Datasheet

ILD4001
Step down - LED controller IC for external power stages
Description
Target Datasheet 5 Rev. 1.0, 2009-07-06
Figure 1 Block diagram
Pin Definition
Table 1 Pin definition and function
Pin number Pin Symbol Function
1 V
s
Supply Voltage
2 GND IC ground
3 EN / PWM Multifunctional Pin; Power On control voltage pin (PWM input)
4 V
drive
Push- Pull Switch Output
5 GND IC ground
6 I
sense
LED current sense pin
ILD4001 _Block diagram .vs
d
6
5
4
3
2
1
Vs
G
ND
EN/
PWM
Isense
GND
Vdrive
ILD4001
Buck LED Controller
I / V
Vref
Vstab
Vstab
Vstab
Pflaum
Over Voltage Protection
TSD