PUBLIC
PRODUCT
TABLE
OF CONTENTS
SPECIFICATION
Prepared (Subject resp)
No.
jidgezou George Zou
Approved (Document resp)
1/1301-BMR808
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
Isolated 2W Unregulated Dual Output
Date
3/17/2023
1 (1)
(5)
Technical Specification
Rev
28701-BMR808
E
B
Z Rev. B
March 2023
© Flex
Key Features
• Industry standard SIP-7 package
19.5 x 9.8 x 12.5 mm (0.77 x 0.385 x 0.49 in)
• High efficiency, typ. 81% at +15/-9 Vout full load
• 6200 Vdc input to output isolation
• Reinforced insulation - 250Vac rated working voltage
• Ultra low isolation capacitance, typically < 6 pF
• Meets safety requirements according to
IEC/EN/UL62368-1
• Wide operating temperature from -40°C to 100°C
• No minimum load required
• Continuous output short-circuit protection
• MTBF 13 Mhrs
General Characteristics
•
•
•
•
•
2 Watt output power
Safety Compliance to EN 62368-1
ISO 9001/14001 certified supplier
12 V, 15 V & 24 V inputs
+15 V / -3 V; +15 V / -5 V; +18 V / -2.5 V; +18 V / -5 V;
+20 V / -3.5 V; +20 V / -5 V; +15 V / -9 V; +17 V / -9 V;
+18 V / -9 V & ±15 V outputs
Safety Approvals
Design for Environment
Meets requirements in hightemperature lead-free soldering
processes.
Contents
Ordering Information
General Information
Safety Specification
Absolute Maximum Ratings
............................................................. 2
............................................................. 2
............................................................. 3
............................................................. 5
Electrical Specification
12-24 VI / 2.5-20 VO, 0.05-0.11 A / 2 W
PUC-2BG Series .................................. 6
EMC Specification
Operating Information
Thermal Consideration
Connections
Mechanical Information
Soldering Information
Delivery Information
Product Qualification Specification
........................................................... 12
........................................................... 13
........................................................... 14
........................................................... 14
........................................................... 15
........................................................... 16
........................................................... 16
........................................................... 17
Prepared (Subject resp)
1/1301-BMR808
Approved (Document resp)
Checked
Date
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
3/17/2023
Isolated 2W Unregulated Dual Output
Nominal
Input
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
12 V
15 V
15 V
15 V
15 V
15 V
15 V
15 V
15 V
15 V
15 V
24 V
24 V
24 V
24 V
24 V
24 V
24 V
24 V
24 V
24 V
Technical Specification
Rev
March 2023
28701-BMR808
E
Z Rev. B
© Flex
General Information
Ordering Information
PUC1215030D2BG
PUC1215050D2BG
PUC1218025D2BG
PUC1218050D2BG
PUC1220035D2BG
PUC1220050D2BG
PUC1215090D2BG
PUC1217090D2BG
PUC1218090D2BG
PUC1215150D2BG
PUC1515030D2BG
PUC1515050D2BG
PUC1518025D2BG
PUC1518050D2BG
PUC1520035D2BG
PUC1520050D2BG
PUC1515090D2BG
PUC1517090D2BG
PUC1518090D2BG
PUC1515150D2BG
PUC2415030D2BG
PUC2415050D2BG
PUC2418025D2BG
PUC2418050D2BG
PUC2420035D2BG
PUC2420050D2BG
PUC2415090D2BG
PUC2417090D2BG
PUC2418090D2BG
PUC2415150D2BG
2 (5)
No.
