PEM1-S_V01 CUI

Document overview

  • PDF pages: 7

Technical content

Page 1

date date 07/07/2021 page 1 of 7 1 of 7 page

SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER

PDF page 1 diagram

FEATURES

  • 1 W isolated output
  • smaller package
  • single/dual unregulated output
  • 3,000 Vdc isolation
  • short circuit protection
  • extended temperature range (-40~105°C)
  • antistatic protection up to 8kV
  • high efficiency at light load
  • efficiency up to 81%
  • EN 62368-1

MODEL

input

output

output

output

ripple

efficiency

voltage

voltage

current

power

and noise2

typ range

min max

max

typ

typ

(Vdc)

(Vdc)

(Vdc)

(mA) (mA)

(W)

(mVp-p)

(%)

PEM1-S3-S3-S

3.3 2.97~3.63

3.3

30 303

1

60

73

PEM1-S3-S5-S

3.3 2.97~3.63

5

20 200

1

60

78

PEM1-S5-S3-S

5 4.5~5.5

3.3

30 303

1

60

73

PEM1-S5-S5-S1

5 4.5~5.5

5

20 200

1

60

80

PEM1-S5-S12-S1

5 4.5~5.5

12

9 83

1

60

80

PEM1-S5-S15-S1

5 4.5~5.5

15

7 67

1

60

81

PEM1-S5-S24-S1

5 4.5~5.5

24

5 42

1

60

81

PEM1-S5-D3-S

5 4.5~5.5

±3.3

±15 ±152

1

60

73

PEM1-S5-D5-S1

5 4.5~5.5

±5

±10 ±100

1

60

80

PEM1-S5-D12-S1

5 4.5~5.5

±12

±5 ±42

1

60

80

PEM1-S5-D15-S1

5 4.5~5.5

±15

±4 ±33

1

60

81

PEM1-S5-D24-S1

5 4.5~5.5

±24

±2 ±21

1

60

81

PEM1-S12-S3-S

12 10.8~13.2

3.3

30 303

1

60

75

PEM1-S12-S5-S1

12 10.8~13.2

5

20 200

1

60

80

PEM1-S12-S12-S1

12 10.8~13.2

12

9 83

1

60

80

PEM1-S12-S15-S1

12 10.8~13.2

15

7 67

1

60

81

PEM1-S12-D3-S

12 10.8~13.2

±3.3

±15 ±152

1

60

74

PEM1-S12-D5-S1

12 10.8~13.2

±5

±10 ±100

1

60

80

PEM1-S12-D12-S1

12 10.8~13.2

±12

±5 ±42

1

60

81

PEM1-S12-D15-S1

12 10.8~13.2

±15

±4 ±33

1

60

81

PEM1-S15-S5-S

15 13.5~16.5

5

20 200

1

60

80

PEM1-S15-S12-S

15 13.5~16.5

12

9 83

1

60

80

PEM1-S15-S15-S

15 13.5~16.5

15

7 67

1

60

81

PEM1-S15-D5-S

15 13.5~16.5

±5

±10 ±100

1

60

80

PEM1-S15-D15-S

15 13.5~16.5

±15

±4 ±33

1

60

81

PEM1-S24-S3-S

21.6~26.4

3.3

PEM1-S24-S5-S1

21.6~26.4

Notes: 1. UL approved 2. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 μF ceramic and 10 μF electrolytic capacitors on the output.

Page 2

date 07/07/2021 │ page 2 of 7

MODEL

input

output

output

output

ripple

efficiency

voltage

voltage

current

power

and noise2

(CONTINUED)

typ range

min max

max

typ

typ

(Vdc)

(Vdc)

(Vdc)

(mA) (mA)

(W)

(mVp-p)

(%)

PEM1-S24-S12-S1

24 21.6~26.4

12

9 83

1

60

81

PEM1-S24-S15-S1

24 21.6~26.4

15

7 67

1

60

81

PEM1-S24-S24-S1

24 21.6~26.4

24

5 42

1

60

81

PEM1-S24-D3-S

24 21.6~26.4

±3.3

±15 ±152

1

60

73

PEM1-S24-D5-S1

24 21.6~26.4

±5

±10 ±100

1

60

80

PEM1-S24-D12-S1

24 21.6~26.4

±12

±5 ±42

1

60

81

PEM1-S24-D15-S1

24 21.6~26.4

±15

±4 ±33

1

60

79

PEM1-S24-D24-S1

24 21.6~26.4

±24

±2 ±21

1

60

80

Notes: 1. UL approved 2. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 μF ceramic and 10 μF electrolytic capacitors on the output.

