EVALED7706 STMicroelectronics, EVALED7706 Datasheet - Page 32

• Manufacturer Part Number: EVALED7706
• Description: EVALUATION BOARD FOR LED7706
• Manufacturer: STMicroelectronics

Specifications of EVALED7706

• Current - Output / Channel: 30mA
• Outputs And Type: 6, Non-Isolated
• Voltage - Output: 36 V
• Features: Dimmable, Extra 5V Output
• Voltage - Input: 4.5 ~ 36 V
• Utilized Ic / Part: LED7706
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6445

Application information
32/46
Equation 32
where I
Equation 33
whereas D, working in DCM, is:
Equation 34
defining M as:
Equation 35
Figure 20. Inductor current in DCM operation
T
Equation 36
defining D
OFF
can be calculated as:
L, peak
I
L, peak
I
2
L
as:
is the inductor peak current (see
T
ON
D
=
T
I
T
, L
OFF
SW
peak
2
T
OFF
= 1/F
⋅
M
F
=
sw
=
T
=
SW
SW
F
⋅
V
V
Δ
L
R
sw
IN
V
OUT
V
⋅
0
⋅
IN
M
D
OUT
⋅
⋅
D
L
(
2
M
⎧
⎨
⎩
=
=
. 2
=
−
. 3
⎧
⎨
⎩
⎧
⎨
⎩
083
) 1
. 0
125
398
(
I
. 1
348
, L
914
=
peak
044
5 .
⎧
⎨
⎩
5 .
@
. 0
2
A
ns
@
. 0
A
−
Figure 20
ns
⋅
285
I
C
488
OUT
@
V
OUT
@
@
V
IN
@
IN
,
)
max
@
,
⋅
min
V
@
T
V
V
IN
OFF
V
IN
IN
) calculated as:
,
=
IN
max
=
,
,
V
min
max
14
,
V
min
9
IN
`
IN
6 .
,
max
=
4 .
=
,
min
=
V
=
14
V
9
14
9
6 .
=
=
4 .
6 .
4 .
V
14
9
V
V
V
6 .
4 .
V
V
t
LED7706
AM00608v1