jidgezou George Zou
Product
2
PUBLIC
PRODUCT SPECIFICATION
Reliability
Output
+15 V/+110 mA, -3 V/-100 mA
+15 V/+100 mA, -5 V/-100 mA
+18 V/+80 mA, -2.5 V/-80 mA
+18 V/+90 mA, -5 V/-90 mA
+20 V/+90 mA, -3.5 V/-80 mA
+20 V/+80 mA, -5 V/-80 mA
+15 V/+100 mA, -9 V/-60 mA
+17 V/+90 mA, -9 V/-50 mA
+18 V/+90 mA, -9 V/-50 mA
±15 V/±67 mA
+15 V/+110 mA, -3 V/-100 mA
+15 V/+100 mA, -5 V/-100 mA
+18 V/+80 mA, -2.5 V/-80 mA
+18 V/+90 mA, -5 V/-90 mA
+20 V/+90 mA, -3.5 V/-80 mA
+20 V/+80 mA, -5 V/-80 mA
+15 V/+100 mA, -9 V/-60 mA
+17 V/+90 mA, -9 V/-50 mA
+18 V/+90 mA, -9 V/-50 mA
±15 V/±67 mA
+15 V/+110 mA, -3 V/-100 mA
+15 V/+100 mA, -5 V/-100 mA
+18 V/+80 mA, -2.5 V/-80 mA
+18 V/+90 mA, -5 V/-90 mA
+20 V/+90 mA, -3.5 V/-80 mA
+20 V/+80 mA, -5 V/-80 mA
+15 V/+100 mA, -9 V/-60 mA
+17 V/+90 mA, -9 V/-50 mA
+18 V/+90 mA, -9 V/-50 mA
±15 V/±67 mA
Product number and Packaging
PUCX1X2X3X4X5X6X7n1n2n3n4*
Options
n1
n2
Single/Dual output
ο
Output Power
n3
n4
ο
ο
Form factor
Custom suffix
ο
The failure rate (λ) and mean time between failures
(MTBF= 1/λ) is calculated at max output power and an
operating ambient temperature (TA) of +25°C. Flex uses
MIL-HDBK-217F, Notice 2 to calculate the mean steadystate failure rate.
In MIL-HDBK-217F, all part reliability models include the
effects of environmental stresses through the environmental
factor, πE. It encompasses the major areas of equipment
use, here we use ground benign, GB.
Mean steady-state failure rate, λ
MTBF
76.9 nFailures/h
13 Mhrs
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2011/65/EU and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Flex products
are found in the Statement of Compliance document.
Flex fulfills and will continuously fulfill all its obligations
under regulation (EC) No 1907/2006 concerning the
registration, evaluation, authorization and restriction of
chemicals (REACH) as they enter into force and is through
product materials declarations preparing for the obligations
to communicate information on substances in the products.
Quality Statement
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, Six Sigma, and SPC are intensively in use to
boost the continuous improvements strategy. Infant
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of the products.
Options
Description
Warranty
n1
n2
n3
n4
D
2
B
G
Warranty period and conditions are defined in Flex General
Terms and Conditions of Sale.
Dual Output
2W
SIP7
Gate Driver
Example a 24 Vdc nominal input, Dual +15/-5 Vdc output, 2 W
SIP7 product would be PUC2415050D2BG.
* X1X2 = Nominal input voltage
X3X4 = Positive output voltage
X5X6X7 = Negative output voltage
Limitation of Liability
Flex does not make any other warranties, expressed or
implied including any warranty of merchantability or fitness
for a particular purpose (including, but not limited to, use in
life support applications, where malfunctions of product can
cause injury to a person’s health or life).
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
No.
jidgezou George Zou
Approved (Document resp)
1/1301-BMR808
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
Isolated 2W Unregulated Dual Output
© Flex 2023
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liability is accepted for
inaccuracies, printing errors or for any consequences
thereof. Flex reserves the right to change the
contents of this technical specification at any time without
prior notice.
Date
3/17/2023
Rev
3 (5)
Technical Specification
28701-BMR808
E
Z Rev. B
© Flex
3
March 2023
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
No.
jidgezou George Zou
Approved (Document resp)
1/1301-BMR808
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
Isolated 2W Unregulated Dual Output
Safety Specification
General information
Flex Power DC/DC converters and DC/DC regulators are
designed in accordance with the safety standards
IEC 62368-1, EN 62368-1 and UL 62368-1 Audio/video,
information and communication technology equipment Part 1: Safety requirements
IEC/EN/UL 62368-1 contains requirements to prevent injury
or damage due to the following hazards:
•
•
•
•
•
•
Electrical shock
Electrically-caused fire
Injury caused by hazardous substances
Mechanically-caused injury
Skin burn
Radiation-caused injury
On-board DC/DC converters, Power interface modules and
DC/DC regulators are defined as component power
supplies. As components they cannot fully comply with the
provisions of any safety requirements without “conditions of
acceptability”. Clearance between conductors and between
conductive parts of the component power supply and
conductors on the board in the final product must meet the
applicable safety requirements. Certain conditions of
acceptability apply for component power supplies with
limited stand-off (see Mechanical Information for further
information). It is the responsibility of the installer to ensure
that the final product housing these components complies
with the requirements of all applicable safety standards and
regulations for the final product.
