ILD4071 Datasheet, PDF (9/25 Pages) Infineon Technologies AG – LED Driver for High Power LEDs

ILD4071
General Product Characteristics
4.2
Functional Range
Pos. Parameter
Symbol
4.2.1 Supply Voltage Range
V_REC
4.2.2 Output current range
I_OUT
4.2.3 Switching Frequency
f_SW
4.2.4 Junction Temperature
T_j
1) Not subject to production test, specified by design.
Limit Values
Min.
Max.
5
40¹⁾
100
700
50
300¹⁾
-40
125
Unit Conditions
–
mA –
kHz T_j = 25°C to 150°C
°C –
Note: Within the functional range the IC operates as described in the circuit description. The electrical
characteristics are specified within the conditions given in the related electrical characteristics table.
4.3
Thermal Resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards.
For more information, go to www.jedec.org.
Pos. Parameter
Symbol
Limit Values
Unit Conditions
Min. Typ. Max.
4.3.1
4.3.2
Junction to Case
Junction to Ambient (2s2p)
R_thJ-case –
R_thJA
–
10
–
40
–
K/W ^{1) 2)}
K/W ^{1) 3)}
1) Not subject to production test, specified by design.
2) Specified R_thJ-case value is simulated at natural convection on a cold plate setup (all pins and the exposed Pad are fixed to
ambient temperature). Ta=25°C, Power Switch and freewheeling diode are dissipating 1W.
3) Specified RthJA value is according to Jedec JESD51-2,-7 at natural convection on FR4 2s2p board; The Product
(Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu).
According to JESD51-5 a thermal via array under the exposed pad contacted the first inner copper layer. Ta=25°C, Power
Switch and freewheeling diode are dissipating 1W.
Datasheet
9
Rev. 1.0, 2011-11-16