XC6351A035MM

Series Charge Pump Voltage Inverter IC NOperating Voltage Range : 1.2V ~ 5.0V NHighly Efficient : 90% NLow Power Consumption : 310µA ( 120kHz ) NCE ( Chip Enable ) function NSOT-26 Package ■Applications GCellular and portable phones GMiniature LCD panels GPalmtop computers, PDAs GVarious battery powered systems ■General Description The XC6351A series are charge pump voltage inverter ICs that have 4 MOSFETs built in. Since highly efficient negative voltages can be generated with only 2 external capacitors connected, GaAs bias power supplies & OpAmp's negative power supplies etc., can be easily accomodated on a standard PCB. A mini-molded, 6 pin, SOT-26 package provides for space saving and makes high density mounting possible. Low power consumption and high efficiency make this series perfect for use with battery operated applications. Since the IC's operations stop when output is shutdown via the CE (chip enable) function, total power consumption reduction is possible in applications which use this IC. ■Features Operating Voltage Range : 1.2V ~ 5.0V Oscillator Frequency : 120kHz : 35kHz ( custom ) Low Supply Current : 310 µA ( TYP ) : 100 µA ( TYP ; 35kHz ) High Efficiency Stand-by Current Ultra Small Package : 90% (typ) ( RL = 2k Ω ) : 2.0 µA (max.) : SOT-26 mini mold 8 ■Typical Performance Characteristic ■Typical Application Circuit VDD VIN CIN + C1 + C+ CGND CE/ VOUT C2 + XC6351A120MR (120kHz) RL Efficiency:EFFI (%) 100 80 60 40 20 0 VIN=3.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) 0 2 4 6 8 10 Output Current:IOUT (mA) 627 XC6351A Series ■Pin Configuration C16 ■Pin Assignment PIN NUMBER １ ２ ３ SYMBOL GND CE/ C1+ VOUT VIN C1FUNCTION Ground Chip Enable (Low Active) External Capacitor +Pin Reverse Output Power Supply External Capacitor -Pin VIN 5 VOUT 4 1 2 3 ４ ５ ６ GND CE/ C1+ SOT-26 (TOP VIEW) ■Product Classification GOrdering Information ＸＣ６３５１Ａ qwert SYMBOL DESCRIPTION 120 035 M R L   Oscillation frequency 120kHz Oscillation frequency 35kHz (custom) Package SOT-26 Embossed Tape Standard feed Embossed Tape Reverse feed qwe r t   8 ■Packaging Information GSOT-26 +0.1 +0.1 0.4 -0.05 （0.5） 0.15 -0.05 0∼0.1 2.8±0.2 1.6 +0.2 -0.1 0.4 （0.95） 1.9±0.2 2.9±0.2 +0.1 -0.05 1.1±0.1 628 0.2min XC6351A Series ■Marking q Represents the product series DESIGNATOR 1 2 3 4 PRODUCT NAME XC6351A＊＊＊M＊ A SOT-26 (TOP VIEW) w, e Represents the Oscillator frequency DESIGNATOR ② 0 1 ③ 3 2 Oscillator frequency 35kHz 120kHz PRODUCT NAME XC6351A035M＊ XC6351A120M＊ r Denotes the production lot number   0 to 9, A to Z repeated(G.I.J.O.Q.W excepted) ■Block Diagram C1+ C1P1 N2 VIN N3 CE/ Chip Enable N4 VOUT Oscillator Buffer 8 Note : GND 1. In operation, the following conditions will be repeated alternately : P1 & N3 ON : N2 & N4 OFF P1 & N3 OFF : N2 & N4 ON 2. In standby mode, P1, N3 & N4 will be ON and N2 will be OFF. The output pin VOUT will be connected to GND. ■Absolute Maximum Ratings PARAMETER VIN input voltage VOUT pin voltage C1+ pin voltage C1- pin voltage CE/ pin voltage OUT pin current Continuous Total Power Dissipation Ambient Operating Temperature Storage Temperature SYMBOL VIN VOUT C1+ C1CE/ IOUT Pd Topr Tstg Ta = 25°C, GND = 0V RATINGS 6 -6 ∼ 0.3 -0.3 ∼ VIN + 0.3 VOUT - 0.3 ∼ 0.3 -0.3 ∼ VIN + 0.3 50 150 −30 ∼＋80 −40 ∼ ＋125 UNITS V V V V V mA mW °C °C 629 XC6351A Series ■Electrical Characteristics FOSC＝120kHz PARAMETER Supply Current Operating Voltage Range Oscillation Frequency Power Transition Efficiency Voltage Transition Efficiency Output Impedence Stand -By Current CE/ 'H' Level Voltage CE/ 'L' Level Voltage SYMBOL IDD VIN FOSC EFFI VEFFI ROUT ISTB VCEH VCEL RL＝2kΩ RL＝∞ RL＝5kΩ CE/＝VIN 0.9 0.25 95 45 90 2.0 RL＝5kΩ 1.2 75 120 90 CONDITIONS MIN TYP 310 MAX 520 5.0 192 Ta＝25°C UNITS CIRCUIT µA V kHz % % Ω µA V V 1 2 1 2 2 2 3 3 3 Measuring Conditions : Unless otherwise stated, VIN = 5.0V, CE/ = 0V ■Typical Application Circuit GStandard Circuit VDD VIN CIN + C1 + C+ CCE/ VOUT GND C2 + RL 8 Peripherals : CIN = 1µF (ceramic capacitor) C1 = C2 = 1µF (ceramic capacitor)* * With the custom 35kHz frequency, C1 = C2 = 3.3 µF ■Directions for use GNotes on Use １．Please use the IC & peripherals within the specified electrical characteristic ranges and ensure that absolute maximum ratings are not exceeded. ２．For C1 & C2, please use a capacitor with as small an ESR value as possible. ３．In order to reduce impedance between the IC's input pin and the power supply, we recommend that a capacitor (CIN) be connected to the input side. ４．If an external power supply is applied to the output pin in order to have VOUT connected to GND during standby, large current flows through the IC are a possibility. Further, do not use a capacitor at C2 that has a large capacitance value. 630 XC6351A Series ■Test Circuits Circuit 1 A waveform measurement VDD C+ CGND CE/ VOUT VIN CIN + Circuit 2 A VDD VIN CIN + C1 + C+ CGND CE/ VOUT C2 + RL V A Circuit 3 A waveform measurement 8 VDD C+ CGND CE/ VOUT CE/ CIN + VIN Peripherals : CIN = 1 µF (ceramic capacitor) C1 = C2 = 1 µF (ceramic capacitor)* * With the custom 35kHz frequency, C1 = C2 = 3.3 µF 631 XC6351A Series ■Typical Performance Characteristics (1) OUTPUT VOLTAGE vs. OUTPUT CURRENT XC6351A120MR (120kHz) VIN=5.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) XC6351A120MR (120kHz) -3.2 VIN=3.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) XC6351A120MR (120kHz) -2.2 VIN=2.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) -5.2 Output Voltage:VOUT(V) Output Voltage:VOUT(V) Output Voltage:VOUT(V) -5.0 -4.8 -4.6 -4.4 -4.2 -3.0 -2.8 -2.6 -2.4 -2.2 -2.0 -1.8 -1.6 -1.4 -1.2 0 2 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10 Output Current:IOUT (mA) Output Current:IOUT (mA) Output Current:IOUT (mA) (2) EFFICIENCY vs. OUTPUT CURRENT XC6351A120MR (120kHz) 100 VIN=5.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) XC6351A120MR (120kHz) 100 VIN=3.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) XC6351A120MR (120kHz) 100 VIN=2.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) Efficiency:EFFI (%) Efficiency:EFFI (%) Efficiency:EFFI (%) 80 60 40 20 0 80 60 40 20 0 80 60 40 20 0 8 Frequency:FOSC (kHz) 0 2 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10 Output Current:IOUT (mA) Output Current:IOUT (mA) Output Current:IOUT (mA) (3) OSCILLATION FREQUENCY vs. AMBIENT TEMPERATURE XC6351A120MR (120kHz) 160 VIN=5.0V,C1=C2=1.0 µF(ceramic) CIN=1.0 µF(ceramic) (4) OSCILLATION FREQUENCY vs. INPUT VOLTAGE XC6351A120MR (120kHz) 160 C1=C2=1.0 µF(ceramic),Topr=25 (°C) CIN=1.0 µF(ceramic) Frequency:FOSC (kHz) -40 -20 0 20 40 60 80 140 140 120 120 100 100 80 80 1 2 3 4 5 Temp.:Topr （℃） Input Voltage:VIN (V) 632