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CUI Inc

│ SERIES: P78-2000R-S │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR

date 08/08/2022

│ page 2 of 6

INPUT

parameter

conditions/description

min

typ

max

units

no load input current

(positive output)

at nominal input

1

mA

reverse polarity at input

avoid / not protected

input filter

capacitance filter

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

Vin = min ~ max, at full load

±0.4

±0.8

%

load regulation

at nominal input, 10% ~ 100% load

±0.5

±1.5

%

voltage accuracy

at nominal input, 10% ~ 100% load

±3.0

%

switching frequency

at nominal input, full load

400

kHz

temperature coefficient

-40°C ~ 80°C

±0.03

%/°C

transient response deviation

at nominal input, 25% load step change

(25%~50%~25%, 50%~75%~50% step)

±50

±150

mV

transient recovery time

at nominal input, 25% load step change

(25%~50%~25%, 50%~75%~50% step)

0.2

1

ms

PROTECTIONS

parameter

conditions/description

min

typ

max

units

short circuit protection

continuous, auto recovery

SAFETY AND COMPLIANCE

parameter

conditions/description

min

typ

max

units

safety approvals

designed to meet 62368: EN, IEC, UKCA

conducted emissions

CISPR32/EN55032 CLASS B (see Fig. 2-2 for recommended circuit)

radiated emissions

CISPR32/EN55032 CLASS B (see Fig. 2-2 for recommended circuit)

ESD

IEC/EN 61000-4-2 Contact ±6kV, perf. Criteria B

radiated immunity

IEC/EN 61000-4-3 10V/m, perf. Criteria A

EFT/burst

IEC/EN 61000-4-4 ±1kV, perf. Criteria B (see Fig. 2-1 for recommended circuit)

surge

IEC/EN 61000-4-5 line to line ±1kV, perf. Criteria B (see Fig. 2-1 for recommended circuit)

conducted immunity

IEC/EN 61000-4-6 3Vr.m.s, perf. Criteria A

MTBF

as per MIL-HDBK-217 at 25°C

2,000,000

hours

RoHS compliant

yes

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

see derating curves

-40

85

°C

storage temperature

-55

125

°C

storage humidity

non-condensing

5

95

%

pin soldering resistance

temperature

for max 10 seconds

260

°C

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