TLE4242G Infineon Technologies, TLE4242G Datasheet - Page 4
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TLE4242G
Manufacturer Part Number
TLE4242G
Description
IC LED DRIVER LINEAR D2PAK
Manufacturer
Infineon Technologies
Type
Linear (Non-Switching)r
Datasheet
1.TLE4242G.pdf
(14 pages)
Specifications of TLE4242G
Package / Case
D²Pak, TO-263 (7 leads + tab)
Constant Current
Yes
Topology
Linear (LDO), PWM
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive, General Purpose
Voltage - Supply
4.5 V ~ 42 V
Voltage - Output
40V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 150°C
Current - Output / Channel
500mA
Internal Switch(s)
Yes
Number Of Segments
3
Operating Supply Voltage
4.5 V to 42 V
Maximum Operating Temperature
+ 150 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DEMOBOARDTLE4242GIN - BOARD DEMO FOR TLE4242G
Frequency
-
Efficiency
-
Lead Free Status / Rohs Status
Details
Other names
SP000014456
SP000299340
TLE4242GINTR
TLE4242GNT
TLE4242GT
TLE4242GT
TLE4242GXT
SP000299340
TLE4242GINTR
TLE4242GNT
TLE4242GT
TLE4242GT
TLE4242GXT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TLE4242GATMA3
Manufacturer:
INFINEON
Quantity:
12 000
Application Information
Figure 3
Figure 3
driven with an adequate supply current adjusted by the resistor
variations due to forward voltage spread of the LEDs are prevented. The luminosity
spread arising from the LED production process can be compensated via software by an
appropriate duty cycle applied to the PWM pin. Hence selection of the LEDs to forward
voltage as well as to luminosity classes can be spared. The minimum supply voltage
calculates as the sum of the LED forward voltages, the TLE 4242 G drop voltage (max.
0.7 V at a LED current of 300 mA) and the max. voltage drop at the shunt resistor
of max. 185 mV.
The status output of the LED driver (ST) detects an open load condition enabling to
supervise correct LED function. A LED failure is detected if the voltage drop at the shunt
resistor
a delay time adjustable via an optional capacitor connected to the pin D.
Data Sheet
V
BAT
R
shows a typical application with the TLE 4242 G LED driver. The 3 LEDs are
REF
falls below typ. 25 mV. In this case the status output pin ST is set low after
I
Application Circuit
RADJ
TLE 4269 G
GND
100
nF
D
RO
SI
Q
µF
10
4
10 k
I
Ω
GND
ST
TLE 4242 G
47 nF
µC
PWM
D
REF
R
Q
REF
0.47
0.25 W
Rev. 1.1, 2007-03-20
. Thus brightness
Ω
AEA03499.VSD
TLE 4242 G
R
REF
LED
Dragon
R
REF