XC6351A_1 TOREX | Alldatasheet

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1087 XC6351A ETR0801_001.doc ◆Operating Voltage Range : 1.2V ~ 5.0V ◆Highly Efficient : 90% ◆Low Power Consumption : 310 μA(120kHz) ◆CE(Chip Enable) Function ◆SOT-26 and USP-6B Packages ■ GENERAL DESCRIPTION The XC6351A series are charge pump voltage inverter ICs that have 4 MOSFETs built in. Si nce 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

  • Cellular and portable phones
  • Miniature LCD panels
  • Palmtop computers, PDAs
  • Various battery powered systems ■TYPICAL APPLICATION CIRCUIT ■FEATURES Operating Voltage Range : 1.2V ~ 5.0V Oscillation Frequency : 120kHz : 35kHz ( custom ) Low Supply Current : 310μA ( TYP. ) : 100 μA (35kHz custom TYP.) High Efficiency : 90% (TYP .) ( RL = 2k Ω) Stand-by Current : 2.0 μA (MAX.) Ultra Small Package : SOT-26 ,USP-6B ■TYPICAL PERFORMANCE CHARACTERISTICS

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 V OUT Reverse Output 5 2 V IN Power Supply 6 1 C1- External Capacitor -Pin DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION 120 : 120kHz ① ② ③ Oscillation Frequency 035 : 35kHz (custom) M : SOT-26 ④ Package D : USP-6B R : Embossed tape, standard feed ⑤ Device Orientation L : Embossed tape, reverse feed ■PIN CONFIGURATION ■PIN ASSIGNMENT ■PRODUCT CLASSIFICATION

  • Ordering Information GND CE C1+ C1- VIN VOUT *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 V IN pin. XC6351A ①②③④⑤

■PACKAGING INFORMATION

  • SOT-26
  • USP-6B

② ③ OSCILLATION FREQUENCY PRODUCT SERIES 0 3 35kHz XC6351A035Mx 1 2 120kHz XC6351A120Mx MARK ④ ⑤ OSCILLATION FREQUENCY PRODUCT SERIES 0 3 35kHz XC6351A035Dx 1 2 120kHz XC6351A120Dx MARK PRODUCT SERIES A XC6351AxxxMx MARK ① ② ③ PRODUCT SERIES 5 1 A XC6351AxxxDx PARAMETER SYMBOL RATINGS UNITS VIN Input Voltage V IN 6.0 V VOUT Pin Voltage V OUT -6～0.3 V C1+ Pin Voltage C1+ -0.3～VIN + 0.3 V C1- Pin Voltage C1- VOUT - 0.3～0.3 V CE/ Pin Voltage CE/ -0.3～VIN + 0.3 V IOUT Pin Current I OUT 50 mA SOT-26 150 Power Dissipation USP-6B Pd 100 mW Operating Temperature Range Topr -30～＋80 ℃ Storage Temperature Range Tstg -40～＋125 ℃ ■BLOCK DIAGRAM ■ABSOLUTE MAXIMUM RATINGS Ta = 25℃ ■MARKING RULE ① Represents product series ②,③ Represents oscillation frequency 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 ④,⑤ Represents oscillation frequency ⑥ Represents production lot number 0 to 9,A to Z repeated (G, I, J, O, Q, W excepted) Note: No character inversion used. 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 V OUT will be connected to GND.

  • SOT-26
  • USP-6B Note: Voltage is all ground standardized. ⑤⑥ ④ ②③ ①1 USP-6B (TOP VIEW) C1+ C1- VIN CE/ BufferOscillator Chip Enable GND P1 N2 N4N3 VOUT ① ② ③ ④ 123 654 SOT-26 (TOP VIEW)

PARAMETER SYMBOL CONDITIONS MIN. TYP . MAX. UNITS CIRCUIT Supply Current I DD - 310 520 μA 1 Operating Voltage Range V IN RL＝5kΩ 1.2 - 5.0 V 2 Oscillation Frequency FOSC 75 120 192 kHz 1 Power Transition Efficiency EFFI RL＝2kΩ - 90 - % 2 Voltage Transition Efficiency V EFFI RL＝∞ 95 - - % 2 Output Impedance R OUT RL＝5kΩ - 45 90 Ω 2 Stand -by Current I STB CE/＝VIN - - 2.0 μA 3 CE/ 'H' Level Voltage V CEH 0.9 - - V 3 CE/ 'L' Level Voltage V CEL - - 0.25 V 3 ■ NOTES ON USE ■ELECTRICAL CHARACTERISTICS FOSC＝120kHz, Ta=25℃ 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 1. Please use the IC & external components: within the specified electrical characte ristics 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 (C IN) be connected to the input side. 4. If an external power supply is applied to the output pin in order to have V OUT connected to GND during standby, large current flows through the IC are a possibility. Further, do not use a capacito r at C2 that has a large capacitance value.

■TEST CIRCUITS External components: CIN = 1μF (ceramic capacitor) C1 = C2 = 1μF (ceramic capacitor)* * With the custom 35kHz frequency, C1 = C2 = 3.3μF

■TYPICAL PERFORMANCE CHARACTERISTICS (1) Output Voltage vs. Output Current (2) Efficiency vs. Output Current (3) Oscillation Frequency vs. Ambient Temperature (4) Oscillation Frequency vs. Input Voltage