Page 1
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Features
• Single board design
• Synchronization function
• Low profile – 8.5 mm height
• Excellent co-planarity
• Input/output isolation: 1500 Vdc
• Convection cooling
• Low conducted and radiated EMI
• Output overcurrent protection
• Remote on/off (primary referenced)
• Wide output voltage trim adjust, positive or
negative
• Operating temperature to 110°C
• UL, CSA and EN/IEC60950 (3
rd
ed.) approved
Applications
• Distributed power architectures
• Telecommunications equipment
• LAN/WAN applications
• Data processing
Description
The RND series of converters are industry standard, 2” x 1” size, low profile, dual output, DC/DC converters
intended for SMT placement and reflow soldering. The product provides on-board conversion of standard
telecom, datacom and industrial input voltages to isolated low output voltages without the need for any
additional cooling. Proprietary patented manufacturing process ensures optimal quality through full process
automation. The converters are cost effective high performance alternatives to competing products on the
market.
Selection Chart
Model Input voltage
RND02ZGE-M6
RND0.8ZHH-M6
Input
range,
Vdc
38-75 0.4
36-75 0.4
current,
max Adc
Output
voltage,
Output rated
current,
Vdc
3.27 1.0 50
5.20 1.0 50
12.0 0.42 50
12.0 0.42 50
Adc
Output ripple
and noise,
mVp-p
Efficiency,
%
81
85
5-Nov-01 Rev 1.1 Page 1 of 14
www.power-one.com
Page 2
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect
long term reliability and cause permanent damage to the converter. Specifications apply over specified input
voltage, output load and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Max Units
Input voltage (Vin)
Transient Input Voltage (Vint)
Operating CaseTemp. (Tc) All operating conditions -45 110
Storage Temperature (Ts) -55 125
ON/OFF Control Voltage (Vrc) Referenced to -Vin -5 16 Vdc
Continuous
Transient, 100ms
36/38 75
100
Vdc
Vdc
°C
°C
Environmental and Mechanical Specifications
Specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter Conditions/Description Min Nom Max Units
Shock IEC68-2-27 100 g
Sinusoidal Vibration IEC68-2-6 10 g
Weight 0.6/17 oz/g
Water W ashing Standard process Yes
MTBF Per Bellcore TR-NWT-000332 2,500 kHrs
Isolation Specifications
Specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter Conditions/Description Min Nom Max Units
Insulation Safety Rating Operational
Isolation Voltage (Vps) 1,500 Vdc
Isolation Resistance (Rps) 10 MOhm
Isolation Capacitance (Cps) 2,200 pF
Input Specifications
Specifications apply over specified input voltage, output load and temperature range, unless otherwise
noted.
Parameter Conditions/Description Min Nom Max Units
Input Voltage (Vin) Continuous 36 (38) 48 75 Vdc
Input Current when Shutdown Vin.Nom, Remote Control
activated
Input Current No Load Vin.Nom, Io = 0 10 mAdc
Turn-On Input Voltage 36-75 Vin
Turn-Off Input Voltage 36-75 Vin
Turn-On Input Voltage 38-75 Vin
Turn-Off Input Voltage 38-75 Vin
Turn-On Time To Output Regulation Band
Input Reflected Ripple Current Vin.Max, Io.Max 30 mAp-p
Input Capacitance 1.4
Ramping Up, Io.Max 32 34.5 36 Vdc
Ramping Down, Io.Max 30 33.5 35 Vdc
Ramping Up, Io.Max 34 36.5 38 Vdc
Ramping Down, Io.Max 30 34.5 36 Vdc
After Remote Control
Rise Time
3
250
25
5
400 ms
mAdc
ms
ms
µF
5-Nov-01 Rev 1.1 Page 2 of 14
www.power-one.com
Page 3
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Output Specifications
