VOLTAGE CONVERTER. :+3.0V to +10V(for Twofold voltage converter) High-efficiency voltage conversion rate :99.9%(No load, Negative voltage converter)

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1 VOLTAGE CONVERTER GENERAL DESCRIPTION is a CMOS switched capacitor, voltage converter designed to be an Improved direct replacement of popular 7/1. provides several voltage conversion functions. The application circuit of negative voltage (V OUT = V IN ) converter requires only two capacitors, and positive twofold voltage(v OUT =V IN ) converter requires two capacitors and two diodes as external components. PACKAGE OUTLINE M V FEATURES Full Compatible with NJU7 Correspond to MLCC and electrolytic capacitor Twofold positive Output Polarityconverted Negative voltage Output Operating voltage range :1.5V to 1V(for Negative voltage converter) :3.V to 1V(for Twofold voltage converter) Highefficiency voltage conversion rate :99.9%(No load, Negative voltage converter) Few external components : capacitors(negative voltage converter) : capacitors, diode(twofold voltage converter) Package Outline :DMP, SSOP CMOS Technology PIN CONFIGURATION M V PIN FUNCTION 1. N.C. :Non Connection. C :Charge pump Capacitor() Connecting pin 3. GND :Ground pin. C :Charge pump Capacitor() Connecting pin 5. V OUT :Voltage Output pin. :Voltage Regulator Control pin 7. OSC :Oscillation Capacitor Connecting pin. V :Power Supply pin PRODUCT CLASSIFICATION Device Name Oscillation Output Operating Frequency Resistance Current C1/C capacitor Status 5kHz typ. 55 typ. A typ. 1 F M.P NJU7B khz typ. 3 typ. A typ. 1 F PLAN Ver.15 1

2 BLOCK DIAGRAM V Oscillator Voltage Level Converter C C Q V OUT Power Source Q 1 Q Q 3 Logic Circuit OSC GND ABSOLUTE MAXIMUM RATINGS (Ta=5 C) PARAMETER SYNBOL RATINGS UNIT Supply Voltage V 1.5 V OSC Pin Voltage V OSC.3 ~ V < 5.5 (V 5.5) ~ V > 5.5 V Pin Voltage V VR.3 ~ V < 5.5 (V 5.5) ~ V > 5.5 V Pin Current (*3) I VR A Output Short V < 5.5 Power Dissipation P D DMP 7(*1) (*) SSOP 1(*1) 51(*) mw Junction Temperature Range Tj ~ 15 C Operating Temperature Range Topr ~ 5 C Storage Temperature Range Tstg ~ 15 C (*1): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard, Layers) (*): Mounted on glass epoxy board. ( mm:based on EIA/JDEC standard, Layers,internal Cu area: 7. 7.mm) (*3): Connecting any input terminal to voltages greater than V or less than GND may cause destructive latchup. It is recommended that no inputs from sources operating from external supplies be applied prior to powerup of the INPUT VOLTAGE RANGE V =1.5V to 1V (for Negative Voltage Converter) V =3.V to 1V (for Twofold Voltage Converter) Ver.15

3 ELECTRICAL CHARACTERISTICS (Unless otherwise noted, V =5.V, C OSC =, Ta=5 C PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Operating Current I R L = 13 A Operating Voltage 1 V H1 =OPEN 3..5 V R (Without Dx) L =1k V L1 =GND V Operating Voltage V H =OPEN 3. 1 V R (With Dx) L =1k V L =GND V Output Resistance Ro I OUT =ma 55 1 V =V, I OUT =3mA, =GND 3 Oscillation Frequency Fo 5 khz Power Conversion Rate P EF R L =5k 9 9 % Voltage Conversion Rate V EF R L = % Oscillation Circuit Impedance Zosc (*): The twofold voltage converter operates over 3.V V =V 1. V =5V.1 M Ver.15 3

4 POWER DISSIPATION vs. AMBIENT TEMPERATURE M Pow erdissipation (Topr=~5 C,Tj=15 C) Power Dissipation P D (mw) on layers board on layers board Temperature : Ta( C) V PowerDissipation (Topr=~5 C,Tj=15 C) Power Dissipation P D (mw) on layers board on layers board Temperature : Ta( C) Ver.15

