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| BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module DC / DC converter BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A The BP5232-25A, BP5232-33A, BP5233-33A and BP5234-33A are DC / DC converters that use PWM system and VIF system. They contain control circuits, switching devices and coils, and operate by only connecting an I/O smoothing capacitor. With a high efficiency of power conversion, the modules are available in stand-alone SIP packages with no heat sink required. !Applications Power supplies for copiers, personal computers, facsimiles, industrial equipment, and AV eqipment !Features 1) High power conversion efficiency. (BP5233-33A : 93%) 2) Large output current. 3) Low current consumption with no load. (BP5233-33A : 200A Typ.) 4) High conversion efficiency. (85% at output current of 100mA) 5) Applicable to various purposes by fine-adjusting output voltage with external circuits. 6) Built-in ON / OFF switch. 7) Heat sink unnecessary. ! Absolute maximum ratings (Ta=25C) Parameter Input voltage Output current Operating temperature Storage temperature Symbol VIN IO Topr Tstg 2 2 -20 ~ +55 -25 ~ +80 Limits BP5232-25A BP5232-33A BP5233-33A BP5234-33A 7 3 4 Unit V A C C Derating required according to the input voltage and ambient temperature.. !Recommended operating conditions (Ta=25C) Parameter Input voltage Symbol VIN Min. 4.5 Typ. 5.0 Max. 5.5 Unit V BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !Block diagram BP5232-25A / BP5232-33A BP5233-33A / BP5234-33A VIN=5V 9 2 VO VIN=5V 9 2 VO 470F 1000F 10 3 1000F + + 10 3 11 Control circuit 1 Control circuit 1 7 CTL signal ON / OFF CTL signal ON / OFF 7 6 5 4 6 5 4 !Pin descriptions BP5232-25A , 5232-33A Pin No. 1 2 3 4 5 Pin description Feed back BP5233-33A , BP5234-33A Pin No. 6 7 9 10 Pin description GND CTL VIN1 VIN2 Pin No. 1 2 3 4 5 Pin description Feed back Pin No. 6 7 9 10 11 Pin description GND CTL VIN1 VIN2 VIN3 VOUT1 VOUT2 GND GND VOUT1 VOUT2 GND GND Pin 8 is removed. Pin 8 is removed. !Electrical characteristics BP5232-25A (Unless otherwise noted, VlN=5V, IO=1A, SW=1, Ta=25C) Parameter Input voltage Output voltage Output current Current consuption at no load Load regulation Output ripple voltage Power conversion efficiency CTL pin ON voltage CTL pin OFF voltage Symbol VIN VO IO IIN VO VON Min. 4.5 2.4 - - - - 84 1.8 Typ. 5 2.5 - 200 13 33 89 - Max. 5.5 2.6 2 300 33 150 - - Unit V V A A mV mVPP % V IO=0.1A~2A 2 1 Conditions Measurement circuit Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 VOFF 0.3 - - (Alternatively, when OPEN) V SW=2 Fig.1 1 Derating required according to the input voltage and ambient temperature. 2 Pulse noise not included. 470F + + BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module BP5232-33A (Unless otherwise noted, VlN=5V, IO=1A, SW=1, Ta=25C) Parameter Input voltage Output voltage Output current Current consuption at no load Load regulation Output ripple voltage Power conversion efficiency CTL pin ON voltage CTL pin OFF voltage Symbol VIN VO IO IIN VO VON Min. 4.5 3.17 - - - - 88 1.8 Typ. 5 3.3 - 200 16 33 93 - Max. 5.5 3.43 2 300 42 150 - - Unit V V A A mV mVPP % V IO=0.1A~2A 2 1 Conditions Measurement circuit Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 Fig.1 VOFF 0.3 - - (Alternatively, when OPEN) V SW=2 Fig.1 1 Derating required according to the input voltage and ambient temperature. 2 Pulse noise not included. BP5233-33A (Unless otherwise noted, VlN=5V, IO=1.5A, SW=1, Ta=25C) Parameter Input voltage Output voltage Output current Current consuption at no load Load regulation Output ripple voltage Power conversion efficiency CTL pin ON voltage CTL pin OFF voltage Symbol VIN VO IO IIN VO VON Min. 4.5 3.17 - - - - 88 1.8 Typ. 5 3.3 - 200 16 33 93 - Max. 5.5 3.43 3 300 42 150 - - Unit V V A A mV mVPP % V IO=0.1A~3A 2 1 Conditions Measurement circuit Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 VOFF 0.3 - - (Alternatively, when OPEN) V SW=2 Fig.2 1 Derating required according to the input voltage and ambient temperature. 