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
RND03ZGE: (Vo1) 5.2V/1.0A
Parameter Conditions/Description Min Nom Max Units
Output Voltage
Setpoint Accuracy
Output Current * Io Vin.Min to Vin.Max 0.1 1.0 Adc
Line Regulation Vin.Min to Vin.Max, 50%
Load Regulation Vin.Nom, Io.Min to Io.Max 120 220 mV
Cross Regulation Io1 =1.0A, Io2 Min to Max,
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple Vr Vin.Min to Vin.Max, Io.Min to
Admissible Load Cap. Comax Io.Max, Vin.Nom 2,200
Output Current Limit
Threshold
Switching Frequency Fs Vin.Nom, Io.Max 380 kHz
Temperature Coeff. Tco 0.02
Trim Range Vt Io.Min to Io.Max, Vin.Min to
RND03ZGE: (Vo2) 3.27V/1.0A
Parameter Conditions/Description Min Nom Max Units
Output Voltage
Setpoint Accuracy
Output Current * Io Vin.Min to Vin.Max 0.1 1.0 Adc
Line Regulation Vin.Min to Vin.Max, 50%
Load Regulation Vin.Nom, Io.Min to Io.Max 100 210 mV
Cross Regulation Io2 =1.0A, Io1 Min to Max,
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple Vr Vin.Min to Vin.Max, Io.Min to
Admissible Load Cap. Comax Io.Max, Vin.Nom 3,300
Output Current Limit
Threshold
Switching Frequency Fs Vin.Nom, Io.Max 380 kHz
Temperature Coeff. Tco 0.02
Trim Range Vt Io.Min to Io.Max, Vin.Min to
* At Iout<Iout.Min, the output may contain low frequency component that exceeds ripple specifications.
Vo Vin.Nom, Io1 = 0.6A, Io2 =
0.9A, 25°C
Io.Max
measure ∆Vo1
25-75% Io.Max load step
change.
to 1% error band
Io Max, 20MHz Bandwidth
Icl Vout ≤0.90 Vo.Nom, both
outputs set to Icl
Vin.Max
Vo Vin.Nom, Io1 = 0.6A, Io2 =
0.9A, 25°C
Io.Max
measure ∆Vo2
25-75% Io.Max load step
change.
to 1% error band
Io Max, 20MHz Bandwidth
Icl Vout ≤0.90 Vo.Nom, both
outputs set to Icl
Vin.Max
5.08 5.2 5.24 Vdc
50 mV
130 mV
50 100 mVp-p
110 150 %Io.Max
4.43 5.95 Vo
3.24
40 mV
90 mV
50 100 mVp-p
110 150 %Io.Max
2.8 3.8 Vo
3.27 3.3 Vdc
200
300
200
300
± mV
µs
µF
%Vo/°C
± mV
µs
µF
%Vo/°C
5-Nov-01 Rev 1.1 Page 3 of 14
www.power-one.com
Page 4
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
RND02ZGE Characteristic curves
Cross Regulation Output 1 (+5V)
1. 2
1
Cross Regulation Output 2 (+3.3V)
1. 2
1
0.8
0.6
0.8
0.6
0.4
5V Ouptut Current (A)
0.2
0.4
5V Ouptut Current (A)
0.2
Efficiency
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0
0 0.2 0 .4 0.6 0 .8 1 1.2
3.3V Output Current (A)
Efficiency Vs Load
Vin Min
Vin Nom
Vin Max
0 25 50 75 100%
0.00
0.15
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
2.70
3.00
Iout (%)
0
0 0.2 0.4 0.6 0.8 1 1.2
3.3V Output Current (A)
5-Nov-01 Rev 1.1 Page 4 of 14
www.power-one.com
Page 5
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Output Specifications
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
RND0.8ZHH: (Vo1) +12.0V/0.42A
Parameter Conditions/Description Min Nom Max Units
Output Voltage
Setpoint Accuracy
Output Current * Io Vin.Min to Vin.Max 0.042 0.42 Adc
Line Regulation Vin.Min to Vin.Max, 50%
Load Regulation Vin.Nom, Io.Min to Io.Max 100 170 mV
Cross Regulation Io1 = 0.42A, Io2 Min to Max,
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple Vr Vin.Min to Vin.Max, Io.Min to
Admissible Load Cap. Comax Io.Max, Vin.Nom 100**
Output Current Limit
Threshold
Switching Frequency Fs Vin.Nom, Io.Max 400 kHz
Temperature Coeff. Tco 0.02
Trim Range Vt Io.Min to Io.Max, Vin.Min to
Vo
25-75% Io.Max load step
Icl Vout ≤0.90 Vo.Nom, both
Vin.Nom, Io = 0.3A, 25°C
Io.Max
measure ∆Vo2
change.