Component power supplies for general use shall comply
with the requirements in IEC/EN/UL 62368-1. Product
related standards, e.g. IEEE 802.3af Power over Ethernet,
and ETS-300132-2 Power interface at the input to telecom
equipment, operated by direct current (dc) are based on
IEC/EN/UL 62368-1 with regards to safety.
Flex Power DC/DC converters, Power interface modules
and DC/DC regulators are UL 62368-1 recognized and
certified in accordance with EN 62368-1. The flammability
rating for all construction parts of the products meet
requirements for V-0 class material according to
IEC 60695-11-10, Fire hazard testing, test flames – 50 W
horizontal and vertical flame test methods.
Isolated DC/DC converters & Power interface modules
The product may provide basic or functional insulation
between input and output according to IEC/EN/UL 62368-1
(see Safety Certificate), different conditions shall be met if
the output of a basic or a functional insulated product shall
be considered as ES1 energy source.
For basic insulated products (see Safety Certificate) the
output is considered as ES1 energy source if one of the
Date
3/17/2023
Rev
4
4 (5)
Technical Specification
28701-BMR808
E
Z Rev. B
March 2023
© Flex
following conditions is met:
• The input source provides supplementary or double or
reinforced insulation from the AC mains according to
IEC/EN/UL 62368-1.
• The input source provides functional or basic insulation
from the AC mains and the product’s output is reliably
connected to protective earth according to
IEC/EN/UL 62368-1.
For functional insulated products (see Safety Certificate)
the output is considered as ES1 energy source if one of the
following conditions is met:
• The input source provides double or reinforced
insulation from the AC mains according to
IEC/EN/UL 62368-1.
• The input source provides basic or supplementary
insulation from the AC mains and the product’s output is
reliably connected to protective earth according to
IEC/EN/UL 62368-1.
• The input source is reliably connected to protective
earth and provides basic or supplementary insulation
according to IEC/EN/UL 62368-1 and the maximum
input source voltage is 60 Vdc.
Galvanic isolation between input and output is verified in an
electric strength test and the isolation voltage (Viso) meets
the voltage strength requirement for basic insulation
according to IEC/EN/UL 62368-1.
It is recommended to use a slow blow fuse at the input of
each DC/DC converter. If an input filter is used in the circuit
the fuse should be placed in front of the input filter. In the
rare event of a component problem that imposes a short
circuit on the input source, this fuse will provide the
following functions:
• Isolate the fault from the input power source so as not
to affect the operation of other parts of the system
• Protect the distribution wiring from excessive current
and power loss thus preventing hazardous overheating
Non - isolated DC/DC regulators
The DC/DC regulator output is ES1 energy source if the
input source meets the requirements for ES1 according to
IEC/EN/UL 62368-1.
Prepared (Subject resp)
1 (8)
No.
jidgezou George Zou
Approved (Document resp)
5
PUBLIC
PRODUCT SPECIFICATION
2/1301-BMR808
Checked
PUC-2BG
seriesZou
DC/DC Converters
jidgezou George
Isolated 2W Unregulated Dual Output
Date
3/17/2023
Technical Specification
Rev
March 2023
28701-BMR808
Rev. B
C
© Flex
Absolute Maximum Ratings
Characteristics
min
TP1
Operating Temperature (see Thermal Consideration section)
-40
TCASE
Max. case temperature
TS
Storage temperature
-55
VI
Input voltage Range (base on nominal input voltage)
-10
Viso
Isolation voltage (input to output test voltage in 1minute)
typ
max
Unit
+100
°C
+115
°C
+125
°C
+10
%
6200
Vdc
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the Electrical Specification section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Fundamental Circuit Diagram
6
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
2 (8)
No.
jidgezou George Zou
Technical Specification
2/1301-BMR808
Approved (Document resp)
Checked
Date
PUC-2BG
seriesZou
DC/DC Converters
jidgezou George
Isolated 2W Unregulated Dual Output
Rev
March 2023
28701-BMR808
Rev. B
C
3/17/2023
© Flex
Electrical Specification
PUC-2BG series
Typical values given at: TP1 = +25°C, unless otherwise specified under Conditions.
Part Number
Input Voltage
(±10%)
Output
Voltage
Output
Current
Efficiency (typ.)
