Datasheet

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REV.: 0/2019 P-7
Reference Design
Specifi cations (measured @ Ta= 25°C, full load after warm up unless otherwise stated)
R-REF04-RIA12
Enable Schematic
Description
CON5 is used to enable or disable the device. Which control logic is used, depends on converter chosen:
Positive logic:
Converter is preset to be enabled (ON).
A voltage on CON5 disables the converter.
Negative logic:
Converter is preset to be disabled (OFF).
A voltage on CON5 enables the converter.
A positive voltage of between 5V and 15V enables (positive logic) or disables (negative logic) the converter. This is based on an output sink
current of 3mA on the CTRL Pin which is suitable for the most converters. If higher currents are required, an adjustment of R13 and R14
may be required.
Output Trim:
R1 and R2 are unpopulated pads to allow external output voltage trimming resistors to be added.
Refer to the converter datasheets for the appropriate resistor values.
Layout
Notes:
Note1: visit www.recom-power.com/eval-ref-boards to download the Gerber fi les
Top Layer Bottom Layer
FB1
V DD
1
1
SD
2
2
TIMER
3
3
V SS
4
BASE
5
FB
6
OUT
7
GATE
8
U1
D3
D1
1
2
C1
GND GND
R6
R7
2
1
HTSK1
Q1
R4
D2
R3
1
2
C2
GND
C14
GND
C8
GND
2 1
4 3
L1
2 1
4 3
L2
C9
1
2
C3
1
2
C4 C11
FB2
FB3
FB4
FB5
FB6
FB7
FB8
FB10
FB11
2 1
4 3
L 4
2 1
4 3
L5
GND
IN
-IN
-VIN
V IN
+VIN
1
CTRL
2
CASE
3
-VIN
4
-VOUT
5
-SENSE
6
TRIM
7
+SENSE
8
+VOUT
9
M1A
Mech Pin
10
Mech Pin
11
Mech Pin
12
Mech Pin
13
M1B
CTRL
+VIN
1
Gate In
2
Gate Out
3
-VIN
4
-VOU
5
-SENSE
6
T
T
T
RIM
7
+SENSE
8
+VOU
9
M2 A
Mech Pin
10
Mech Pin
11
Mech Pin
12
Mech Pin
13
Mech
Mech
Pin
14
Pin
15
M2B
V IN
-VIN
CTRL
+VIN
1
-VIN
2
CTRL
3
+VOUT
4
-VOUT
5
TRIM
6
M3
V IN
CTRL
-VIN
-VIN
3
CTRL
2
+VIN
1
-VOUT
4
-SENSE
5
TRIM
6
+SENSE
7
+VOUT
8
M4A
Mech Pin
9
Mech Pin
10
M4B
V IN
-VIN
CTRL
C15
R1 1
R1 2
GND
R8
R9
R10
GND
R1
R2
R5
C16
P1
C7 C10
C5 C6
-VOUT
-VOUT
-VOUT
+VOUT
+VOUT
+VOUT
+VOUT
CM
C
2
CMC2
C
M
C
1
CMC
3
R13
R14
1
4
2 3
L3
1
2
4
3
U2
CTRL
-VIN
1
2
CON6
+VOUT
-VOUT
ENABLE
COO LINGFA N
ALTERN ATE PARTS
MECHANICAL PINS
1
2
CON1
1
2
CON2
1
2
CON3
1 2
CON4
GND
1
2
CON5
1 2
FB9A
3 4
FB9B
1-2 3-4
FH1
TRIM
TRIM
TRIM
TRIM
1
2
CON7
-VOUT
CMC1
CMC3
IN
-IN
CASE
CA SE
F1
DIMENSION AND PHYSICAL CHARACTERISTICS
Parameter Type Value
Dimension (LxWxH) 185.0 x 120.0 x 45.0mm
Weight 295g typ.