Datasheet

Only the single output converters have a trim function that allows users to adjust the output voltage from +10% to -10%, please refer to
the trim table that follow for details. Adjustment to the output voltage can be used with a simple fixed resistor as shown in Figures 1 and 2.
A single fixed resistor can increase or decrease the output voltage depending on its connection. Resistor should be located close to the converter.
If the trim function is not used, leave the trim pin open.
Trim adjustments higher than the specified range can have an adverse effect on the converter´s performance and are not recommended.
Excessive voltage differences between output voltage sense voltage, in conjunction with trim adjustment of the output voltage; can cause
the OVP circuitry to activate. Thermal derating is based on maximum output current and voltage at the converter´s output pins. Use of
the trim and sense function can cause output voltages to increase, thereby increasing output power beyond the converter´s specified rating.
Therefore: (Vout at Pins) X (Iout) ≤ rated output power.
DC/DC Converter
RPP-2
REV.: 3/2016 www.recom-power.com
RPP20-2405SW
Series
PROTECTIONS
Parameter Condition Value
Output Power Protection (OPP) current limit 120% typ.
Over Voltage Protection (OVP) 10% load 120% typ.
Over Temperature Protection (OTP) case temperature 120°C, auto-recovery
Isolation Voltage
I/P to O/P, at 70% RH
I/P to Case, O/P to Case
2250VDC / 1 Minute
1500VDC / 1 Minute
Isolation Resistance I/P to O/P , at 70% RH 100MW min.
Isolation Capacitance I/P to O/P 1500pF typ.
Specifications (measured @ ta= 25°C, nominal input voltage, full load and after warm-up)
Notes:
Note2: This Power Module is not internally fused. A input fuse must be always used. Recommended Fuse: T3.15A
REGULATIONS
Parameter
Condition
Value
Output Voltage Accuracy 50% load ±1.5% max.
Line Voltage Regulation low line to high line ±0.3% max.
Load Voltage Regulation 10% to 100% load ±0.5% max.
Transient Response 25% load step change, ΔIo/Δt=2.5A/us 800µs typ.
Transient Peak Deviation 25% load step change, ΔIo/Δt=2.5A/us ±2%Vout max.
Trimming Output Voltage
Figure 2. Trim connections to decrease output
voltage using fixed resistors
Figure 1. Trim connections to increase
output voltage using fixed resistors
+V
IN
-V
IN
CTRL
+V
OUT
R
TRIM
UP
-V
OUT
TRIM LOAD
+V
IN
-V
IN
CTRL
+V
OUT
R
TRIM
DOWN
-V
OUT
TRIM LOAD
Trim down resistor value (KW)
Vout
-1% -2% -3% -4% -5% -6% -7% -8% -9% -10%
5VDC
139.6 61.1 36 22.6 15.5 10.5 6.7 4.1 2.0 0.3
Trim up resistor value (KW)
Vout
1% 2% 3% 4% 5% 6% 7% 8% 9% 10%
5VDC
102.6 49.3 27.5 18.2 11.7 8.0 5.2 3.1 1.4 0