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 : 200µA 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=25°C) Parameter Symbol Input voltage VIN Output current IO Limits BP5232-25A BP5232-33A BP5233-33A BP5234-33A V 7 2∗ Unit 2∗ 3∗ 4∗ A Operating temperature Topr −20 ~ +55 °C Storage temperature Tstg −25 ~ +80 °C ∗ Derating required according to the input voltage and ambient temperature.. !Recommended operating conditions (Ta=25°C) Parameter Input voltage Symbol Min. Typ. Max. Unit VIN 4.5 5.0 5.5 V BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !Block diagram BP5233-33A / BP5234-33A 2 10 3 VO VIN=5V + + 1000µF 9 470µF + 1000µF VIN=5V 9 2 10 3 VO + 470µF BP5232-25A / BP5232-33A 11 1 Control circuit 1 Control circuit 7 7 CTL signal ON / OFF CTL signal ON / OFF 6 5 4 6 5 4 !Pin descriptions BP5233-33A , BP5234-33A BP5232-25A , 5232-33A Pin No. Pin description Pin No. Pin No. Pin description 1 Feed back 6 GND 1 2 VOUT1 7 CTL 3 VOUT2 9 4 GND 10 5 GND Pin description Pin No. Pin description Feed back 6 2 VOUT1 7 CTL VIN1 3 VOUT2 9 VIN1 VIN2 4 GND 10 VIN2 5 GND 11 VIN3 Pin 8 is removed. GND Pin 8 is removed. !Electrical characteristics BP5232-25A (Unless otherwise noted, VlN=5V, IO=1A, SW=1, Ta=25°C) Parameter Symbol Min. Input voltage VIN 4.5 5 5.5 V Output voltage VO 2.4 2.5 2.6 V Output current IO − − 2 A IIN − 200 300 µA ∆VO − 13 33 mV Current consuption at no load Load regulation Typ. Max. Unit Output ripple voltage υγ − 33 150 mVPP Power conversion efficiency η 84 89 − % VON 1.8 − − CTL pin ON voltage CTL pin OFF voltage VOFF 0.3 − − (Alternatively, when OPEN) ∗1 Derating required according to the input voltage and ambient temperature. ∗2 Pulse noise not included. Conditions Fig.1 Fig.1 ∗1 Fig.1 Fig.1 IO=0.1A~2A Fig.1 ∗2 Fig.1 Fig.1 V V Measurement circuit Fig.1 SW=2 Fig.1 BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module BP5232-33A (Unless otherwise noted, VlN=5V, IO=1A, SW=1, Ta=25°C) Symbol Min. Typ. Max. Unit Input voltage Parameter VIN 4.5 5 5.5 V Output voltage VO 3.17 3.3 3.43 V Output current IO − − 2 A Current consuption at no load IIN − 200 300 µA ∆VO − 16 42 mV υγ − 33 150 mVPP η 88 93 − % Fig.1 VON 1.8 − − V Fig.1 Load regulation Output ripple voltage Power conversion efficiency CTL pin ON voltage CTL pin OFF voltage VOFF 0.3 − − (Alternatively, when OPEN) V Conditions Measurement circuit Fig.1 Fig.1 ∗1 Fig.1 Fig.1 IO=0.1A~2A Fig.1 ∗2 Fig.1 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=25°C) Parameter Symbol Min. Typ. Max. Unit Input voltage VIN 4.5 5 5.5 V Output voltage VO 3.17 3.3 3.43 V Output current IO − − 3 A IIN − 200 300 µA ∆VO − 16 42 mV Output ripple voltage υγ − 33 150 mVPP Power conversion efficiency η 88 93 − % VON 1.8 − − Current consuption at no load Load regulation CTL pin ON voltage CTL pin OFF voltage VOFF 0.3 − − (Alternatively, when OPEN) Conditions Fig.2 Fig.2 ∗1 Fig.2 Fig.2 IO=0.1A~3A Fig.2 ∗2 Fig.2 Fig.2 V V Measurement circuit Fig.2 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=25°C) Symbol Min. Typ. Max. Unit Input voltage Parameter VIN 4.5 5 5.5 V Fig.2 Output voltage VO 3.17 3.3 3.43 V Fig.2 Output current IO − − 4 A Current consuption at no load IIN − 200 300 µA ∆VO − 16 42 mV υγ − 33 150 mVPP η 88 93 − % Fig.2 VON 1.8 − − V Fig.2 Load regulation Output ripple voltage Power conversion efficiency CTL pin ON voltage CTL pin OFF voltage VOFF 0.3 − − (Alternatively, when OPEN) ∗1 Derating required according to the input voltage and ambient temperature. ∗2 Pulse noise