50% of max IO
Efficiency (typ.)
max IO
PUC1215030D2BG
PUC1215050D2BG
PUC1218025D2BG
PUC1218050D2BG
PUC1220035D2BG
PUC1220050D2BG
PUC1215090D2BG
PUC1217090D2BG
PUC1218090D2BG
PUC1215150D2BG
PUC1515030D2BG
PUC1515050D2BG
PUC1518025D2BG
PUC1518050D2BG
PUC1520035D2BG
PUC1520050D2BG
PUC1515090D2BG
PUC1517090D2BG
PUC1518090D2BG
PUC1515150D2BG
PUC2415030D2BG
PUC2415050D2BG
PUC2418025D2BG
PUC2418050D2BG
PUC2420035D2BG
PUC2420050D2BG
PUC2415090D2BG
PUC2417090D2BG
PUC2418090D2BG
PUC2415150D2BG
V
12
12
12
12
12
12
12
12
12
12
15
15
15
15
15
15
15
15
15
15
24
24
24
24
24
24
24
24
24
24
V
+15 / -3
+15 / -5
+18 / -2.5
+18 / -5
+20 / -3.5
+20 / -5
+15 / -9
+17 / -9
+18 / -9
+15 / -15
+15 / -3
+15 / -5
+18 / -2.5
+18 / -5
+20 / -3.5
+20 / -5
+15 / -9
+17 / -9
+18 / -9
+15 / -15
+15 / -3
+15 / -5
+18 / -2.5
+18 / -5
+20 / -3.5
+20 / -5
+15 / -9
+17 / -9
+18 / -9
+15 / -15
mA
+110 / -100
+100 / -100
+80 / -80
+90 / -90
+90 / -80
+80 / -80
+100 / -60
+90 / -50
+90 / -50
+67 / -67
+110 / -100
+100 / -100
+80 / -80
+90 / -90
+90 / -80
+80 / -80
+100 / -60
+90 / -50
+90 / -50
+67 / -67
+110 / -100
+100 / -100
+80 / -80
+90 / -90
+90 / -80
+80 / -80
+100 / -60
+90 / -50
+90 / -50
+67 / -67
%
64
70
66
66
69
69
69
66
67
66
64
66
64
69
67
69
67
67
65
68
68
72
68
68
69
69
70
68
68
68
%
79
78
77
78
79
80
81
78
79
80
77
79
77
81
78
80
79
81
78
77
80
78
77
79
78
80
79
80
78
78
Characteristics
CI
Internal input capacitance
PO
Output power
CLOAD
Capacitive Load, see Note 2
RISO
Isolation resistance
Conditions
min
typ
Isolation
capacitance
(typ.) (note 1)
pF
4.8
4.9
5.2
4.8
6.3
6.5
5.5
4.4
4.4
5.5
5.7
5.2
5.4
5.4
6.5
6.1
6.4
6.3
5.1
5.5
4.9
4.8
6.1
6.8
5.2
5.5
5.7
5.6
4.9
5.5
max
1
Unit
μF
2
100
10
W
μF
GΩ
PUCxx15xxxD2BG, PUCxx17xxxD2BG,
PUCxx18xxxD2BG.
-5
+5
%
PUCxx20xxxD2BG
-8
+2
%
Minimum load
TP1 = +25°C
0
Line regulation, see Note 3
VLL to VHL, max IO
1.2
%/%
Load regulation
ILL - IHL, at typ. Vin
5
%
fs
Switching frequency
100 % of max IO (at typ. Vin)
VOac
Output ripple & noise
20 MHz BW, see Note 4
Voltage accuracy at typ. Vin,
TP1 = +25°C, IO = max IO.
VOi
Note 1: The test condition of isolation capacitance is Freq: 1 kHz/Vs: 1 V
Note 2: The maximum capacitive load is tested by normal input and constant resistive load.
Note 3: The output voltage changes per input voltage changing.
Note 4: The Output ripple & noise is under nominal Vin and max IO with 0.1 μF and 10 μF /50 V MLCC.
%
20
30
130
kHz
50
mVp-p
Prepared (Subject resp)
2/1301-BMR808
Approved (Document resp)
Checked
Date
PUC-2BG
seriesZou
DC/DC Converters
jidgezou George
Isolated 2W Unregulated Dual Output
3/17/2023
Technical Specification
Rev
© Flex
PUC-2BG series
100%
100%
80%
80%
60%
1215030
1215090
1218025
1217090
1218050
0
1215050
1215150
1220050
1218090
1220035
10 20 30 40 50 60 70 60 80 100
Load (%)
PUC12-2BG
Efficiency vs. load current at TP1 = +25°C.
