ILD4001 Infineon Technologies, ILD4001 Datasheet - Page 8

• Manufacturer Part Number: ILD4001
• Manufacturer: Infineon Technologies
• Type: Buckr

Specifications of ILD4001

• Packages: SC74
• Vs (min): 4.5 V
• Vs (max): 42.0 V
• Iout (typ): 10.0 mA
• Iout (max): -

2
The ILD4001 is a hysteretic buck LED controller IC for driving high power LEDs in indoor and outdoor lighting
applications.
The LED controller is capable of driving an external MOSFET power transistor with the internal push-pull output
stage to achieve LED currents of 350 mA up to 3 A and more depending on the dimensioning of the MOSFET, the
thermal budget of the circuit board and the current sense resistor.
The ILD4001 is widely suitable for LED applications with supply voltages up to 42 V. A multifunctional enable pin
allows dimming of the LEDs with DC voltage or a PWM signal. Furthermore the enable pin can be used to switch
the LED controller on and off to minimize power consumption in standby.
The ILD4001 incorporates an integrated thermal shutdown function pulling low the V
junction temperature exceeds the threshold temperature. Once the junction temperature drops below the
threshold temperature the V
To provide maximum design flexibility, the ILD4001 is housed in a small SC-74 package.
Figure 1
Data Sheet
PWM
GND
EN/
V
S
1
2
3
Product Brief
Block Diagram
Vref
drive
output is activated again.
Vstab
Buck LED Controller
ILD4001
Step down LED Controller for high power LEDs
8
Vstab
Vstab
TSD
I / V
drive
Revision 2.0, 2011-06-09
output signal once the
6
5
4
Product Brief
V
GND
V
sense
drive
ILD4001