Rohm BP5029 Compact and light Datasheet

DC / DC converter
BP5029
The BP5029 is a DC / DC converter module that uses a self-oscillation system. It contains switching devices,
rectifiers and coils. The module is available in stand-alone 6-pin SIP packages with no heat sink required.
Applications
Household appliances, OA equipment and industrial equipment
Features
1) Compact and light.
2) Built-in over current protection circuit.
3) Small number of external components required.
Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power supply voltage
VIN
20
V
Operating temperature
Topr
−10~+80
°C
Storage temperature
Tstg
−25~+105
°C
Recommended operating conditions (Ta=25°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
VIN
8
−
16
V
Symbol
Min.
Typ.
Max.
Unit
Input voltage
VIN
8
−
16
V
Output voltage
VO
4.7
5.0
5.3
V
Output current
IO
0
−
300
mA
Line regulation
VL
−
0.03
0.10
V
VIN=8~15V, IO=300mA
Load regulation
VR
−
0.07
0.15
V
VIN=12V, IO=0~300mA
Output ripple voltage
Vp
−
0.06
0.15
VPP
VIN=12V, IO=300mA
η
77
82
−
%
VIN=12V, IO=300mA
Input voltage
Electrical characteristics (Ta=25°C)
Parameter
Power conversion efficiency
Conditions
VIN=12V, IO=100mA
VIN=12V
∗1
∗2
∗1 Maximum output current varies depending on ambient temperature : please refer to derating curve.
∗2 Spike noise is not included in output ripple voltage.
1/4
BP5029
Pin descriptions
Pin name
Pin No.
Function
VIN2
(Internally connected with pin 2.)
2
VIN1
(Internally connected with pin 1.)
4
GND
(Internally connected with pin 5.)
5
GND
(Internally connected with pin 4.)
6
VOUT
1
Pin 3 is removed.
Measurement circuit
BP5029
1
2
4
5
6
Be sure to use
fuse for safety
VIN
+
C1
100µF
+
+ C2
100µF
Use a low-impedance product for switching power supplies for the I/O capacitor.
Fig.1
Operation notes
(1) The output current needs to be reduced as the ambient temperature rises.(Please refer to the derating
curve.)
(2) Lead pins should be securely connected. If lead pins are not securely connected, irregular voltages could
be produced, causing breakdowns and damage.
(3) Please I/O external capacitors as near as possible to the connection pins. Output ripple voltage might be
larger.
(4) Be minded to use external parts within the specified range. In case that the parts with other than the
specified range, it will not only result in dissatisfactory fulfillment of the specifications but may also cause
the failures.
(5) Watch out for chattering when the power is turned on. If chattering when the power is turned on, do not
use exceeding the maximum input voltage.
(6) In the case of loads such as motors or relays, take measures so that over voltage is not applied to the
module input / output terminals due to counter-electromotive force when turning power on / off, and
current does not exceed absolute maximum rating.
(7) Make sure that the absolute maximum rated value is not exceeded when locking, reversely rotating, or
starting the motor.
(8) Condensation
When the insulation between the terminals is deteriorated due to condensation, normal activation may
sometime be hindered. Please be careful with the condensation especially between the external coils,
and between the input terminals.
(9) Operating temperature
Be sure to use within the derating curve. Particularly, in case that this product is used in the closed vessel,
be sure to measure the temperature, and make sure that it is within the derating curve.
(10) Do not attempt to apply static electricity at the time of installation or storage. It may cause breakage.
(11) The over output voltage should not be applied to the output terminal.
(12) Since there may be a case that the output voltage cannot be increased if the reverse voltage is applied
to the output terminal, make sure that the reverse voltage should not be applied when supplying the
power source.
(13) In case that vibration is significant, be minded to use this product after fixing it.
