ILD 4035 E6327 Infineon Technologies, ILD 4035 E6327 Datasheet - Page 8

• 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

3
The ILD4035 is a hysteretic Step down LED converter IC for general lighting applications, which is capable to drive
high power LEDs with currents up to 350 mA.
The IC incorporates a wide input voltage range and an internal power switch. The output current level can be
adjusted with an external sense resistor.
According to the multifunctional control pin the IC can be switched on and off by an external signal, which is also
suitable to regulate brightness of the LEDs by PWM or analog voltage dimming.
Depending on the value of the switching inductor the switching frequency and the voltage ripple can be set.
The precise internal bandgap stabilizes the circuit and provides stable current conditions over temperature range.
To ensure a long lifetime of the LED system, the ILD4035 incorporates an overvoltage and an overcurrent
protection.
In addition, the integrated thermal shutdown will protect the LEDs and the IC against thermal stress.
Figure 1
Data Sheet
GND
PWM
EN/
Vs
1
2
3
Product Brief
Block Diagram
Vref
Over Voltage Protection
Vstab
Vstab
Buck LED Converter
ILD4035
8
Over Current Protection
Vstab
Vstab
TSD
I / V
Vstab
Revision 1.0, 2010-11-11
350 mA LED Driver
ILD4035_ Block diagram.vsd
Pflaum
Product Brief
6
5
4
ILD4035
Isense
GND
Vswitch