NJW4191 Series

Inverting Charge Pump IC

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Description

The NJW4191 is an 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, it 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 liquid crystal panels, CCD, sensors and operational amplifiers. There is the NJW4190 for doubler voltage output application.

Spec

	Consumer
Operating Current	Max. 1.22 mA
Operating voltage range	4.7V to 17V
Output Resistance	Max. 34 Ω
Structure	Bi-CMOS Technology
Wide Operating Temperature	-40℃ to +85℃
Junction Temp.	+150℃
Package	MSOP8(VSP8),DMP8
Inverted Output	Max. -17V
Maximum Output Current	Max. 55mA
Built-in Oscillation Circuit	Typ. 300kHz
External Synchronization Function	divide-by-4 counter(A ver.)
Note	Correspond to Ceramic Capacitor(MLCC) VOUT Programmable ON/OFF Function Thermal Shutdown
Note(2)	Function Compatible to NJU7660/NJU7662 Doubler Circuit (The NJW4190 is not pin compatible to NJU7660/62.)

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Quality &
Packages

Product Name	Compatibility	Package	Marking	Reliability
NJW4191R		MSOP8(VSP8)	-	NJW-1-s-fr
NJW4191M		DMP8	-	NJW-1-s-fr

Refer to the datasheets for the details on the product.
The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.