100%
Efficiency
80%
2415030
2415090
2418025
2417090
2418050
40%
20%
0%
0
2415050
2415150
2420050
2418090
2420035
10 20 30 40 50 60 70 80 90 100
Load (%)
PUC24-2BG
Efficiency vs. load current at TP1 = +25°C.
Operating Ambient Temperature Curve
Load (%)
100
80
60
40
20
0
Nat. Conv.
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110
Available load vs. ambient air temperature.
See Thermal Consideration section.
60%
1515030
1515090
1518025
1517090
1518050
40%
20%
0%
0
[°C]
1515050
1515150
1520050
1518090
1520035
10 20 30 40 50 60 70 80 90 100
Load (%)
PUC15-2BG
Efficiency vs. load current at TP1 = +25°C.
Efficiency
60%
Efficiency
Efficiency
Efficiency
Efficiency
0%
March 2023
28701-BMR808
Rev. B
C
Typical Characteristics
20%
3 (8)
No.
jidgezou George Zou
40%
7
PUBLIC
PRODUCT SPECIFICATION
8
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
4 (8)
No.
jidgezou George Zou
Technical Specification
2/1301-BMR808
Approved (Document resp)
Checked
Date
PUC-2BG
seriesZou
DC/DC Converters
jidgezou George
Isolated 2W Unregulated Dual Output
Rev
© Flex
Typical Characteristics
PUC-2BG series
Output Voltage Accuracy
Output Voltage Accuracy
30%
12Vin
13.5Vin
15Vin
20%
13.2Vin
Accuracy
Accuracy
30%
10.8Vin
20%
10%
0%
-10%
16.5Vin
10%
0%
-10%
-20%
0
10
20
30
40
50
60
Load (%)
70
80
90
100
-20%
0
PUC12-2BG
Output voltage accuracy vs. load current at TP1 = +25°C.
20
30
40
50
60
Load (%)
70
80
20%
21.6Vin
24Vin
20%
Regulation
10%
12Vin
13.2Vin
10%
0%
-10%
0
10
20
30
40
50
60
Load (%)
70
80
90
5%
0%
100
PUC24-2BG
Output voltage accuracy vs. load current at TP1 = +25°C.
0
10
20
30
40
50
60
Load (%)
70
80
90
100
PUC12-2BG
Output voltage with load variation vs. load current at TP1 = +25°C
Load Regulation
Load Regulation
13.5Vin
15Vin
15%
20%
21.6Vin
24Vin
15%
16.5Vin
10%
Regulation
20%
26.4Vin
10%
5%
0%
100
10.8Vin
15%
26.4Vin
-20%
90
Load Regulation
30%
Accuracy
10
PUC15-2BG
Output voltage accuracy vs. load current at TP1 = +25°C.
Output Voltage Accuracy
Regulation
March 2023
28701-BMR808
Rev. B
C
3/17/2023
5%
0
10
20
30
40
50
60
Load (%)
PUC15-2BG
70
80
90
100
Output voltage with load variation vs. load current at TP1 = +25°C
0%
0
10
20
30
40
50
60
Load (%)
PUC24-2BG
70
80
90
100
Output voltage with load variation vs. load current at TP1 = +25°C
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
No.
jidgezou George Zou
Approved (Document resp)
2/1301-BMR808
Checked
PUC-2BG
seriesZou
DC/DC Converters
jidgezou George
Isolated 2W Unregulated Dual Output
Date
3/17/2023
Rev
© Flex
Output Ripple & Noise
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 mV/div.).
Bottom trace: -Output voltage (10 mV/div.)
Time scale: (10 µs/div.).
Output Ripple & Noise
Output voltage ripple at:
TP1 = +25°C, VI = 12 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
20 MHz bandwidth filter +10 µF &0.1 µF
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 mV/div.).
Bottom trace: -Output voltage (10 mV/div.)
Time scale: (10 µs/div.).
Output Ripple & Noise
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 mV/div.).
Bottom trace: -Output voltage (10 mV/div.)
Time scale: (10 µs/div.).
Output Ripple & Noise
Output voltage ripple at:
TP1 = +25°C, VI = 24 V, VO = +15 /-5 V
IO = +100 / -100 mA resistive load.