not included. V Conditions ∗1 Measurement circuit Fig.2 Fig.2 IO=0.1A~4A Fig.2 ∗2 Fig.2 SW=2 Fig.2 BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !Measurement circuit BP5232-25A / BP5232-33A 10 7 6 5 4 3 2 1 2 0.47µF + A V f C3 + C2 C1 V VO 1 470µF / 50V SW 1000µF / 50V A 9 VIN ∗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. f : frequency counter C1, C2 : Low impedance type C3 : film 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 9 7 6 5 4 3 2 1 2 0.47µF + A V f C3 + 470µF / 50V C2 V VO 1 1000µF / 50V SW C1 A 10 VIN ∗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. : frequency counter f C1, C2 : Low impedance type C3 : film 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 BP5233-33A / BP5234-33A 2 1 VO VIN 11 + 470µF + 1000µF 10 9 7 6 5 4 3 2 1 VO + 470µF + 1000µF Fig.3 Output ON / OFF control BP5232-25A / BP5232-33A 10 9 7 6 5 4 3 BP5233-33A / BP5234-33A 2 1 11 VIN 10 9 7 6 5 4 3 2 1 VIN VO VO SW SW + 1000µF + 1000µF + 470µF + 470µF Fig.4 !Application example Output voltage fine adjustment BP5232-25A / BP5232-33A VIN 10 9 7 6 5 4 3 BP5233-33A / BP5234-33A 2 SW 1 VO' 470µF + 9 7 6 5 4 3 2 1 VO' R1 VO R2 VO' value setting equations R1 VO'=VO 1+ R1+R2 ≤ 50kΩ R 2 10 + 1000µF VO R2 ( 11 SW R1 + 1000µF VIN ) 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 0 OUTPUT CURRENT : IO (A) CONVERSION EFFICIENCY : η (%) 50 AMBIENT TEMPERATURE : Ta (˚C) Fig.6 Derating cureve 100 VIN=6.0V 70 60 50 40 30 20 10 0 0.5 1.0 1.5 OUTPUT CURRENT : IO (A) Fig.7 Conversion efficiency 2.0 PW=1ms 50 PW =1 00 m s 20 s 1 VIN=5.0V 0m 2 80 =1 3 90 PW 4 VIN=4.0V OUTPUT CURRENT INTO INPUT PIN (A) 100 5 10 5 TC=25°C Single Pulse 2 1 0.1 0.5 1 5 7 VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) Fig.8 Safe operation range BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module BP5232-33A 2 1 0 50 100 90 80 VIN=5.0V VIN=4.0V VIN=6.0V 70 60 50 40 30 20 10 0 0.5 AMBIENT TEMPERATURE : Ta (˚C) 1.0 1.5 2.0 PW =1 00 m s 20 10 5 TC=25°C Single Pulse 2 1 0.1 0.5 1 5 7 VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) OUTPUT CURRENT : IO (A) Fig.9 Derating curve PW=1ms 50 s m 3 OUTPUT CURRENT INTO INPUT PIN (A) 4 0 =1 CONVERSION EFFICIENCY : η (%) 100 PW OUTPUT CURRENT : IO (A) 5 Fig.10 Conversion efficiency Fig.11 Safe operation range BP5233-33A CONVERSION EFFICIENCY : η (%) 0 50 50 40 30 20 10 0 100 VIN=4.0V 60 0.5 AMBIENT TEMPERATURE : Ta (˚C) 1.0 1.5 2.0 2.5 3.0 PW =1 00 m s 20 10 5 TC=25°C Single Pulse 2 1 0.1 0.5 1 5 7 VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) OUTPUT CURRENT : IO (A) Fig.12 Derating curve PW=1ms 50 s 1 70 VIN=6.0V 0m 2 VIN=5.0V 80 =1 3 90 PW OUTPUT CURRENT : IO (A) 4 OUTPUT CURRENT INTO INPUT PIN (A) 100 5 Fig.13 Conversion efficiency Fig.14 Safe operation range BP5234-33A 0 OUTPUT CURRENT : IO (A) CONVERSION EFFICIENCY : η (%) 50 100 VIN=5.0V 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 AMBIENT TEMPERATURE : Ta (˚C) OUTPUT CURRENT : IO (A) Fig.15 Derating curve Fig.16 Conversion efficiency PW=1ms 50 PW =1 00 m s 20 s 1 VIN=4.0V 0m 2 80 =1 3 90 PW 4 OUTPUT CURRENT INTO INPUT PIN (A) 100 5 10 5 TC=25°C Single Pulse 2 1 0.1 0.5 1 5 7 VOLTAGE BETWEEN INPUT PIN TO OUTPUT PIN (V) Fig.17 Safe operation range BP5232-25A / BP5232-33A / BP5233-33A / BP5234-33A Power Module !External dimensions (Units : mm) T T Marked side Marked side H 4±1.0 • • • • • • • • 0.5±0.1 1.3±0.2 P=2.54±0.2 0.25±0.05 L H T BP5232-25A 28.0 19.5 12.0 BP5232-33A 28.0 19.5 12.0 BP5233-33A 32.5 23.5 11.0 BP5234-34A 38.5 23.5 11.0