2 Pulse noise not included. BP5234-33A (Unless otherwise noted, VlN=3.3V, IO=2A, SW=1, Ta=25C) Parameter Input voltage Output voltage Output current Current consuption at no load Load regulation Output ripple voltage Power conversion efficiency CTL pin ON voltage CTL pin OFF voltage Symbol VIN VO IO IIN VO VON Min. 4.5 3.17 - - - - 88 1.8 Typ. 5 3.3 - 200 16 33 93 - Max. 5.5 3.43 4 300 42 150 - - Unit V V A A mV mVPP % V IO=0.1A~4A 2 1 Conditions Measurement circuit Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 VOFF 0.3 - - (Alternatively, when OPEN) V SW=2 Fig.2 1 Derating required according to the input voltage and ambient temperature. 2 Pulse noise not included. BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !Measurement circuit BP5232-25A / BP5232-33A 10 9 2 SW 1 7 6 5 4 3 2 1 VO A VIN A 1000F / 50V V C2 C1 + + 470F / 50V 0.47F V C3 f f : frequency counter C1, C2 : Low impedance type C3 : film capacitor A large ripple current flows to the input smoothing capacitor due to the output load. Be minded to use within the allowable ripple current of the capacitor. The capacitor with a particularly low impedance is used as the output smoothing capacitor C2 so as to suppress the output ripple voltage. Select the capacitor according to the purpose of use in each case. Fig.1 T Switching frequency=1 / T Output ripple voltage Note that the output ripple voltage depends on the type and characteristics of the output capacitor. BP5233-33A / BP5234-33A 11 10 9 2 SW 1 7 6 5 4 3 2 1 VO A VIN A 1000F / 50V V C1 + 470F / 50V C2 + 0.47F V C3 f : frequency counter f C1, C2 : Low impedance type C3 : film capacitor A large ripple current flows to the input smoothing capacitor due to the output load. Be minded to use within the allowable ripple current of the capacitor. The capacitor with a particularly low impedance is used as the output smoothing capacitor C2 so as to suppress the output ripple voltage. Select the capacitor according to the purpose of use in each case. Fig.2 T Switching frequency=1 / T Output ripple voltage Note that the output ripple voltage depends on the type and characteristics of the output capacitor. BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !Circuit operation (1) The basic application examples are shown in Fig.3. The externally installed parts are only the input and output smoothing capacitors. (2) Switching on and off the output voltage is allowed. The output can be switched off by making pin 7 to be low or open (high impedance). (See Fig.4.) (3) Fine adjustment of the output voltage is allowed. The fine adjustment of output voltage can be performed from pin 1 via the resistor by connecting the output terminal (pin 2, 3) and GND. (See Fig.5.) Basic application BP5232-25A / BP5232-33A VIN 10 9 7 6 5 4 3 2 1 BP5233-33A / BP5234-33A VO VIN 11 10 9 7 6 5 4 3 2 1 VO + 1000F + 470F + 1000F + 470F Fig.3 Output ON / OFF control BP5232-25A / BP5232-33A 10 9 7 6 5 4 3 2 1 11 10 9 BP5233-33A / BP5234-33A 7 6 5 4 3 2 1 VIN SW + 1000F + 470F VO VIN SW + 1000F + 470F VO Fig.4 !Application example Output voltage fine adjustment BP5232-25A / BP5232-33A VIN 10 9 7 6 5 4 3 2 1 BP5233-33A / BP5234-33A VO' R1 VIN 11 10 9 7 6 5 4 3 2 1 VO' R1 VO R2 SW + 1000F 470F + SW + 1000F VO R2 VO' value setting equations R1 VO'=VO 1+ R1+R2 50k R2 ( ) It is recommended that the output voltage should be adjusted within the range of 10% of the rated output voltage, so that the performance of the module can fully be exhibited. Fig.5 BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !Operation notes (1) The output current should be reduced according to an increase in the input voltage or ambient temperature. Use the module within the derating curve range. (2) In case that the output is controlled by switching on and off utilizing pin 7 or in case that the input voltage is applied, a large inrush electrical current