20 MHz bandwidth filter +10 µF & 0.1 µF
March 2023
PUC-2BG series
Output Ripple & Noise
Output voltage ripple at:
TP1 = +25°C, VI = 15 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
20 MHz bandwidth filter +10 µF & 0.1 µF
5 (8)
Technical Specification
28701-BMR808
Rev. B
C
Typical Characteristics
Output voltage ripple at:
TP1 = +25°C, VI = 12 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
20 MHz bandwidth filter +10 µF & 0.1 µF
9
Output voltage ripple at:
TP1 = +25°C, VI = 15 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
20 MHz bandwidth filter +10 µF & 0.1 µF
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 mV/div.).
Bottom trace: -Output voltage (10 mV/div.)
Time scale: (10 µs/div.).
Output Ripple & Noise
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 mV/div.).
Bottom trace: -Output voltage (10 mV/div.)
Time scale: (10 µs/div.).
Output voltage ripple at:
TP1 = +25°C, VI = 24 V, VO = +20 /-5 V
IO = +80 / -80 mA resistive load.
20 MHz bandwidth filter +10 µF & 0.1 µF
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 mV/div.).
Bottom trace: -Output voltage (10 mV/div.)
Time scale: (10 µs/div.).
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
No.
jidgezou George Zou
Approved (Document resp)
2/1301-BMR808
Checked
PUC-2BG
seriesZou
DC/DC Converters
jidgezou George
Isolated 2W Unregulated Dual Output
Date
3/17/2023
Rev
© Flex
Shut-down
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (5 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 12 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (5 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Shut-down
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2ms/div.).
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 15 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
March 2023
PUC-2BG series
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 12 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
6 (8)
Technical Specification
28701-BMR808
Rev. B
C
Typical Characteristics
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 12 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
10
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 12 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2ms/div.).
Shut-down
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (5 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 15 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (5 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
No.
jidgezou George Zou
Approved (Document resp)
2/1301-BMR808
Checked
PUC-2BG
seriesZou
DC/DC Converters
jidgezou George
Isolated 2W Unregulated Dual Output
Date
3/17/2023
Rev
© Flex
Shut-down
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 15 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
Top trace: Input voltage (10 V/div.).
Middle trace: +Output voltage (10 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Shut-down
Top trace: Input voltage (20 V/div.).
Middle trace: +Output voltage (5 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 24 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
March 2023
PUC-2BG series
Start-up
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 24 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
7 (8)
Technical Specification
28701-BMR808
Rev. B
C
Typical Characteristics
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 15 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
11
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 24 V, VO = +15 / -5 V
IO = +100 / -100 mA resistive load.
Top trace: Input voltage (20 V/div.).
Middle trace: +Output voltage (5 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Shut-down
Top trace: Input voltage (20 V/div.).
Middle trace: +Output voltage (10 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
Start-up, enabled by connecting VI at:
TP1 = +25°C, VI = 24 V, VO = +20 / -5 V
IO = +80 / -80 mA resistive load.
Top trace: Input voltage (20 V/div.).
Middle trace: +Output voltage (10 V/div.).
Bottom trace: -Output voltage (5 V/div.).
Time scale: (2 ms/div.).
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
12
1 (4)
No.
jidgezou George Zou
3/1301-BMR808
Approved (Document resp)
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
Date
2/15/2022
Isolated 2W Unregulated Dual Output
Rev
Technical Specification
28701-BMR808
Rev. B
A
March 2023
© Flex
EMC Specification
Conducted EMI measured according to EN55032, CISPR 32
and FCC part 15J (see test set-up). See Design Note 029 for
further information. The minimum switching frequency is 20
kHz. The EMI characteristics below is measured at max IO.
Optional external filter for class B
Suggested external input filter in order to meet class B in
EN 55032, CISPR 32 and FCC part 15J.
Test set-up
Layout recommendations
The radiated EMI performance of the product will depend on
the PWB layout and ground layer design. It is also important to
consider the stand-off of the product. If a ground layer is used,
it should be connected to the output of the product and to the
equipment ground or chassis.
Series
C1
L1
C2
PUC12xxxxxD2BG
10 μF
0.91 mH
10 μF
PUC15xxxxxD2BG
10 μF
0.91 mH
10 μF
PUC24xxxxxD2BG
10 μF
0.91 mH
10 μF
A ground layer will increase the stray capacitance in the PWB
and improve the high frequency EMC performance.
Output ripple and noise
Output ripple and noise is measured according to figure
below. See Design Note 022 for detailed information.
Base on different application or PCB layout condition, the EMI
requirement maybe different.