PART NUMBER KEY

PEM1 - SXX - XXX -S

Base Number

Input Voltage

INPUT

parameter

conditions/description 3.3 Vdc input models 5 Vdc input models

operating input voltage

12 Vdc input models 15 Vdc input models 24 Vdc input models for maximum of 1 second 3.3 Vdc input models 5 Vdc input models

surge voltage

12 Vdc input models 15 Vdc input models 24 Vdc input models

filter

capacitance filter

OUTPUT

parameter

conditions/description for Vin change of 1%

line regulation

3.3 Vdc output models all other models measure from 10% load to full load 3.3 Vdc input models 5 Vdc input models

load regulation

12 Vdc input models 15 Vdc input models 24 Vdc input models

voltage accuracy

see tolerance envelope curve

voltage balance

dual output, balanced loads

switching frequency

at full load, nominal input voltage

temperature coefficient

at full load

Output

Packaging Style

Output Voltage S = single

SIP

D = dual

min

typ

max

units

2.97

3.3

3.63

Vdc

4.5

5 5.5

Vdc

10.8

12 13.2

Vdc

13.5

15 16.5

Vdc

21.6

24 26.4

Vdc

-0.7

5 Vdc

-0.7

9 Vdc

-0.7

18

Vdc

-0.7

21

Vdc

-0.7

30

Vdc

min

typ

max

units

±1.5

%

±1.2

%

18

%

12

%

8

%

7

%

6

%

±0.5

±1

% kHz

±0.03

%/°C

Page 3

date 07/07/2021 │ page 3 of 7

PROTECTIONS

parameter

conditions/description

min

typ

max

units

short circuit protection1

1

s

Note: 1. The supply voltage must be discontinued at the end of the short circuit duration.

SAFETY AND COMPLIANCE

parameter

conditions/description

min

typ

max

units

input to output for 1 minute, 1 mA max. leakage

isolation voltage

3,000

Vdc

current

isolation resistance

input to output at 500 Vdc

1,000

MΩ

isolation capacitance

input to output, 100KHz, 0.1V

20

pF

certified to 62368-1: EN

safety approvals2

certified to 60950-1: UL CISPR22/EN55022, class B (external circuit required, see Figure 1)

conducted emissions

CISPR22/EN55022, class B (external circuit required, see Figure 1)

radiated emissions

IEC/EN61000-4-2, class B, contact ± 8kV for single outputs

ESD

IEC/EN61000-4-2, class B, contact ± 6kV for dual outputs

MTBF

as per MIL-HDBK-217F @ 25°C

3,500,000

hours

RoHS

2011/65/EU

Note: 2. See specific models noted on pages 1 & 2.

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

see derating curve

-40

105

°C

storage temperature

-55

125

°C

storage humidity

non-condensing

95

%

temperature rise

at Ta = 25°C

25

°C

SOLDERABILITY

parameter

conditions/description

min

typ

max

units

hand soldering

1.5 mm from case for 10 seconds

300

°C

wave soldering3

see wave soldering profile

260

°C

Notes: 3. Preheat conditions: At 120°C for over 1 minute.

