date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 1 features inverts or doubles input supply voltage 92% power efficiency at 100ma 120khz/900khz selectable oscillator fre- quency 4.5 ? output resistance using 3.3 f ceramic caps low voltage battery operation ideal for 3.6v lithium ion battery or 5.0v input high output current ?200ma low profile solution 1.5v inverter startup guaranteed high frequency 200ma charge pump inverter or doubler sp6661 the sp6661 is a cmos dc-dc monolithic voltage converter that can be implemented as a voltage inverter or a positive voltage doubler. as a voltage inverter, a -1.5v to -5.0v output can be converted from a +1.5v to +5.0v input. as a voltage doubler, a +5.0v to +10.0v output can be provided from a +2.5v to +5.0v input. the sp6661 is ideal for both battery-powered and board level voltage conversion applications with a typical operating current of 3ma and a high efficiency (>90%) over most of its load-current range. typical end products for this device are disk drive supplies, operational amplifier and interface power supplies, medical instruments, and hand held and laptop computers. the sp6661 is available in 8-pin nsoic, and soic packages. osc out sp6661 +v in +1.5v to +5.0v c1 1 f to 22 f 5 1 2 7 4 fc c2 1 f to 22 f cap+ cap- gnd 6 8 3 lv inverted negative voltage output +v c3 1 f to 22 f cap+ c3 1 f to 22 f sp6661 osc out +v in +2.5v to +5.0v c1 1 f to 22 f 5 1 2 7 4 fc c2 1 f to 22 f cap- gnd 6 8 3 lv double negative voltage output +v figure 1: voltage inverter figure 2: voltage doubler description now available in lead free packaging pin-compatible high-current upgrade of the icl7660 and 660 industry standard smallest package available for the 660 industry standard ?8 pin msop sp6661 8 pin msop 1 2 3 4 8 7 6 5 typical applications ciricuit
date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 2 absolute maximum ratings these are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. exposure to absolute maximum rating conditions for extended periods of time may affect reliability. power supply voltage (v+ to gnd or gnd to out).............................+5.6v lv input voltages............(out - 0.3v) to (v+ + 0.3v) fc and osc input voltages......the least negative of (out - 0.3v) or (v+ - 5.6v) to (v+ + 0.3v) electrical characteristics out and v+ continuous output current.........200ma output short-circuit duration to gnd (note 1).......1s operating temperature ranges sp6661e_...........................-40?c to +85?c continuous power dissipation (t amb = 70?c) nsoic (derate 5.88mw/?c above +70?c) ...... .471mw soic (derate 4.10mw/?c above +70?c) ....... .330mw operating temperature.......................-40?c to +85?c storage temperature........................-65?c to +150?c lead temperature (soldering 10s)..................+300?c r e t e m a r a p. n i m. p y t. x a ms t i n us n o i t i d n o c s r o t i c a p a c f 2 2 h t i w y c n e u q e r f w o l t a t i u c r i c r e t r e v n i t , d n g = v l , n e p o = c f , f 2 2 = 3 c = 2 c = 1 c , v 0 . 5 + = + v b m a t = n i m t o t x a m ; o t r e f e r 1 e r u g i f 2 e t o n . t i u c r i c t s e t e g n a r e g a t l o v y l p p u s5 . 13 . 5vr l 0 0 5 = ? e g a t l o v p u - t r a t s3 9 . 0v t n e r r u c y l p p u s36a md a o l o n t n e r r u c t u p t u o x a m0 0 2a m t n e r r u c t u p n i r o t a l l i c s o1 ? y c n e u q e r f r o t a l l i c s o0 70 2 10 7 1z h k e c n a t s i s e r t u p t u o57 ? i l 3 e t o n , a m 0 0 1 = y c n e i c i f f e n o i s r e v n o c e g a t l o v0 . 9 99 . 