XC6351A Series ETR0801_001 Charge Pump Voltage Inverter IC ■ 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 accommodated on a standard PCB. A mini-molded, 6 pin, SOT-26 and USP-6B packages 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. ■APPLICATIONS ■FEATURES ●Cellular and portable phones Operating Voltage Range : 1.2V ~ 5.0V Oscillation Frequency : 120kHz Low Supply Current : 310μA ( TYP. ) ●Miniature LCD panels ●Palmtop computers, PDAs : 35kHz ( custom ) ●Various battery powered systems 100μA (35kHz custom TYP.) High Efficiency : 90% (TYP.) ( RL = 2kΩ) Stand-by Current : 2.0μA (MAX.) CE(Chip Enable) Function Ultra Small Package ■TYPICAL APPLICATION CIRCUIT : SOT-26 ,USP-6B ■TYPICAL PERFORMANCE CHARACTERISTICS 1/9 XC6351A Series ■PIN CONFIGURATION GND C1- CE VIN *The dissipation pad for the USP-6B package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the VIN pin. VOUT C1+ ■PIN ASSIGNMENT PIN NUMBER SOT-26 USP-6B SYMBOL FUNCTION 1 6 GND Ground 2 5 CE/ Chip Enable (Low Active) 3 4 C1+ External Capacitor +Pin 4 3 VOUT Reverse Output 5 2 VIN Power Supply 6 1 C1- External Capacitor -Pin ■PRODUCT CLASSIFICATION ●Ordering Information XC6351A ①②③④⑤ DESIGNATOR DESCRIPTION ① ② ③ Oscillation Frequency ④ ⑤ 2/9 Package Device Orientation SYMBOL DESCRIPTION 120 : 120kHz 035 : 35kHz (custom) M : SOT-26 D : USP-6B R : Embossed tape, standard feed L : Embossed tape, reverse feed XC6351A Series ■BLOCK DIAGRAM C1+ C1- P1 V IN N2 N3 CE/ N4 Chip Enable Oscillator V OUT Buffer Note: 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. GND ■ABSOLUTE MAXIMUM RATINGS PARAMETER VIN Input Voltage VOUT Pin Voltage C1+ Pin Voltage C1- Pin Voltage CE/ Pin Voltage IOUT Pin Current SOT-26 USP-6B Operating Temperature Range Storage Temperature Range Power Dissipation SYMBOL VIN VOUT C1+ C1CE/ IOUT Pd Topr Tstg RATINGS 6.0 -6～0.3 -0.3～VIN + 0.3 VOUT - 0.3～0.3 -0.3～VIN + 0.3 50 150 100 -30～＋80 -40～＋125 Ta = 25℃ UNITS V V V V V mA mW ℃ ℃ Note: Voltage is all ground standardized. 3/9 XC6351A Series ■ELECTRICAL CHARACTERISTICS FOSC＝120kHz, Ta=25℃ PARAMETER Supply Current SYMBOL IDD Operating Voltage Range VIN Oscillation Frequency FOSC CONDITIONS RL＝5kΩ Power Transition Efficiency EFFI RL＝2kΩ Voltage Transition Efficiency VEFFI RL＝∞ Output Impedance ROUT Stand -by Current ISTB CE/ 'H' Level Voltage CE/ 'L' Level Voltage MIN. - TYP. 310 MAX. 520 UNITS μA CIRCUIT 1 1.2 - 5.0 V 2 75 120 192 kHz 1 - 90 - % 2 95 - - % 2 RL＝5kΩ - 45 90 Ω 2 CE/＝VIN - - 2.0 μA 3 VCEH 0.9 - - V 3 VCEL - - 0.25 V 3 Measuring Conditions: Unless otherwise stated, VIN = 5.0V, CE/ = 0V ■ TYPICAL APPLICATION CIRCUIT ●Standard Circuit External components: CIN = 1μF (ceramic capacitor) C1 = C2 = 1μF (ceramic capacitor)* * With the custom 35kHz frequency, C1 = C2 = 3.3 μF ■ NOTES ON USE 1. Please use the IC & external components: within the specified electrical characteristics range 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. capacitance value. 4/9 Further, do not use a capacitor at C2 that has a large XC6351A Series ■TEST CIRCUITS External components: CIN = 1μF (ceramic capacitor) C1 = C2 = 1μF (ceramic capacitor)* * With the custom 35kHz frequency, C1 = C2 = 3.3μF 5/9 XC6351A Series ■TYPICAL PERFORMANCE CHARACTERISTICS (1) Output Voltage vs. Output Current (2) Efficiency vs. Output Current (3) Oscillation Frequency vs. Ambient Temperature 6/9 (4) Oscillation Frequency vs. Input Voltage XC6351A Series ■PACKAGING INFORMATION ●SOT-26 ●USP-6B 7/9 XC6351A Series ■PACKAGING INFORMATION (Continued) ●USP-6B Recommended Pattern Layout ■MARKING RULE ●USP-6B Recommended Metal Mask Design ① Represents product series ●SOT-26 6 5 4 MARK PRODUCT SERIES A XC6351AxxxMx ②,③ Represents oscillation frequency ① ② 1 ③ ④ 2 MARK 3 SOT-26 (TOP VIEW) ② ③ 0 1 3 2 OSCILLATION FREQUENCY PRODUCT SERIES 35kHz 120kHz XC6351A035Mx XC6351A120Mx ④ Represents production lot number 0 to 9, A to Z repeated (G, I, J, O, Q, W excepted) ①,②,③ Represents product series ●USP-6B MARK ① ② ③ 2 ④ ⑤ ⑥ 1 3 6 5 4 ① ② ③ 5 1 A (TOP VIEW) XC6351AxxxDx ④,⑤ Represents oscillation frequency MARK USP-6B PRODUCT SERIES ④ ⑤ 0 1 3 2 OSCILLATION FREQUENCY PRODUCT SERIES 35kHz 120kHz XC6351A035Dx XC6351A120Dx ⑥ Represents production lot number 0 to 9,A to Z repeated (G, I, J, O, Q, W excepted) Note: No character inversion used. 8/9 XC6351A Series 1. The products and product specifications contained herein are subject to change without notice to improve performance characteristics. Consult us, or our representatives before use, to confirm that the information in this catalog is up to date. 2. We assume no responsibility for any infringement of patents, patent rights, or other rights arising from the use of any information and circuitry in this catalog. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this catalog. 4. The products in this catalog are not developed, designed, or approved for use with such equipment whose failure of malfunction can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. Atomic energy; aerospace; transport; combustion and associated safety equipment thereof.) 5. Please use the products listed in this catalog within the specified ranges. Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. We assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this catalog may be copied or reproduced without the prior permission of Torex Semiconductor Ltd. 9/9