CP2160 v1.0 product brief led driver series 6 channel, 1x/1.5x common cathode adaptive charge pump parallel led driver with 1-wire pulse counting dimming control copyright ? 2007 chiphomer technology limited 1 general description the CP2160, a 1x/1.5x common cathode adaptive charge pump parallel led driver, is ideally suited for all applications powered by a single li-ion battery cell with input voltage varying between 2.7v to 5.5v. the CP2160 provides up to 25ma led current per channel, set by an internal resistor. high efficien cy is achieved by utilizing a 1x/1.5x adaptive fractional conversion techni que based on the supply voltage and the output voltage. the unique auto-mirror tm technology is introduced in CP2160, which can guarantee a constant led current in various operating conditions. the CP2160 uses the 1-wire pulse counting technique to adjust the br ightness of leds, with the pulse signal on the en/set pin, the led current varies according to 32 steps logarithmic scale. only two 1f i nput/output capacitors and two 1f pump capacitors are needed for proper operation. the superior architecture ensures low inrush current and low emi. the CP2160 adopts qfn 3*3 16l package. features y drives up to 6 leds at 25ma each channel y 1-wire pulse counting dimmi ng: 32 steps logarithmic scale y led current matching: 1% (typical) y high efficiency by adaptive mode se lection between 1x and 1.5x modes y thermal shutdown protection and over-current protection y low input ripple and low emi y fixed 1mhz switching frequency y supply voltage range: 2.7~5.5v y ultra-small 3mm *3mm qfn package y shutdown current less than 0.1a y rohs compliant and 100% lead(pb)-free applications y mobile phones y digital still camera y mp3 players y pda 3mm*3mm qfn 16l -40 85
CP2160 v1.0 product brief led driver series 6 channel, 1x/1.5x common cathode adaptive charge pump parallel led driver with 1-wire pulse counting dimming control copyright ? 2007 chiphomer technology limited 2 pin configuration typical application circuit CP2160 c2n c1n c1p c2p 1 f vin 1 f cin d1 d2 d3 d4 vout agnd pgnd c2 c1 li-ion battery + - cout d5 en 1-wire pulse counting dimming d6 1 f 1 f contact with chiphomer 4f, building d, 1618 yishan road shanghai, 201103, p.r.c. tel: (86)21-64014543 64058488 fax: (86)21-64050030 sale: sales@chiphomer.com technical support: support@chiphomer.com web site: www.chiphomer.com shenzhen office: 10d, building 2, dushi yangguang garden chegongmiao, futian district, shenzhen, 518048, p.r.c. tel: (86)755-82046706 82047789 fax: (86)755-8204670
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