2/4
BP5029
Electrical characteristic curves (Units : mm)
0.35
100
5.30
OUTPUT VOLTAGE : VO (V)
0.3
80
EFFICIENCY : η (%)
OUTPUT CURRENT : IO (A)
VIN=12.0V
90
0.25
0.2
0.15
0.1
70
60
50
40
30
20
0.05
5.20
5.10
VIN=16.0V
VIN=12.0V
5.00
VIN=8.0V
4.90
4.80
10
0
-20
0
20
40
60
80
100
0
0
0.1
AMBIENT TEMPERATURE : Ta (°C)
0.2
OUTPUT CURRENT : IO (A)
Fig.3 Conversion efficiency
Fig.2 Derating carve
0.3
4.70
0
0.1
0.2
0.3
OUTPUT CURRENT : IO (A)
Fig.4 Output characteristic
5.20
5.10
IO=0mA
5.00
IO=100mA
IO=300mA
4.90
4.80
4.70
8.0
10.0
12.0
14.0
16.0
INPUT VOLTAGE : VIN (V)
Fig.5 Line regulation
External dimensions (Units : mm)
11.5Max.
19.3Max.
Marked side
18.3Max.
4.0±1.0
OUTPUT VOLTAGE : VO (V)
5.30
1
2
4
5
6
0.5±0.5
1.3±0.2
3.25Max.
0.25±0.05
2.54±0.2
4.75Max.
2.54×5=12.7
6.75Max.
SIP6
3/4
Precautions on Use of ROHM Power Module
Safety Precautions
1) The products are designed and produced for application in ordinary electronic equipment (AV equipment,
OA equipment, telecommunication equipment, home appliances, amusement equipment etc.).
If the products are to be used in devices requiring extremely high reliability (medical equipment, transport
equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or operational error may endanger human life
and sufficient fail-safe measures, please consult with the Company's sales staff in advance. If product
malfunctions may result in serious damage, including that to human life, sufficient fail-safe measures
must be taken, including the following:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits in the case of single-circuit failure
2) The products are designed for use in a standard environment and not in any special environments.
Application of the products in a special environment can deteriorate product performance. Accordingly,
verification and confirmation of product performance, prior to use, is recommended if used under the
following conditions:
[a] Use in various types of liquid, including water, oils, chemicals, and organic solvents
[b] Use outdoors where the products are exposed to direct sunlight, or in dusty places
[c] Use in places where the products are exposed to sea winds or corrosive gases, including
Cl2, H2S, NH3, SO2, and NO2
[d] Use in places where the products are exposed to static electricity or electromagnetic waves
[e] Use in proximity to heat-producing components, plastic cords, or othe flammable items
[f] Use involving sealing or coating the products with resin or other coating materials
[g] Use involving unclean solder or use of water or water-soluble cleaning agents for cleaning after
soldering
[h] Use of the products in places subject to dew condensation
3) The products are not radiation resistant.
4) The Company is not responsible for any problems resulting from use of the products under conditions not
recommended herein.
5) The Company should be notified of any product safety issues. Moreover, product safety issues should be
periodically monitored by the customer.
Precautions Regarding Application Example and External Circuits
1) If change is made to the constant of an external circuit, allow a sufficient margin due to variations of the
characteristics of the products and external components, including transient characteristics, as well as
static characteristics. Please be informed that the Company has not conducted investigations on whether
or not particular changes in the application examples or external circuits would result in the infringement
of patent rights of a third party.
2) The application examples, their constants, and other types of information contained herein are applicable
only when the products are used in accordance with standard methods.
Therefore, if mass production is intended, sufficient consideration to external conditions must be made.
Prohibitions Regarding Industrial Property
1) These Specifications contain information related to the Company’s industrial property. Any use of them
other than pertaining to the usage of appropriate products is not permitted. Duplication of these
Specifications and its disclosure to a third party without the Company’s permission is prohibited.
2) Information and data on products, including application examples, contained in these specifications are
simply for reference; the Company does not guarantee any industrial property rights, intellectual property
rights, or any other rights of a third party regarding this information or data. Accordingly, the Company
does not bear any responsibility for:
[a] infringement of the intellectual property rights of a third party
[b] any problems incurred by the use of the products listed herein.
3) The Company prohibits the purchaser of its products to exercise or use the intellectual property rights,
industrial property rights, or any other rights that either belong to or are controlled by the Company, other
than the right to use, sell, or dispose of the products.
4/4
Similar pages