9 9%d a o l o n y c n e i c i f f e r e w o p0 8 0 7 9 8 2 8 % i l a m 0 0 1 = i l a m 0 0 2 = s r o t i c a p a c f 2 2 h t i w y c n e u q e r f w o l t a t i u c r i c r e l b u o d t , d n g = v l , n e p o = c f , f 2 2 = 3 c = 2 c = 1 c , v 0 . 5 + = + v b m a t = n i m t o t x a m ; o t r e f e r 2 2 e r u g i f 2 e t o n . t i u c r i c t s e t e g n a r e g a t l o v y l p p u s5 . 23 . 5vr l k 1 = ? e g a t l o v p u - t r a t s5 . 1v t n e r r u c y l p p u s36a md a o l o n t n e r r u c t u p t u o x a m0 0 2a m t n e r r u c t u p n i r o t a l l i c s o1 ? y c n e u q e r f r o t a l l i c s o0 70 2 10 7 1z h k e c n a t s i s e r t u p t u o5 . 47 ? i l 3 e t o n , a m 0 0 1 = y c n e i c i f f e n o i s r e v n o c e g a t l o v0 . 9 99 . 9 9%d a o l o n y c n e i c i f f e r e w o p9 8 9 7 4 9 0 9 % i l a m 0 0 1 = i l a m 0 0 2 =
date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 3 note 1: specified output resistance is a combination of internal switch resistance and capacitor esr. note 2: in the test circuit capacitors c1, c2 and c3 are 22 f, 0.05 maximum esr, ceramic or 3.3 f, 0.05 ? maximum esr, ceramic. capacitors with higher esr may reduce output voltage and efficiency. refer to capacitor selection section. note 3: specified output resistance is a combination of internal switch resistance and capacitor esr. refer to optimizing capacitor selection. electrical characteristics r e t e m a r a p. n i m. p y t. x a ms t i n us n o i t i d n o c s r o t i c a p a c f 3 . 3 h t i w y c n e u q e r f h g i h t a t i u c r i c r e t r e v n i t , d n g = v l , + v = c f , f 3 . 3 = 3 c = 2 c = 1 c , v 0 . 5 + = + v b m a t = n i m t o t x a m o t r e f e r ; 1 e r u g i f . t i u c r i c t s e t 2 e t o n e g n a r e g a t l o v y l p p u s5 . 13 . 5vr l 0 0 5 = ? e g a t l o v p u - t r a t s3 9 . 0v t n e r r u c y l p p u s0 18 1a md a o l o n t n e r r u c t u p t u o x a m0 0 2a m t n e r r u c t u p n i r o t a l l i c s o8 ? y c n e u q e r f r o t a l l i c s o0 0 50 0 90 5 2 1z h k e c n a t s i s e r t u p t u o57 ? i l 3 e t o n , a m 0 0 1 = y c n e i c i f f e n o i s r e v n o c e g a t l o v0 . 9 96 . 9 9%d a o l o n y c n e i c i f f e r e w o p8 7 5 6 4 8 9 7 % i l a m 0 0 1 = i l a m 0 0 2 = s r o t i c a p a c f 3 . 3 h t i w y c n e u q e r f h g i h t a t i u c r i c r e l b u o d t , d n g = v l , + v = c f , f 3 . 3 = 3 c = 2 c = 1 c , v 0 . 5 + = + v b m a t = n i m t o t x a m o t r e f e r ; 2 e r u g i f . t i u c r i c t s e t 2 e t o n e g n a r e g a t l o v y l p p u s5 . 23 . 5vr l k 1 = ? e g a t l o v p u - t r a t s5 . 1v t n e r r u c y l p p u s0 18 1a md a o l o n t n e r r u c t u p t u o x a m0 0 2a m t n e r r u c t u p n i r o t a l l i c s o8 ? y c n e u q e r f r o t a l l i c s o0 0 50 0 90 5 2 1z h k e c n a t s i s e r t u p t u o5 . 47 ? i l 3 e t o n , a m 0 0 1 = y c n e i c i f f e n o i s r e v n o c e g a t l o v0 . 9 99 . 9 9%d a o l o n y c n e i c i f f e r e w o p7 8 9 7 2 9 9 8 % i l a m 0 0 1 = i l a m 0 0 2 =
date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 4 optimizing capacitor selection refer to figure 1 for the total output resistance for various capacitance values and oscillator frequencies. the reservoir and charge pump capacitor values are equal. the capacitance values required to maintain comparable ripple and output resistance typically diminish proportionately as the pump frequency of the sp6661 increases. t otal output source resistance vs c1, c2 0 2 4 6 8 10 12 14 16 18 20 11 0 100 1000 c1, c2 capacitance (uf) 10khz 20khz 50khz 100khz 200khz 500khz 1000khz figure 1. total output resistance for various capacitance values and oscillator frequen- cies.
