Datasheet

www.recom-power.com
REV.: 1/2019 ECO-4
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up unless otherwise stated)
REC15E-Z
Series
REGULATIONS
Parameter Condition Value
Output Accuracy ±1.0% max.
Line Regulation low line to high line, full load
Single
Dual
±0.2% max.
±0.5% max.
Load Regulation
(5)
10% to 100% load
Single
Dual
0.5% max.
1.0% max.
Cross Regulation dual output only ±5.0% max.
continued on next page
Practical Example REC15-0505SZ trim up 10%
Practical Example REC15-0505SZ trim down 10%
Calculation:
R
up
=
k
u
x R
2
- R
3
R
2
- k
u
R
up
=
8k33 x 10k
- 35K7 = 14k2W
10k - 8k33
R
down
=
8k x 10k
- 35k7 = 4k3W
10k - 8k
R
down
=
k
d
x R
1
- R
3
R
1
- k
d
k
u
=
V
ref
x R
1
Vout
set
- V
ref
k
u
=
2.5
x 10k = 8k33
5.5 - 2.5
k
d
=
4.5 - 2.5
x 10k = 8k
2.5
k
d
=
Vout
set
- V
ref
x R
2
V
ref
Vout
nom
R
1
R
2
R
3
V
ref
3.3VDC 16k6W
10kW
52k3W 1.24VDC
5VDC 10kW 35k7W
2.5VDC
12VDC 38k1W 48k7W
15VDC 50k1W 51kW
24VDC 86k32W 73k2W
R
up
according to E96 ≈ 14k3W
R
down
according to E96 ≈ 4k32W
Vout
nom
= nominal output voltage [VDC]
Vout
set
= trimmed output voltage [VDC]
V
ref
= reference voltage [VDC]
R
up
= trim up resistor [W]
R
down
= trim down resistor [W]
R
1
, R
2
, R
3
= internal resistors [W]
k
u
= trim up factor [ ]
k
d
= trim down factor [ ]
Notes:
Note5: Operation below 10% load will not harm the converter, but specifications may not be met