ILD 4035 E6327 Infineon Technologies, ILD 4035 E6327 Datasheet - Page 11

• Manufacturer Part Number: ILD 4035 E6327
• Description: LED Drivers LED DRIVER
• Manufacturer: Infineon Technologies

Specifications of ILD 4035 E6327

• Low Level Output Current: 350 mA
• High Level Output Current: 500 mA
• Operating Supply Voltage: 4.5 V to 42 V
• Maximum Power Dissipation: 1000 mW
• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Package / Case: SC-74-6
• Minimum Operating Temperature: - 65 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ILD4035E6327XT

The safe area of operation consists of the minimum and maximum allowed average LED current and the resulting
voltage overhead.
The voltage overhead is the difference between the sum of the LED forward voltages and the supply voltage.
Example Calculation 1
3 LEDs in series;
V
=> every coil value could be used
Example Calculation 2
6 LEDs in series;
I
V
=> the coil values should be equal or above 100 uH
If
and the associated power dissipation of the ILD4035 will increase beyond maximum ratings.
LED
Data Sheet
overhead
overhead
V
overhead
= 250 mA;
=
=
V
V
is above the boundary of a certain coil value at wanted average LED current, the switching frequency
S
S
-
-
V
V
V
S
fLED
fLED
I
LED
= 24 V
= 12 V - 9 V = 3 V
= 24 V - 18 V = 6 V
= 350 mA;
V
S
= 12 V
11
Revision 1.0, 2010-11-11
350 mA LED Driver
Product Brief
ILD4035