5 TEST CIRCUIT The measurement circuit diagram of negative voltage is shown below. pin must connect to GND or Open according to the operating voltage as follows: V < 3.5V :Connected to GND V 3.5V :OPEN The oscillation frequency can be lowered by connected external capacitor to the OSC pin, furthermore it can be also driven by external clock generator. TYPICAL APPLICATION NC C C1 GND 1 F V 1 F OSC C (*5):Connect the diode as the VOUT pin in the figure above in 1 F the case of V is.5v or more. In the case of lee than.5v, V does not require this diode. C V OUT (*5) V IN=1.5V~1V C3 C OSC R L V OUT= V IN (11)Negative Voltage Output 1 (1)Negative Voltage Output 1.5V to 3.5V operation 3.5V to 1V operation V IN =1.5V~3.5V V IN =3.5V~1.V C1 1 F 1 N.C C 3 GND V OSC 7 C V OUT 5 C3 1 F V OUT =V IN C 1 F C1 1 F 1 N.C C 3 GND V OSC 7 C V OUT 5 C3 1 F ( ) V OUT =V IN C 1 F *ItsCanalsobeusedcerami capacitor.(c1,c,c3) *Capacitance of C3 isequal to C1,Cor more. *Canalsobeused ceramiccapacitor.(c1,c,c3) *Capacitance ofc3is equalto C1,Cormore. (*): pin must connect to GND or Open according to the operating voltage as follows: V < 3.5V :Connected to GND V 3.5V :OPEN (*7): In case of the operation voltage is.5v or more, a Diode must be connected to V OUT pin. If it is less than.5v, the Diode is not required ()Twofold positive Voltage Output 1 N.C C 3 GND V OSC 7 C V OUT 5 C3 1 F V IN =3.V~1V D 1 D C1 1 F V OUT=V INV F *V F:Forward voltage of the diode. C 1 F *Can als o be sed u ramic ce capaci tor.(c 1,C,C 3) *Ca pacitance ofc3 isequalto C1,C ormore. Ver.15 5

6 (3)Cascade Connection (Negative Voltage Output) V IN 1 C1 1 F 1 N.C C3 C1 1 N.C 1 F C OSC 1 F 7 C OSC 7 (1) (n) 3 GND 3 GND C V V OUT 5 ( ) C V OUT 5 ( ) C 1 F V C3 1 F 1 V OUT = n V IN V OUT = (n1) V IN C 1 F V OUT *Can also be usedceramiccapacitor.(c1,c,c3) *Capacitance of C3 is equal to C1,C ormore. (*): pin must connect to GND or Open according to the operating voltage as follows: V < 3.5V :Connected to GND V 3.5V :OPEN (*9): In case of the operation voltage is.5v or more, a Diode must be connected to V OUT pin. If it is less than.5v, the Diode is not required (*1): In case of the cascade connection (Negative Voltage Output), pins (after second IC s) must connect as follows, according to V GND Voltage. V GND< 3.5V :Connected to GND V GND 3.5V :OPEN (*11): Output resistance becomes total of the Ro of every Ver.15

7 TYIPICAL CHARACETRISTICS (Common) Operating Current:I (μa) Operating Current vs.operating Voltage R L = Operating Current:I (μa) L = Operating Current vs.temperature V=3.5V V=5.V V=1.V Operating Volatge:V (V) Output Resistance:Ro(ohm) Output Resistance vs.operating Voltage I OUT =ma =OPEN Output Resistanse:Ro(ohm) Output Resistanse OUT =ma =OPEN V=3.5V V=5.V V=.5V Operating Voltage:V (V) Oscillation Frequency:Fo(kHz) Oscillation Frequency vs.external Capacitor V =5.V External Capacitor:C(pF) Ver.15 7

8 TYIPICAL CHARACETRISTICS (Negative Circuit) Power Conversion Rate:P EF (%) Power Conversion Rate/Operating Current vs.output Current Power Conversion Rate Operating Current V =5.V Negative Circuit Operating Current:I (ma) Output Volatge:V OUT (V) Output Volatge vs.operating Voltage I OUT =ma Negative Circuit Output Current:I OUT (ma) Operating Voltage:V (V) Voltage Conversion Rate vs.operating Voltage 1 Output Voltage vs.output Current Voltage Conversion Rate:V EF (%) R L = Negative Circuit Operating Voltage:V (V) Output Voltage:V OUT (V) V =5.V Negative circuit Output Current:I OUT (ma) Power Conversion Rate:P EF (%) Power Conversion Rate OUT =ma Negative Circuit V=3.5V V=5.V V=.5V Output Voltage:V OUT (V) Output Voltage OUT =ma Negative Circuit V=3.5V V=5.V V=.5V Ver.15

9 TYIPICAL CHARACETRISTICS (Twofold Circuit) Power Conversion Rate:P EF (%) Power Conversion Rate/Operating Current vs.output Current Power Conversion Rate Operating Current V =5.V Twofold Circuit Operating Current:I (ma) Output Voltage:V OUT (V) Output Voltage vs.operating Voltage I OUT =ma Twofold Cirsuit Output Current:I OUT (ma) Operating Voltage:V (V) Voltage Conversion Rate vs.operating Voltage 1 Output Voltage vs.output Current Voltage Conversion Rate:V EF (%) R L = Twofold Cirsuit Output Voltage:V OUT (V) V =5.V Twofold circuit Operating Voltage:V (V) Output Current:I OUT (ma) 1 Power Conversion Rate vs.temperature Output Voltage vs.temperature Power Conversion Rate:P EF (%) OUT =ma Twofold Cirsuit V=3.5V V=5.V V=1.V Output Voltage:V OUT (V) OUT =ma Twofold Cirsuit V=3.5V V=5.V V=1.V Ver.15 9

10 [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. 1 Ver.15