may flow. Be minded to use within the allowable operating range. This allowable operating range is specified by the safety operating range of the switching transistor in the module. The amount of the inrush current varies depending on the output impedance of the input electrical power or the capacity value of the capacitor to be connected to the output. (3) Protection circuit for output current is incorporated. In case that the output is short-circuited, the output will be latched by switching off. The protection circuit can be cancelled by making CTL terminal active state (CTL=HIGH), after once making it standby state (CTL=LOW), or by resupplying the power. However, in case that the protection circuit is cancelled by resupplying the power source, it may not be cancelled even by resupplying the power source in the state that the electrical charge is remained in CIN (the state that voltage is remained in VIN) even after the power source is switched off. (4) The leading time of the input voltage should be made within 5ms. There may be a case that the protection circuit is activated. (5) I / O smoothing capacitors should be connected between I / O and GND terminals. (6) Normally, use by short-circuiting pins 1, 2, 3, pins 4, 5, 6, and pins 9, 10, 11 (BP5232-25A) respectively. (7) A large ripple current flows to the input smoothing capacitor due to the output load. Be minded to use within the allowable ripple current of the capacitor. (8) The capacitor with a particularly low impedance is used as the output smoothing capacitor C2 so as to suppress the output ripple voltage. Select the capacitor according to the purpose of use in each case. !Electrical characteristic curves BP5232-25A CONVERSION EFFICIENCY : (%) 90 80 70 60 50 40 30 20 10 0 0.5 1.0 1.5 2.0 VIN=5.0V VIN=6.0V OUTPUT CURRENT INTO INPUT PIN (A) 5 100 VIN=4.0V 50 PW =1 PW PW=1ms OUTPUT CURRENT : IO (A) 4 =1 00 0m 20 10 5 m s s 3 2 TC=25C Single Pulse 1 2 1 0.1 0 50 AMBIENT TEMPERATURE : Ta (C) 100 0.5 1 57 OUTPUT CURRENT : IO (A) VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) Fig.6 Derating cureve Fig.7 Conversion efficiency Fig.8 Safe operation range BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module BP5232-33A 5 100 CONVERSION EFFICIENCY : (%) 90 80 70 60 50 40 30 20 10 0 0.5 1.0 1.5 2.0 VIN=5.0V VIN=4.0V VIN=6.0V OUTPUT CURRENT INTO INPUT PIN (A) OUTPUT CURRENT : IO (A) 4 50 PW =1 PW PW=1ms 0 =1 00 3 20 10 5 m s m s 2 1 TC=25C Single Pulse 2 1 0.1 0 50 AMBIENT TEMPERATURE : Ta (C) 100 0.5 1 57 OUTPUT CURRENT : IO (A) VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) Fig.9 Derating curve Fig.10 Conversion efficiency Fig.11 Safe operation range BP5233-33A 5 CONVERSION EFFICIENCY : (%) 100 90 80 70 60 50 40 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 VIN=5.0V VIN=4.0V VIN=6.0V OUTPUT CURRENT INTO INPUT PIN (A) OUTPUT CURRENT : IO (A) 4 50 PW =1 PW PW=1ms =1 00 0m 3 20 10 5 m s s 2 1 TC=25C Single Pulse 2 1 0.1 0 50 AMBIENT TEMPERATURE : Ta (C) 100 0.5 1 57 OUTPUT CURRENT : IO (A) VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) Fig.12 Derating curve Fig.13 Conversion efficiency Fig.14 Safe operation range BP5234-33A CONVERSION EFFICIENCY : (%) 90 80 70 VIN=6.0V 60 50 40 30 20 10 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VIN=4.0V VIN=5.0V OUTPUT CURRENT INTO INPUT PIN (A) 5 100 50 PW =1 PW PW=1ms OUTPUT CURRENT : IO (A) 4 =1 00 0m 20 10 5 m s s 3 2 TC=25C Single Pulse 1 2 1 0.1 0 50 AMBIENT TEMPERATURE : Ta (C) 100 0.5 1 57 OUTPUT CURRENT : IO (A) VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) Fig.15 Derating curve Fig.16 Conversion efficiency Fig.17 Safe operation range BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !External dimensions (Units : mm) T T H 41.0 *** 0.50.1 1.30.2 ***** P=2.540.2 0.250.05 L BP5232-25A BP5232-33A BP5233-33A BP5234-34A 28.0 28.0 32.5 38.5 H 19.5 19.5 23.5 23.5 Marked side Marked side T 12.0 12.0 11.0 11.0 |
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