1/9 xc6351a series 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 c onnected, 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 seri es perfect for use with battery operated applications. since the ic's operations stop when output is shutdown via the ce (chip enable) f unction, total power consumption reduction is possible in applications which use this ic. a pplications 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 : 310 a ( typ. ) 100 a (35khz custom typ.) high efficiency : 90% (typ.) ( rl = 2k ) stand-by current : 2.0 a (max.) ce(chip enable) function packages : sot-26 ,usp-6b environmentally friendly : eu rohs compliant, pb free typical performance characteristics etr0801_003
2/9 xc6351a series 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 v out reverse output 5 2 v in power supply 6 1 c1- external capacitor -pin designator description symbol description 120 120khz ?? oscillation frequency 035 35khz (custom) mr sot-26 mr-g sot-26 dr usp-6b ? - packages taping type (*2) dr-g usp-6b pin configuration pin assignment product classification ordering information gnd ce c1+ c1- v in v out *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 ????- (*1) (*1) the ?-g? suffix indicates that the products are hal ogen and antimony free as well as being fully rohs compliant. (*2) the device orientation is fixed in its embossed tape pocket. for reverse orientatio n, please contact your local torex sales office o r representative. (standard orientation: r- , reverse orientation: l- )
3/9 xc6351a series parameter symbol ratings units v in input voltage v in 6.0 v v out pin voltage v out -6 0.3 v c1+ pin voltage c1+ -0.3 v in + 0.3 v c1- pin voltage c1- v out - 0.3 0.3 v ce/ pin voltage ce/ -0.3 v in + 0.3 v i out pin current i out 50 ma sot-26 150 power dissipation usp-6b pd 100 mw operating temperat ure range topr -30 80 storage temperature range tstg -40 125 block diagram a bsolute maximum ratings ta = 2 5 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. note: voltage is all ground standardized. c1+ c1- v in ce/ buffer oscillator chip enable gnd p1 n2 n4 n3 v out
4/9 xc6351a series parameter symbol conditions min. typ. max. units circuit supply current i dd - 310 520 a 1 operating voltage range v in r l 5k 1.2 - 5.0 v 2 oscillation frequency fosc 75 120 192 khz 1 power transition efficiency effi r l 2k - 90 - % 2 voltage transition efficiency v effi r l 95 - - % 2 output impedance r out r l 5k - 45 90 2 stand -by current i stb ce/ v in - - 2.0 a 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, v in = 5.0v, ce/ = 0v typical application circuit standard circuit external components: c in = 1 f (ceramic capacitor) c1 = c2 = 1 f (ceramic capacitor)* * with the custom 35khz frequency, c1 = c2 = 3.3 f 1. please use the ic & external components: within the s pecified electrical characteri stics 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.
5/9 xc6351a series test circuits external components: c in = 1 f (ceramic capacitor) c1 = c2 = 1 f (ceramic capacitor)* * with the custom 35khz frequency, c1 = c2 = 3.3 f
6/9 xc6351a series 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
7/9 xc6351a series packaging information sot-26 usp-6b usp-6b reference pattern layout usp-6b reference metal mask design unit : mm unit : mm
8/9 xc6351a series mark oscillation frequency product series 0 3 35khz xc6351a035mx 1 2 120khz xc6351a120mx mark oscillation frequency product series 0 3 35khz xc6351a035dx 1 2 120khz xc6351a120dx mark product series a xc6351axxxmx mark product series 5 1 a xc6351axxxdx marking rule represents product series , represents oscillation frequency represents production lot number 0 to 9, a to z repeated (g, i, j, o, q, w excluded) , , represents product series , represents oscillation frequency represents production lot number 0 to 9,a to z repeated (g, i, j, o, q, w excluded) note: no character inversion used. sot-26 usp-6b 1 2 3 6 5 4 usp-6b (top view) 123 654 sot-26 (top view)
9/9 xc6351a series 1. the products and product specifications cont ained herein are subject to change without notice to improve performance characteristic s. consult us, or our representatives before use, to confirm that the informat ion in this datasheet is up to date. 2. we assume no responsibility for any infri ngement of patents, pat ent rights, or other rights arising from the use of any information and circuitry in this datasheet. 3. please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this datasheet. 4. the products in this datasheet are not devel oped, designed, or approved for use with such equipment whose failure of malfuncti on can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. atomic energy; aerospace; transpor t; combustion and associated safety equipment thereof.) 5. please use the products listed in this datasheet 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 dat asheet may be copied or reproduced without the prior permission of torex semiconductor ltd.
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