.
All Rights Reserved.
Attention please!
The information given in this data sheet shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values stated
herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any
and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party.
Information
For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com).
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Due to technical requirements components may contain dangerous substances. For information on the types in
question please contact your nearest Infineon Technologies Office.
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of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
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