to 1% error band
Io Max, 20MHz Bandwidth
outputs set to Icl
Vin.Max
11.82 12.00 12.18 Vdc
90 mV
60 mV
40 100 mVp-p
110 150 %Io.Max
9.0 15.0 Vo
400
300
± mV
µs
µF
%Vo/°C
RND0.8ZHH: (Vo2) -12.0V/0.42A
Parameter Conditions/Description Min Nom Max Units
Output Voltage
Setpoint Accuracy
Output Current * Io Vin.Min to Vin.Max 0.042 0.42 Adc
Line Regulation Vin.Min to Vin.Max, 50%
Load Regulation Vin.Nom, Io.Min to Io.Max 100 170 mV
Cross Regulation Io1 = 0.42A, Io2 Min to Max,
Dynamic Regulation
Peak Deviation
Settling Time
Output Voltage Ripple Vr Vin.Min to Vin.Max, Io.Min to
Admissible Load Cap. Comax Io.Max, Vin.Nom 100**
Output Current Limit
Threshold
Switching Frequency Fs Vin.Nom, Io.Max 400 kHz
Temperature Coeff. Tco 0.02
Trim Range Vt Io.Min to Io.Max, Vin.Min to
* At Iout<Iout.Min, the output may contain low frequency component that exceeds ripple specifications.
** 100µF on each output
5-Nov-01 Rev 1.1 Page 5 of 14
Vo
25-75% Io.Max load step
Icl Vout ≤0.90 Vo.Nom, both
Vin.Nom, Io = 0.3A, 25°C
Io.Max
measure ∆Vo2
change.
to 1% error band
Io Max, 20MHz Bandwidth
outputs set to Icl
Vin.Max
www.power-one.com
-11.82 -12.00 -12.18 Vdc
90 mV
60 mV
40 100 mVp-p
110 150 %Io.Max
-9.0 -15.0 Vo
400
300
± mV
µs
µF
%Vo/°C
Page 6
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
RND0.8ZHH Characteristic curves
Cross Regulation Output 1 (+12V)
+12V Ouptut Current (A)
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
0.45
0.4
0.35
0.3
0.25
0.2
0.15
+12V Ouptut Current (A)
0.1
0.05
0
0 0.1 0.2 0.3 0.4 0.5
-12V Output Current (A)
Cross Regulation Output 1 (-12V)
0 0.1 0.2 0.3 0.4 0.5
-12V Output Current (A)
Efficiency
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
Efficiency Vs Load
Vin Min
Vin Nom
Vin Max
0 25 50 75 100%
0.00
0.15
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
2.70
3.00
Iout (%)
5-Nov-01 Rev 1.1 Page 6 of 14
www.power-one.com
Page 7
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Feature Specifications
All specifications apply over input voltage, output load and temperature range, unless otherwise noted.
Parameter Conditions/Description Min Nom Max Units
Remote Control:
Converter OFF
Converter ON
Sink Current
Synchronization:*
Frequency Range
RC pin is pulled low
Voltage source or open circuit
Vin=Vin.Nom
TTL compatible square wave on
sync pin. Referenced to -Vin
-1.0
4.0
450
0.3
1.0
6
600
Vdc
Vdc
mAdc
kHz
* RND02ZGE does not have this feature.
Temperature Derating Curves
The derating curves below give an indication of the output power achievable with and without forced aircooling. However in the final application, in order to ensure the reliability of the unit, care must be taken to
ensure the maximum case temperature is not exceeded under any conditions.
120
100
80
60
Output Power (%)
40
20
Output Power Vs Ambient Temp. and Airflow
400LFM (2 m/s)
200LFM (1 m/s)
0 LFM
0
0
10
20
30
40
50
60
70
80
90
100
110
Ambient Temp. (deg °C)
5-Nov-01 Rev 1.1 Page 7 of 14
www.power-one.com
Page 8
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Typical Application
This series of converters does not require any
external components for proper operation.
However, if the distribution of the input voltage to
the converter contains significant inductance, a
capacitor across the input terminals may be
required to stabilise the input voltage. A minimum
of 1µF, quality electrolytic / ceramic capacitor is
recommended for this purpose.
