ver.2010/09/03 1 njw4190/njw4191 doubler/invert charge pump ic u . d . ? features z operating voltage range 6v to 15v z output current 55ma z v out programmable z stand-by function z synchronizable to an external clock divide-by-4 counter z thermal shutdown z package outline dmp8, vsp8 doubler charge pump maximum output voltage 30v inverting charge pump maximum output voltage -15v v + gnd on/off high: on low : off level shift fb thermal shut down level shift level shift 1/4 divider clock generator vref clk v out c+ c- v out v + 1 v + gnd on/off high: on low : off fb thermal shut down level shift level shift 1/4 divider clock generator vref clk v out c+ c- v + 1 f v out 1 ? package outline njw4190m njw4190r njw4191m NJW4191R (dmp8) (vsp8)
ver.2010/09/03 2 njw4190/91 advantage and difference with sw.reg. none x x on/off for doubler/ negative for inverting for doubler circuit type vsp8, dmp8 thermal shutdown available over 20ma mlcc:1 f 6v 15v njw4191 dip8, dmp8 vsp8, dmp8 package 6v 20v 6v 15v operating voltage range protection circuit setting output voltage output current capacitor ng available none thermal shutdown up to 20ma over 20ma al:10 f mlcc:1 f competitive 7662 njw4190 njw4190/91 are improved about following matters: mlcc corresponding, output current capability and output voltage adjustment low cost rising cost limited output voltage range wide output voltage range output power is low output power is high ext parts is little required many ext parts emission noise is small to use capacitor emission noise is big to use inductor charge pomp ic sw-reg ic charge pump ic is boost or inverted voltage converter of the small electric power usage with few emission noise. these are suitable for bias voltage source of lcd-panel, ccd, sensor and amplifier. please note that this device is still under the development and therefore the specifications are subject to change.
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