BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X BP5220, BP5221, BP52
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converter
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
BP5220, BP5221, BP5222, BP5220X, BP5221X, BP5222X converters that pulse width modulation (PWM) system. They contain control circuits, switching devices, rectifiers, coils, operate only connecting smoothing capacitor. With high efficiency power conversion, modules available stand-alone 9-pin packages with heat sink required. They applied various purposes fine-adjusting output voltage switching off. With wide range input voltage, modules best suited obtaining stable local power supply from main power supply with large voltage variation. Applications Power supplies copiers, personal computers, facsimiles, equipment, measuring instruments, vending machines, security device, registers, industrial equipment, maintenance tools Features Wide range input voltage. High power conversion efficiency. Built-in output switch. Applicable various purposes fine-adjusting output voltage.
Small number external components required. Heat sink unnecessary. Compact package. BP5220 BP5221 BP5222 SIP9 BP5220X BP5221X BP5222X SIP9(L-shaped lead type)
List series
BP5220 BP5220X BP5221 BP5221X BP5222 BP5222X Input voltage Output voltage Output current Power conversion effciency 8~38 (VIN=15V) 8~38 (VIN=15V) 15~38 (VIN=20V) Unit
Absolute maximum ratings (Ta=25°C)
Parameter Input voltage Output current Operating temperature range Storage temperature range Symbol Topr Tstg Limits BP5220 BP5220X 8~38 BP5221 BP5221X 8~38 -20~+70 -25~+80 BP5222 BP5222X 15~38 Unit
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
Block diagram
BP5220 BP5221 BP5222
DRIVE CIRCUIT
POWER SUPPLY CIRCUIT
CONTROL CIRCUIT
VOUT
Electrical characteristics BP5220 BP5220X (Unless otherwise noted: VIN=15V, IO=0.5A, SW=1, Ta=25°C)
Parameter Input voltage Output voltage Output current Line regulation Load regulation Output ripple voltage Power conversion efficiency Switching frequency resistance resistance Symbol Min. 4.75 Typ. Max. 5.25 Unit mVPP 4.75V 0.1V, SW=2 select IO=1A VIN=8V~38V IO=0.1A~1A
Conditions
ROFF
Derating required according input voltage ambient temperature. Pulse noise included.
BP5221 BP5221X (Unless otherwise noted: VIN=15V, IO=0.25A, SW=1, Ta=25°C)
Parameter Input voltage Output voltage Output current Line regulation Load regulation Output ripple voltage Power conversion efficiency Switching frequency resistance resistance Symbol Min. 4.75 Typ. Max. 5.25 Unit mVPP 4.75V 0.1V, SW=2 select IO=0.5A VIN=8V~38V =0.05A~0.5A
Conditions
ROFF
Derating required according input voltage ambient temperature. Pulse noise included.
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
BP5222 BP5222X (Unless otherwise noted VIN=20V, IO=0.25A, SW=1, Ta=25°C)
Parameter Input voltage Output voltage Output current Line regulation Load regulation Output ripple voltage Power conversion efficiency Switching frequency resistance resistance Symbol ROFF Min. 11.2 Typ. Max. 12.8 Unit mVPP 11.2V 0.1V, SW=2 select IO=0.5A
Conditions
VIN=15V~38V IO=0.05A~0.5A
Derating required according input voltage ambient temperature. Pulse noise included.
Measurement circuit
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X Input
100µF 470µF 0.47µF
Outrput
200k
4.7k
Frequency counter 100µF/50V, 470µF/50V series NICHIKON(Low-impedance type)
Fig.1
Switching frequency=1/T
Output ripple voltage
Note that output ripple voltage depends type characteristics output capacitor.
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
Circuit operation basic application examples shown Fig.2. externally installed parts only input output smoothing capacitors. Switching output voltage allowed. output switched making open (high impedance). (See Fig.3) Fine adjustment output voltage allowed. fine adjustment output voltage performed from resistor connecting output terminal (pin GND.(See application example3)
sure fuse safety
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
sure fuse safety
100µF
470µF
Fig.2
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
OUTPUT
100µF
470µF
Fig.3
Application example Application example converter with protection circuit
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
OUTPUT VOLTAGE
0.22
=24V
100µF 2.2M
470µF
0.1µF
COMP.
120pF
BA10393
OUTPUT CURRENT
Fig.4
Fig.5
resistor secure rise output power resistance selected depends input voltage. This standard application. Because control current fluctuates with variations circuits components, control current adding sufficient margin normal current level.
Application example Output control
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
sure fuse safety
470µF
100µF 100k 2SC1740 100k
Fig.6
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
Application example Output voltage fine adjustment When reducing output voltage
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
sure fuse safety
When increasing output voltage
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
sure fuse safety
470µF
100µF
470µF
100µF
Fig.7
Fig.8
value setting equations(The output voltage after adjustment denoted Vo.) When reducing output voltage BP5220 BP5221, BP5220X BP5221X R=(VO-1.281) (0.0278-0.00556VO) BP5222, BP5222X R=(Vo-1.281) (0.1196-0.01Vo) When increasing output voltage BP5220 BP5221, BP5220X BP5221X R=11160 (48.4Vo-242) BP5222, BP5222X R=1200 (9.368Vo-112) make full ability module products, recommended output voltage adjusted within output voltage rating. When output voltage increased 20%, instance, minimum input voltage also increased 20%. (Example When output voltage changed from BP5220, minimum input voltage changed from 9.6V) Application example Slow start slow start circuit mitigates pulse load internal switching transistor when input voltage applied, rises output voltage gradually starting switching operation slowly. This application useful preventing malfunction external protection circuit rush current, serve countermeasure against operation outside safe operation range.