For output decoupling it is recommended to
connect, directly across the output pins, a 1µF
ceramic capacitor (for 3.3V and 5V outputs) or a
0.27µF ceramic capacitor (for 12V outputs).
Synchronization Feature
It is possible to synchronize the switching
frequency of one or more converters to an
external symmetrical clock signal. It is
recommended that the signal be driven by a TTL
compatible output. The rise time of the clock
signal should be less than 10ns. If the
synchronization feature is not used, it should be
left open circuit.
Turn-On Input Voltage
An external resistor can program the input voltage
at which the converter switches on. The voltage
at which the unit switches off is typically 1V below
the turn-on input voltage (Vion).
The characteristic curves below shows the typical
resistor values required to achieve adjustment of
turn-on input voltage (Vion).
To decrease Vion the resistor should be
connected between pins 10 and 11.
To increase Vion the resistor should be
connected between pins 11 and 17.
KOhm
2000
1500
1000
500
KOhm
16 0 0
14 0 0
12 0 0
10 0 0
800
600
400
200
KOhm
1600
1400
1200
1000
800
600
400
200
KOhm
1600
1400
1200
1000
800
600
400
200
RND0. 8ZHH - Re s is tan ce re q u i r e d t o
decrease Vion
0
33.8 33.66 33.33 33 32 31
Voltage (Vion)
RND0. 8ZHH - Re sis ta n c e re qu ir e d t o
increas e Vion
0
34.3 34.8 35.2 37.5 40 .5 42
Voltage (V ion)
RND02 Z GE - Re s is tan ce r e q u i r e d t o
decrease Vion
0
3 5.6 35.4 35 34 .2 3 3.5 33
Voltage (Vion)
RND02ZGE - Resistance required to increase
Vion
0
36.05 36.45 36.9 37.5 39.5 42
Voltage (Vion)
5-Nov-01 Rev 1.1 Page 8 of 14
www.power-one.com
Page 9
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Output Voltage Trim
Note: For setting nominal output voltage pin 8
must be connected to pin 9.
The trim feature allows the user to adjust the
output voltage from the nominal. This can be
used to accommodate a different requirement or
to do production margin testing.
Output voltage can be adjusted by an external
resistor. If pin 8 and pin 9 are not connected
together the output will decrease to a low value.
To increase Vo a resistor should be connected
between pin 8 / 9 and pin 17 ( -Vin). To decrease
Vo, a resistor should be connected between pin 8
and 9 (NOR).
To increase Vo:
Radj = A x (B - Vd) / (Vd - Vo) kΩ
Where: Vd = Desired output voltage
Vo = Nominal output voltage.
To reduce Vo:
Radj = C x (Vo - Vd) / (Vd - D) kΩ
Where: Vd = Desired output voltage
Vo = Nominal output voltage.
Model A B C D
RND02ZGE 0.5 3.92 2.0 2.56
RND0.8ZHH 0.572 16.126 2.243 8.295
Notes:
1. When the output voltage is trimmed up, the
output power from the converter must not
exceed its maximum rating. This is
determined by measuring the output voltage
on the output pins, and multiplying it by the
output current.
2. The trim feature allows the generation of
additional standard voltages such as ±15V
from the ±12V model.
Parallel Operation
Paralleling of two converters is possible by direct
connection of the output voltage terminal pins.
The load regulation characteristic is designed to
facilitate current sharing (typically ± 20%).
Output Current Limiting
When the output is overloaded above the
maximum output current rating, the voltage will
start to reduce to maintain the output power to a
safe level. In a condition of high overload or
short-circuit where the output voltage is pulled
below approximately 30% of Vo.Nom, the unit will
enter a ‘Hiccup’ mode of operation. Under this
condition the unit will attempt to restart,
approximately every 100ms until the overload has
cleared.
Thermal Considerations
The converter is designed for natural or forced
convection cooling. The output power of the
converter is limited by the maximum case
temperature (Tc). To ensure reliable long term
operation of the converters, and to comply with
safety agency requirements, Power-One limits
maximum allowable case temperature (Tc) to
110°C (see Mechanical Drawings).
Remote Control Feature
The remote control pin functions as a normal soft
shutdown. It is referenced to the –Vin pin. With
positive logic, when the remote control pin is
pulled low, the output is turned off and the unit
goes into a very low input power mode.
