DC/DC Converter

RPP-2

REV.: 2/2016

www.recom-power.com

RPP40-2412SW

Series

PROTECTIONS

Parameter

Condition

Value

Hiccup Mode

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

100M

W min.

Isolation Capacitance

I/P to O/P

1500pF typ.

Notes:

Note2:

combines Over Load Protection and Short Circuit Protection

Note3:

This Power Module is not internally fused. A input fuse must be always used. Recommended Fuse: T6.3A

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

±10% typ.

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.

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

CTRL

TRIM

LOAD

CTRL

TRIM

LOAD

Trim down resistor value (K

W)

Vout

-1%

-2%

-3%

-4%

-5%

-6%

-7%

-8%

-9% -10%

12VDC 270

120

70

45.2 30.1 19.8 12.8 7.52 3.31

0

Trim up resistor value (K

W)

Vout

1%

2%

3%

4%

5%

6%

7%

8%

9%

10%

12VDC 270

120

70

45.2 30.1 19.8 12.8 7.52 3.31

0