NJW4191 Inverting Charge Pump IC GENERAL DESCRIPTION PACKAGE OUTLINE 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. 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 8 2 7 3 6 4 5 NJW4191R NJW4191M Ver.2013-02-12 PIN FUNCTION 1. FB 2. C+ 3. GND 4. C5. VOUT 6. ON/OFF 7. CLK 8. V+ -1- NJW4191 BLOCK DIAGRAM ON/OFF + V High: ON Low : OFF Level Shift Thermal Shut Down C+ GND Clock Generator Divider Int. CLK: 1/2 Ext. CLK: 1/4 Level Shift CVOUT CLK FB Vref 1.28V PRODUCT CLASSIFICATION PART NUMBER NJW4191R-A NJW4191M-A Divider External CLK: 1/4 ABSOLUTE MAXIMUM RATINGS PARAMETER SYNBOL Input Voltage V+ FB pin Voltage VFB ON/OFF pin Voltage VON/OFF CLK pin Voltage VCLK Maximum Output Current IOUT Power Dissipation PD Operating Temperature Storage Temperature Topr Tstg (Ta=25°C) UNIT V V V V mA MAXIMUM RATINGS +20 +6 -⏐VOUT⏐ -0.3 to +6 -0.3 to +6 55 MSOP8 (VSP8) : 595 (*1) DMP8 : 530 (*1) -40 to +85 -40 to +150 mW °C °C (*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:EIA/JDEC standard size, 2Layers) RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN. Supply Voltage V+ 4.7 External CLK Input Range fCLK 300 A version (*2) External CLK Duty Input Range DUTY 45 TYP. – MAX. 17 UNIT V – 2,000 kHz % (*2): The oscillation frequency is output from the VOUT pin that external clock input frequency divided by four (4). -2- – 80 Ver.2013-02-12 NJW4191 ELECTRICAL CHARACTERISTICS (Unless otherwise noted, V+= 10V, VON/OFF= 5V, VFB= VOUT, VCLK=GND, C1=C2=C3=1µF, Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT RL=500Ω RL=no Load – – – – 87 97 940 330 25 300 91 99.9 1,220 450 34 – – – µA µA Ω kHz % % General Characteristics Supply Current Output Resistance Oscillation Frequency Power Efficiency Voltage Conversion Efficiency IDD1 IDD2 RO fOSC PEF VEF VON/OFF=5V, RL=no Load VON/OFF=GND IOUT=20mA ON/OFF Block ON Control Voltage OFF Control Voltage ON/OFF pin Current VON VOFF ION/OFF VON/OFF= L → H VON/OFF= H → L VON/OFF=1.7V 1.7 0 – – – 3.5 5.5 0.3 7 V V µA FB Block Detection Voltage FB pin Sink Current VT IFB VFB= L → H VFB=5.5 - |VOUT| -10% – 1.28 0.01 +10% 1 V µA 2.4 0 – – – 6 5.5 0.7 10 V V µA CLK Block CLK Threshold (High) CLK Threshold (Low) CLK pin Sink Current Ver.2013-02-12 VCLK_H VCLK_L ICLK VCLK=5.5V -3- NJW4191 TYPICAL APPLICATION 1 FB V + 8 2 C+ CLK 7 3 GND 4 C- + V C1 C2 NJW4191 ON/OFF 6 VOUT 5 VOUT ON/OFF High: ON Low: OFF CLK R2 C3 R1 -4- Ver.2013-02-12 NJW4191 CHARACTERISTICS Power Efficiency vs. Output Current (V =10V, C1=C2=C3=1µF, Ta=25 C) (V) 0 -2 0 10 20 30 40 50 Output Current I OUT (mA) -4 -6 -8 -10 60 + (Ω) O Output Resistance R (V =10V, C1=C2=C3=1µF, I =20mA) OUT 40 30 20 10 0 -50 -25 0 25 50 75 100 125 150 o Ambient Temperature Ta ( C) 0 10 20 30 40 50 Output Current I OUT (mA) 60 Oscillation Frequency vs. Temperature Oscillation Frequency fosc (kHz) Output Resistance vs. Temperature 50 (V+=10V, C1=C2=C3=1µF, Ta=25oC) OUT 100 90 80 70 60 50 40 30 20 10 0 Output voltage vs. Output Current o Output Voltage V Power Efficiency PEF (%) + 360 (V+=10V, C1=C2=C3=1µF) 340 320 300 280 260 240 -50 -25 0 25 50 75 100 125 150 o Ambient Temperature Ta ( C) FB Detection Voltage vs. Temperature T FB Detection Voltage V (V) 1.4 (V+=10V, C1=C2=C3=1µF) 1.35 1.3 1.25 1.2 1.15 -50 -25 0 25 50 75 100 125 150 o Ambient Temperature Ta ( C) Ver.2013-02-12 -5- NJW4191 CHARACTERISTICS Supply Current vs. Temperature Supply Current vs. Supply Voltage (C1=C2=C3=1µF, R =No Load, Ta=25oC) (V =10V, C1=C2=C3=1µF, R =No Load) L 1200 DD1 1200 1000 Supply Current I 1000 Supply Current I 1400 (µA) L DD1 (µA) 1400 + 800 600 400 800 600 400 200 200 0 0 5 10 15 + Supply Voltage V (V) 20 0 -50 -25 0 25 50 75 100 125 150 o Ambient Temperature Ta ( C) OFF state Supply Current vs. Temperature (V+=10V, V ON/OFF =GND, C1=C2=C3=1µF) 400 Supply Current I DD2 (µA) 500 300 200 100 0 -50 -25 0 25 50 75 100 125 150 o Ambient Temperature Ta ( C) -6- Ver.2013-02-12 NJW4191 MEMO [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. Ver.2013-02-12 -7-