An open collector switch is recommended to
control the voltage between the remote control pin
and the -Vin pin of the converter. The remote
control pin is pulled up internally, so no external
voltage source is required. The user should avoid
connecting a resistor between the remote control
pin and the +Vin pin.
The user must take care to ensure that the pin
reference for the control is connected close to the
-Vin pin. The control signal must not be
referenced ahead of EMI filtering, or remotely
from the unit. If the remote control pin is not used,
it can be left floating.
5-Nov-01 Rev 1.1 Page 9 of 14
www.power-one.com
Page 10
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Safety Considerations
These converters feature 1500 Volt DC isolation
from input to output. The input to output
resistance is greater than 10MOhm. These
converters are provided with Operational
Insulation between input and output circuits
according to EN60950 / UL1950 / CSA60950-00.
Nevertheless, if the system using the converter
needs to receive safety agency approval, certain
rules must be followed in the design of the
system. In particular, all of the creepage and
clearance requirements of the end-use safety
requirements must be observed. These
documents include UL60950, CSA60950-00 and
EN60950, although specific applications may
have additional requirements.
In order for the output of the converter to be
considered as SELV (Safety Extra Low Voltage)
or TNV-1, according to EN60950 / UL1950 /
CSA60950-00, one of the following requirements
must be met in the system design:
• The converter has no internal fuse. An
external fuse must be provided to protect the
system from catastrophic failure. A fuse with a
rating not greater than 2.0A is recommended.
The user can select a lower rating fuse based
upon the inrush transient and the maximum
input current of the converter, which occurs at
the minimum input voltage. Both input traces
and the chassis ground trace (if applicable)
must be capable of conducting a current of 1.5
times the value of the fuse without opening.
The fuse must not be placed in the grounded
input line, if any.
• If the voltage source feeding the module is
SELV, the output of the converter is
considered SELV and may be grounded or
ungrounded.
• The circuitry of the converter may generate
transients, which exceed the input voltage.
Even if the input voltage is SELV (<60V) the
components on the primary side of the
converter may have to be considered as
hazardous. A safety interlock may be needed
to prevent the user from accessing the
converter while operational.
EMC Specifications
Conducted Noise:
The converters meet the requirements of
EN55022, CISPR22 and FCC CFR title 47 part 15
Sub-part J - Conducted (conducted noise on the
input terminals) without any external components.
The results for this solution are displayed below.
To meet level B for the above standards it is
necessary to fit a 3.3µF ceramic capacitor across
the input terminals.
dbµV
80
70
60
50
40
30
20
10
0
0.1 1 10 30
1. E +0 5 1. E + 0 6 1. E +0 7 1. E +0 8
Electromagnetic Susceptibility:
Standard Applied
Electrostatic
Discharge
EN61000-4-2
Electromagnetic
Field
EN61000-4-3
Electrical Fast
Transient
EN61000-4-4
Conducted
Disturbances
EN61000-4-6
* A denotes normal operation, no deviation from
specification. B denotes temporary deviation from
specification is possible.
Conducte d EMI (Input Terminals)
EN55022 A QP.
EN55022 A A V.
FREQ ( MHz)
Stress
2KV to
pins
3V/m
2000 Vp
to input
3Vrms to
input
Class
Level
Performance
Outcome *
1
2
3
2
B
A
B
B
5-Nov-01 Rev 1.1 Page 10 of 14
www.power-one.com
Page 11
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Surface Mount Assembly
Soldering:
The following instructions must be observed when
soldering the unit. Failure to observe these
instructions may result in failure or significant
degradation of the module performance. PowerOne will not honor any warranty claims arising
from failure to observe these instructions.
This product is approved for forced convection
reflow soldering only.
The curves below define the maximum peak
reflow temperature permissible measured on
Pins 1 and 10 of the converter.
The lead-frame is constructed for a high
temperature glass filled, UL94V0 flame retardant,
diallyl ortho-phthalate moulding compound
commonly used for packaging of electronics
components. It has passed NASA outgassing
tests and is certified to MIL-M-14. The coefficient
of thermal expansion is equivalent to FR4.
