NJW4191

NJW4191 Inverting Charge Pump IC GENERAL 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. PACKAGE OUTLINE NJW4191R NJW4191M FEATURES 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 Inverting Circuit* Package Outline NJW4191R : MSOP8 (VSP8)** NJW4191M : DMP8 * The NJW4191 is not pin compatible to NJU7660/62. ** MEET JEDEC MO-187-DA PIN CONFIGURATION 1 2 3 4 NJW4191R NJW4191M PIN FUNCTION 8 1. FB 7 2. C+ 3. GND 6 4. C5. VOUT 5 6. ON/OFF 7. CLK 8. V+ Ver.2015-07-28 -1- NJW4191 BLOCK DIAGRAM ON/OFF High: ON Low : OFF Thermal Shut Down CLK Clock Generator Divider Int....