date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 5 pin number pin symbol description 1f c frequency control for the internal oscillator. fc = open, f osc = 120khz typical; fc = v+ f osc = 900khz typical. 2 cap+ connect to the positive terminal of the charge pump capacitor. 3 gnd (voltage inverter circuit) ground. 3 gnd (positive voltage doubler circuit) positive supply voltage input. 4 cap- connect to the negative terminal of the charge pump capacitor. 5 out (voltage inverter circuit) negative voltage output pin. 5 out (positive voltage doubler circuit) ground pin for power supply. 6l v low -voltage operation input pin in 660 circuits. in sp6661 circuits can be connected to gnd, out or left open as desired with no effect. 7 osc control pin for the oscillator. internally connected to 15pf capacitor. an external capacitor can be added to slow the oscillator. be careful to minimize stray capacitance. an external oscillator can be connected to overdrive the osc pin. 8v + (voltage inverter circuit) positive voltage input pin for the power supply. 8v + (positive voltage doubler circuit) positive voltage output. pin description
date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 6 0.07 - - l1 l r1 1 r 1 1 seating plane 1 e1 2 e/2 e d gauge plane l2 - - 1.10 0 - 0.15 dimensions in (mm) 8-pin msop jedec mo-187 (aa) variation 0.75 0.85 0.95 0.22 - 0.38 0.08 - 0.23 3.00 bsc 4.90 bsc 3.00 bsc 0.40 0.60 0.80 - 8 - 0.07 - - 0? 8 a a1 a2 b c d e e1 l l1 l2 n r r1 0? - 15 1 min nom max e1 e 1.95 bsc 0.65 bsc pin #1 indentifier must be indicated within this shaded area (d/2 * e1/2) e 0.25 bsc 0.95 ref 8-pin msop a2 a a1 b c with plating base metal (b) e1 b b section b-b package: 8 pin msop
date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 7 1 1.65 to p view see view c 8 pin nsoic dimensions minimum/maximum (mm) 8 pin nsoic (jedec ms-012, aa - variation) common height dimension a a1 a2 b c l e e1 e l2 l1 1.35 4.90 bsc 0.40 0.31 0.51 symbol min nom max 0.10 - 0.25 d 1.75 1.25 0.17 0.25 6.00 bsc 3.90 bsc 1.27 bsc 1.27 1.04 ref 0.25 bsc 0 5 8 15 l1 l 1 1 seating plane gauge plane l2 view c a a2 a1 seating plane side view e e e/2 e1 a index area (d/2 x e1/2) e1/2 d b 1 c with plating base metal b contact area - - - - - - - package: 8 pin nsoic
date: 09/16/04 sp6661 high frequency 200ma charge pump inverter or doubler ?copyright 2004 sipex corporation 8 ordering information part number temperature range package type sp6661en . ............................................ -40?c to +85?c ......................................... 8-pin nsoic sp6661en/tr ........................................ -40?c to +85?c ......................................... 8-pin nsoic sp6661eu . ............................................ -40?c to +85?c .......................................... 8-pin msop sp6661eu/tr ........................................ -40?c to +85?c .......................................... 8-pin msop sp6661eb ..................................................................................... 8-pin msop evaluation board analog excellence sipex corporation headquarters: 233 hillview dr milpitas, ca 95035 tel: (408) 934-7500 fax: (408) 935-7600 sipex corporation reserves the right to make changes to any products described herein. sipex does not assume any liability aris ing out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor t he rights of others. /tr = tape and reel pack quantity is 2,500 for msop & nsoic. available in lead free packaging. to order add "-l" suffix to part number. example: sp6661en/tr = standard; sp6661en-l/tr = lead free
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