Output ripple and noise test setup
PUC1215050D2BG
EMI with filter
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2 (4)
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jidgezou George Zou
Approved (Document resp)
13
3/1301-BMR808
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
Isolated 2W Unregulated Dual Output
Operating Information
Input Voltage
Converter with 10% input voltage range, mainly for isolated
power in industrial applications. For example, the input voltage
range 10.8 to 13.2 Vdc meets requirement of general
industrial used for 12Vdc system.
The input voltage should never exceed the absolute voltage of
the converter, and the ambient temperature must be limited to
absolute max +100°C.
The output voltage related to input voltage. Take 12Vin and ±
15Vo product as an example, if input voltage above 12V, the
output voltage will higher than ±15V. Below 12V and the
output voltage starts to track the input voltage.
Short duration transient disturbances can occur on the DC
distribution and input of the product when a short circuit fault
occurs on the equipment side of a protective device (fuse or
circuit breaker). The voltage level, duration and energy of the
disturbance are dependent on the particular DC distribution
network characteristics and can be sufficient to damage the
product unless measures are taken to suppress or absorb this
energy. The transient voltage can be limited by capacitors and
other energy absorbing devices like Zener diodes connected
across the positive and negative input conductors at a number
of strategic points in the distribution network. The end-user
must secure that the transient voltage will not exceed the
value stated in the Absolute maximum ratings. ETSI TR
100 283 examines the parameters of DC distribution networks
and provides guidelines for controlling the transient and
reduce its harmful effect.
Turn-off Input Voltage
The products do not have under voltage lock-out function.
Please make sure the input voltage of each module is correct
working range.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the product. It is important that
the input source has low characteristic impedance.The
product are designed for stable operation without external
capacitors. With a 10uF capacitors connected to the input
could reduce the input noise cause by parasitic inductance.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the load can be
improved by addition of decoupling capacitors at the load.
The most effective technique is to locate low ESR ceramic and
electrolytic capacitors as close to the load as possible, using
several parallel capacitors to lower the effective ESR. The
ceramic capacitors will handle high-frequency dynamic load
changes while the electrolytic capacitors are used to handle
Date
2/15/2022
Rev
Technical Specification
28701-BMR808
Rev. B
A
March 2023
© Flex
low frequency dynamic load changes. It is equally important to
use low resistance and low inductance PWB layouts and
cabling.
External decoupling capacitors will become part of the
product’s control loop. The control loop is optimized for a wide
range of external capacitance and the maximum and minimum
recommended value that could be used without any additional
analysis is found in the Electrical specification. The ESR of the
capacitors is a very important parameter. Stable operation is
guaranteed with a verified ESR value of >1 mΩ across the
output connections.
For further information please contact your local Flex Power
Modules representative.
Parallel Operation
This product is not designed for paralleling without using
external current sharing circuits. See Design Note 006 for
detailed information.
Short Circuit Protection (SCP)
The products include short circuit protection for protect
converter short circuit at output. The SCP works in a hiccup
mode and will make continous attempts to start up and will
resume normal operation automatically after removal of the
over current condition.
PUBLIC
PRODUCT SPECIFICATION
Prepared (Subject resp)
3 (4)
No.
jidgezou George Zou
Approved (Document resp)
Isolated 2W Unregulated Dual Output
Date
Rev
28701-BMR808
Rev. B
A
2/15/2022
© Flex
Connections
Thermal Consideration
General
The products are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
For products mounted on a PWB without a baseplate
attached, cooling is achieved mainly by conduction, from the
pins to the host board, and convection, which is dependant on
the airflow across the product. Increased airflow enhances the
cooling of the product. The Output Current Derating graph
found in the Output section for each model provides the
available output current vs. ambient air temperature and air
velocity.
The product is tested on a 95 x 85 mm, 35 µm (1 oz), 2-layer
test board mounted horizontally in a space with a volume of
300(L) x 300(W) x 200(H) mm.
Definition of product operating temperature
The temperature at the positions (TP1) should not exceed the
maximum temperatures in the table below. The number of
measurement points may vary with different thermal design
and topology. Temperatures above maximum measured at the
reference point P1 are not allowed and may cause permanent
damage.
Position
Description
Max Temp.
