Inverting Charge Pump IC

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJW4191 is the inverting charge pump IC that operates wide 4.7V to 17V input range. With only the external part of an input/output capacitor and a charge pump capacitor, can compose the inverting voltage circuit. It has a high current capability and a corresponding to small-sized capacitor compared with conventional product such as popular 7660/7662.For usability, it has ON/OFF function, Output Voltage Adjustable function and external synchronous function. The NJW4191 is suitable for the bias voltage of a liquid crystal panels, CCD, sensors and operational amplifiers. There is the NJW4190 for doubler voltage output application.

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  • Inverted Output (-17V max.)
  • Wide Operating Voltage Range (4.7V to 17V)
  • Maximum Output Current (55mA max.)
  • Correspond to Ceramic Capacitor(MLCC)
  • VOUT Programmable
  • ON/OFF Function
  • Built-in Oscillation Circuit (300kHz typ.)
  • External Synchronization Function divide-by-4 counter (A ver.)
  • Thermal Shutdown
  • Function Compatible to NJU7660/NJU7662 Doubler Circuit
  • Package Outline (NJW4191R:MSOP8(VSP8) NJW4191M:DMP8)
  • The NJW4191 is not pin compatible to NJU7660/62.
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Typ. Quiescent Current (µA) 0.94  

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Input Voltage Range (V) 4.7 to 17  
Device Type Inverting  
Operating Temperature (°C) -40 to + 85  
Package DMP-8