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
sure fuse safety
470µF
100µF
470k 2SC1740R 100k
10µF
Fig.9
slow-start capacitor mitigating over rush current that flows into modules when switch turned
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
Operation notes output current should reduced according increase input voltage ambient temperature. modules within derating curve range. Pins connected. circuit installed modules protect against over output currents. Take physical safety measures such fusing short-circuit loading probable. large rush current flow module when input voltage applied output controlled with without capacitor such application Operating within safe operation ranges shown Figs.12, safe operation range determined safe operation range internal switching transistor. amount rush current depends output impedance input power supply capacitors connected module outputs. pulse load internal switching transistor start operation reduced using protection circuit application slow start circuit application Electrical characteristic curves BP5220, BP5220X
1200 1000 VIN=34V VIN=38V
CURRENT FLOWING INTO PIN9 =23V =38V
Tc=25°C SINGLE PULSE Pw=1ms Pw=0.2ms
OUTPUT CURRENT (mA)
VIN=8~15V VIN=25V VIN=30V EFFICIENCY
1000
AMBIENT TEMPERATURE Ta(°C)
OUTPUT CURRENT
VOLTAGE BETWEEN PIN2 PIN9
Fig.10 Derating curve
Fig.11 Efficiency
Fig.12 Safety operation range
BP5221, BP5221X
OUTPUT CURRENT VIN=8~20V VIN=30~38V EFFICIENCY =23V OUTPUT CURRENT INTO PIN9 Pw=10ms Tc=25°C SINGLE PULSE Pw=1ms
=38V
AMBIENT TEMPERATURE (°C)
OUTPUT CURRENT
VOLTAGE BETWEEN PIN2 PIN9
Fig.13 Derating curve
Fig.14 Efficiency
Fig.15 Safety operation range
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
BP5222, BP5222X
VIN=23V OUTPUT CURRENT
VIN=15~20V
OUTPUT CURRENT INTO PIN9
Tc=25°C SINGLE PULSE Pw=10ms Pw=1ms
EFFICIENCY
VIN=38V =30V
VIN=30V VIN=38V
AMBIENT TEMPERATURE (°C)
OUTPUT CURRENT
VOLTAGE BETWEEN PIN2 PIN9
Fig.16 Derating curve
Fig.17 Efficiency
Fig.18 Safety operation range
pin9 sink current
BP5220 BP5221 BP5222 BP5220X BP5221X BP5222X
Voltage developed between pins
Fig.19 measurement circuit
External dimensions (Units
28.0 Max. 12.0 Max. 1pin SIDE MARK 28.0 Max. 12.0 Max.
1pin SIDE MARK
Marked side
19.5 Max.
2.54
0.5±0.1
21.5 Max.
Marked side
Max. +1.0 -0.5
Max.
Max.
Max.
+0.2 -0.1
p=2.54±0.2
SIP9
SIP9 forming)
Precautions ROHM Power Module
Safety Precautions
products designed produced application ordinary electronic equipment equipment, equipment, telecommunication equipment, home appliances, amusement equipment etc.). products used devices requiring extremely high reliability (medical equipment, transport equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, equipment including accessories, safety devices, etc.) whose malfunction operational error endanger human life sufficient fail-safe measures, please consult with Company's sales staff advance. product malfunctions result serious damage, including that human life, sufficient fail-safe measures must taken, including following: Installation protection circuits other protective devices improve system safety Installation redundant circuits case single-circuit failure products designed standard environment special environments. Application products special environment deteriorate product performance. Accordingly, verification confirmation product performance, prior use, recommended used under following conditions: various types liquid, including water, oils, chemicals, organic solvents outdoors where products exposed direct sunlight, dusty places places where products exposed winds corrosive gases, including Cl2, H2S, NH3, SO2, places where products exposed static electricity electromagnetic waves proximity heat-producing components, plastic cords, othe flammable items involving sealing coating products with resin other coating materials involving unclean solder water water-soluble cleaning agents cleaning after soldering products places subject condensation products radiation resistant. Company responsible problems resulting from products under conditions recommended herein. Company should notified product safety issues. Moreover, product safety issues should periodically monitored customer.
Precautions Regarding Application Example External Circuits
change made constant external circuit, allow sufficient margin variations characteristics products external components, including transient characteristics, well static characteristics. Please informed that Company conducted investigations whether particular changes application examples external circuits would result infringement patent rights third party. application examples, their constants, other types information contained herein applicable only when products used accordance with standard methods. Therefore, mass production intended, sufficient consideration external conditions must made.
Prohibitions Regarding Industrial Property
These Specifications contain information related Company's industrial property. them other than pertaining usage appropriate products permitted. Duplication these Specifications disclosure third party without Company's permission prohibited. Information data products, including application examples, contained these specifications simply reference; Company does guarantee industrial property rights, intellectual property rights, other rights third party regarding this information data. Accordingly, Company does bear responsibility for: infringement intellectual property rights third party problems incurred products listed herein. Company prohibits purchaser products exercise intellectual property rights, industrial property rights, other rights that either belong controlled Company, other than right use, sell, dispose products.
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