Driver, Reference point
Pin side (baseplate module)
Technical Specification
3/1301-BMR808
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
P1
14
TP1=115º C
Bottom View
PUCxxxxxxxD2BG series
Pin
1
Designation
+Vin
Function
Positive Input
2
-Vin
Negative Input
5
-Vo
Negative Output
6
COM
Com
7
+Vo
Positive Output
March 2023
PUBLIC
PRODUCT SPEC. MECHANICAL
Prepared (Subject resp)
No.
jidgezou George Zou
Approved (Document resp)
Checked
Date
2/18/2022
1 (2)
Technical Specification
4/1301-BMR808
PUC-2BG series DC/DC Converters
jidgezou George Zou
Isolated 2W Unregulated Dual Output
15
Rev
28701-BMR808 Rev. B
B
March 2023
© Flex
Mechanical Information – Through Hole Mounting
Recommended Footprint
All component placements – whether shown as physical components or symbolical outline – are for reference only and are subject to change throughout the product’s life cycle,
unless explicitly described and dimensioned in this drawing.
16
PUBLIC
PRODUCT SPEC.
Prepared (Subject resp)
1 (3)
No.
jidgezou George Zou
5/1301 - BMR808
Approved (Document resp)
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
Isolated 2W Unregulated Dual Output
Soldering Information – Through Hole Mounting
The hole mounted product is intended for plated through hole
mounting by wave or manual soldering. The pin temperature is
specified to maximum to 260°C for maximum 5 seconds.
A maximum preheat rate of 4°C/s and maximum preheat
temperature of 150°C is suggested. When soldering by hand,
care should be taken to avoid direct contact between the hot
soldering iron tip and the pins for more than a few seconds in
order to prevent overheating.
A no-clean flux is recommended to avoid entrapment of
cleaning fluids in cavities inside the product or between the
product and the host board. The cleaning residues may affect
long time reliability and isolation voltage.
Delivery Package Information
The products are delivered in antistatic tube.
Tube Specifications – SIP
Material
Antistatic PS
Surface resistance
105 < Ohm/square < 1012
Tube length
520 mm 20.47 [ inch]
Tube capacity
25 products (25 full tubes/box)
Tube weight
35.4 g empty, 135.4 g full tube
Module weight
4 g / pc
1 Tube=25 pcs
1 BOX = 25 (pcs/tube) * 5 (tube/bundle) * 5 (bundle) = 625 pcs
1 BOX = 625 converters
All dimensions in mm
Note: pick up positions refer to center of pocket.
See mechanical drawing for exact location on product.
Date
3/17/2023
Rev
Technical Specification
28701-BMR808
Rev. B
B
© Flex
March 2023
17
PUBLIC
PRODUCT SPEC.
Prepared (Subject resp)
2 (3)
No.
jidgezou George Zou
5/1301 - BMR808
Approved (Document resp)
Checked
PUC-2BG
series
DC/DC Converters
jidgezou
George
Zou
Isolated 2W Unregulated Dual Output
Date
3/17/2023
Technical Specification
Rev
28701-BMR808
Rev. B
B
© Flex
Product Qualification Specification
Characteristics
External visual inspection
IPC-A-610
Change of temperature
(Temperature cycling)
MI-STD-202G, method 107G
Temperature range
Number of cycles
Dwell/transfer time
-55 to 125°C
300
30 min/0-1 min
Cold (in operation)
IEC 60068-2-1 Ad
Temperature TA
Duration
-40°C
72 h
Damp heat
MIL-STD-202G, Method 103B
Temperature
Humidity
Duration
85°C
95 % RH
1000 hours
Dry heat
IEC 60068-2-2 Bd
Temperature
Duration
125°C
1000 h
Electrostatic discharge
susceptibility
IEC 61000-4-2
Air model
Contact model
15 kV
8 kV
Mechanical shock
MIL-STD-202G, method 213B
Peak acceleration
Duration
100 g
6 ms
Operational life test
MIL-STD-202G, method 108A
Duration
1000 h
Resistance to soldering heat 1
MIL-STD-202G, method 210F
Solder temperature
Duration
260°C
10 s
Robustness of terminations
IEC 60068-2-21 Test Ua1
IEC 60068-2-21 Test Ue1
Through hole mount products
Surface mount products
All leads
All leads
Solderability
J-STD-002
Preconditioning
Temperature, Pb-free
Steam ageing 8 h
245°C
Vibration
MIL-STD-202G, method 201A
Frequency
Displacement
Duration
10 to 55 Hz
0.06 inch
2 h in each direction
Notes
1
Only for products intended for wave soldering (plated through hole products)
March 2023
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