PDF page 3 diagram
PDF page 3 diagram

Preheat Profile

Wave Soldering Profile

Page 4

date 07/07/2021 │ page 4 of 7

MECHANICAL

parameter

conditions/description

min

typ

max

units

19.50 x 6.00 x 9.30 (0.768 x 0.236 x 0.366 inch)

dimensions

mm

case material

epoxy resin (UL94-V0)

weight

2.4

g

MECHANICAL DRAWING

units: mm[inch] tolerance: ±0.25[±0.010] pin section tolerance: ±0.10[±0.004]

PDF page 4 diagram
PIN CONNECTIONS
PIN Single Output Dual Output
1 Vin Vin
2 GND GND
5 0V -Vo
6 No Pin 0V
7 +Vo +Vo
PDF page 4 diagram

Page 5

date 07/07/2021 │ page 5 of 7

DERATING CURVES

PDF page 5 diagram

EMC RECOMMENDED CIRCUIT

Figure 1

Table 1

PDF page 5 diagram
Recommended external circuit components
Vin (Vdc) C1 LDM
3.3 4.7μF/50V 6.8μH
5 4.7μF/50V 6.8μH
12 4.7μF/50V 6.8μH
15 4.7μF/50V 6.8μH
24 4.7μF/50V 6.8μH

Note: 1. See Table 3 for Cout values.

TEST CONFIGURATION

Figure 2

Table 2

PDF page 5 diagram
External components
Lin 4.7μH
Cin 220μF, ESR < 1.0Ω at 100 kHz

Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.

Page 6

date 07/07/2021 │ page 6 of 7

APPLICATION NOTES

  1. Output load requirement To ensure this module can operate efficiently and reliably, the minimum output load may not be less than 10% of the full load during operation. If the actual output power is low, connect a resistor at the output end in parallel to increase the load.
  1. Overload Protection Under normal operating conditions, the output circuit of this product has no protection against overload. The simplest method to add this is to add a circuit breaker to the circuit.
  1. Recommended circuit If you want to further decrease the input/output ripple, you can increase the capacitance accordingly or choose capacitors with low ESR (see Figure 3 & Table 3). However, the capacitance of the output filter capacitor must be appropriate. If the capacitance is too high, a startup problem might arise. For every channel of the output, to ensure safe and reliable operation, the maximum capacitance must be less than the maximum capacitive load (see Table 4).

Figure 3

Single output

Dual output

PDF page 6 diagram
PDF page 6 diagram

Table 3

Table 4

Vin (Vdc) Cin (µF) Single Vo (Vdc) Cout (µF) Dual Vo (Vdc) Cout (µF)
3. 3 4.7 3.3 10 ±3.3 4.7
5 4.7 5 10 ±5 4.7
1 2 2.2 12 2.2 ±12 1
15 2.2 15 1 ±15 0.47
24 1 24 1 ±24 0.47
Single Vout (Vdc) Max. Capacitive Load (μF) Dual Vout (Vdc) Max. Capacitive Load1 (μF)
3.3 220 3.3 100
5 220 5 100
12 220 12 100
15 220 15 100
24 220 24 100

Note: 1. For each output.

Note: It’s not recommended to connect any external capacitors in applications with less than 0.5 watt output.

  1. Operation under minimum load will not damage the converter; however, they may not meet all specifications listed. Note: 2. Max. capacitive load tested at input voltage range and full load. 3. It is recommended to use either ceramic capacitors or electrolytic capacitors on the input and the output. Using tantalum capacitors may increase the risk of failure. 4. All specifications measured at: Ta=25°C, humidity<75%, nominal input voltage and rated output load, unless otherwise specified.

Page 7

date 07/07/2021 │ page 7 of 7

REVISION HISTORY

rev. description date
1.0 initial release 03/19/2013
1.01 added model PEM1-S15-S12-S 07/29/2013
1.02 added new models 02/14/2014
1.03 added UL approval to some models 09/16/2014
1.04 added UL approval to some models 01/14/2015
1.05 updated tolerance envelope curves 02/10/2016
1.06 added wave soldering preheat conditions, updated emc recommendations 12/04/2017
1.07 safeties updated in features and safety line 01/18/2021
1.08 derating curves and circuit figures updated 07/07/2021

The revision history provided is for informational purposes only and is believed to be accurate.

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techsupport@cui.com

CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.

CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.

CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.