The gull wing leads are formed to ensure optimal
solder joint strength and structure. Furthermore
they facilitate visual inspection (manual or
automatic). The leads are formed from a 97% Cu
alloy plated with Cu and Sn 90. This material is
commonly used in the manufacture of integrated
circuits. It has good corrosion resistance and
exhibits the nobility inherent to all high copper
alloys. Unlike brasses, this material is essentially
immune to stress corrosion cracking. It also
exhibits excellent solderability. It is readily
wetted by solders and performs well in standard
solderability tests. (Dip of Class II or better).
The product is manufactured with a patented
process, which is fully automated, and ‘in-line’.
This ensures that there is no contamination or
mechanical stress on the lead-frame so that the
co planarity and solderability are maintained.
The product is shipped in JEDEC trays to
guarantee preservation of the co-planarity and
enable fully automated assembly in the final
application.
5-Nov-01 Rev 1.1 Page 11 of 14
www.power-one.com
Max. temp. on pins 1 and 10 during reflow
.
soldering (deg C)
300
250
200
Peak Temperature
(See fig below)
150
100
50
tp
0
0
40
80
120
160
200
190 – 450 s
240
280
320
360
400
440
Time (s)
Restriction curve above 215ºC
Peak temp. at pins 1 and 10 (ºC)
245
240
235
230
225
220
215
210
205
200
10 20 30 40 50 60
tp (s)
Pick & Place Assembly:
The product is designed with a large flat area in
the center of the top surface to serve as a pick up
point for automated vacuum pick and place
equipment. The ‘open board’ construction of the
unit ensures that weight is kept to a minimum.
However due to the relatively large size of the
component, a large nozzle (> 4.0mm, depending
on vacuum pressure) is recommended for picking
and placing.
The unit may also be automatically handled using
‘odd-form’ placement equipment, with mechanical
grippers. For this type of equipment the end
edges of the device, which have no leads and
also feature the greatest dimensional accuracy,
should be used as pick-up points.
Page 12
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Mechanical Drawing
Note:- mm[inches]
Tolerances: -
0.5-10 ±0.1
10-100 ±0.2
47.4 [1.866]
7.4 [0.291]
28 [1.102] 25.4 [1]
Pin 1
Tc
&
2.6 [0.102]
3.7 [0.146]
Pick up point
Top View
]
5
3
3
.
0
[
5
.
8
45.6 [1.795]
]
4
1
1
.
0
[
9
.
2
Height Profile
5-Nov-01 Rev 1.1 Page 12 of 14
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Page 13
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
18 17 16 15 14 13 12 11 10
24 [0.945]
1 2 3 4 5 6 7 8 9
5 [0.197]
40 [1.575]
]
1
1
.
0
[
8
.
2
29.6 [1.165]
3.6 [0.142]
Recommended land pattern
Tray pickup point
JEDEC TRAY
5-Nov-01 Rev 1.1 Page 13 of 14
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Page 14
Product Specifications
RND Series: 8-10W DC/DC Converters Nov 2001
38-75V Input
3.3V & 5.0V, ±12V Dual Outputs (±15V, available with trimming)
Pin-Out
Pin Designation Function Reference
1 Vout1 Output voltage 1 Secondary
2 Rtn Output voltage return Secondary
3 Vout2 Output voltage 2 Secondary
4 NC Not connected Secondary
5 NC Not connected Secondary
6 NC Not connected Primary
7 Sync Synchronization Input Primary
8 Trim Output voltage adjust.
Note: - To set nominal output voltage
connect pins 8 and 9 together
9 NOR Connection for nominal output voltage Primary
10 TOA Turn-on/off input voltage adjust Primary
11 RC Remote control. Pull low to turn unit off Primary
12 NC Not connected Primary
13 NC Not connected Primary
14 NC Not connected Primary
15 NC Not connected Primary
16 NC Not connected Primary
17 -Vin Negative input voltage Primary
18 +Vin Positive input voltage Primary
Primary
Ordering Information
Options Suffixes to part number
Surface Mount Version, shipped in JEDEC Tray
Suffix “–M6”.
Through hole (leaded) version. Consult factory for availability.
Notes
1. Consult factory for the complete list of available options.
2. Power-One products are not authorized for use as critical components in life support systems, equipment used in hazardous
environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.
3. Specifications are subject to change without notice.
5-Nov-01 Rev 1.1 Page 14 of 14
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