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NJU7665A Dataheets PDF



Part Number NJU7665A
Manufacturers JRC
Logo JRC
Description SMALL PACKAGE VOLTAGE INVERTER
Datasheet NJU7665A DatasheetNJU7665A Datasheet (PDF)

NJU7665 Series SMALL PACKAGE VOLTAGE INVERTER ■ GENERAL DESCRIPTION The NJU7665 series is a voltage inverter incorporated RC oscillator, pre-buffer and power-MOS, which generates a polarity-converted negative voltage from +1.5V to +5.5V. The switching frequency is fixed by internal RC oscillator and the following line-up of 3 version are available to select. The NJU7665 series is in MTP-5 package and it is suitable for battery use items and other portable items. ■ PACKAGE OUTLINE NJU7665XF ■.

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NJU7665 Series SMALL PACKAGE VOLTAGE INVERTER ■ GENERAL DESCRIPTION The NJU7665 series is a voltage inverter incorporated RC oscillator, pre-buffer and power-MOS, which generates a polarity-converted negative voltage from +1.5V to +5.5V. The switching frequency is fixed by internal RC oscillator and the following line-up of 3 version are available to select. The NJU7665 series is in MTP-5 package and it is suitable for battery use items and other portable items. ■ PACKAGE OUTLINE NJU7665XF ■ FEATURES Input Voltage Switching Frequency Low Output Resistance Low Operating Current C-MOS Technology Package Outline : 1.5 to 5.5V : fsw = 7.5k, 75k, 150kHz : 75Ω MAX. (C version, C = 1μF, VIN = 3V) : 100μA MAX. (A version) : MTP-5 ■ LINE-UP TABLE TYPE NO. Switching Frequency NJU7665A 7.5kHz (typ.) NJU7665B 75kHz (typ.) NJU7665C 150kHz (typ.) Supply Current 100μA (max.) 0.65mA (max.) 1.4mA (max.) Output Resistance 1kΩ (max.) 100Ω (max.) 75Ω (max.) ■ BLOCK DIAGRAM ■ PIN CONFIGURATION ■ TERMINAL DESCRIPTION Terminal No. 1 2 3 4 5 Symbol VOUT VIN CGND C+ Function Output Voltage Power Supply Terminal Charge Pump Capacitor (-) Connecting Terminal Ground Terminal Charge Pump Capacitor (+) Connecting Terminal Ver.2018-07-18 -1- NJU7665 Series ■ ABSOLUTE MAXIMUM RATINGS (Ta = 25ºC) PARAMETER SYMBOL RATINGS UNIT Input Supply Voltage VIN -0.3 to 6.0 V Power Dissipation PD 200 mW Operating Temperature Topr -40 to + 85 ºC Storage Temperature Tstg -55 to +125 ºC Note1) Decoupling capacitor should be connected between VIN and GND due to the stabilized operation for the IC. ■ ELECTRICAL CHARACTERISTICS A version PARAMETER SYMBOL CONDITION Supply Current IIN RL = ∞ Input Supply Voltage Output Resistance VIN ROUT -40 °C ≤ Ta ≤ 85°C IOUT = 500μA Switching Frequency Voltage Conversion Rate FSW VEF RL = ∞ (VIN = 3.0V, C1 = C2 = 1μF, Ta = 25°C) MIN. TYP. MAX. UNIT – – 100 μA 1.5 – 5.5 V – – 1.0 kΩ 4.5 7.5 10.5 kHz 90 99.3 – % B version PARAMETER Supply Current Input Supply Voltage Output Resistance Switching Frequency Voltage Conversion Rate SYMBOL IIN VIN ROUT FSW VEF CONDITION RL = ∞ -40 °C ≤ Ta ≤ 85°C IOUT = 5mA RL = ∞ (VIN = 3.0V, C1 = C2 = 1μF, Ta = 25°C) MIN. TYP. MAX. UNIT – – 0.65 mA 1.5 – 5.5 V – – 100 Ω 40 75 100 kHz 90 99.3 – % C version PARAMETER SYMBOL CONDITION (VIN = 3.0V, C1 = C2 = 1μF, Ta = 25°C) MIN. TYP. MAX. UNIT Supply Current IIN RL = ∞ – – 1.4 mA Input Supply Voltage Output Resistance VIN ROUT -40 °C ≤ Ta ≤ 85°C IOUT = 10mA 1.5 – 5.5 V – – 75 Ω Switching Frequency FSW 80 150 Voltage Conversion Rate VEF RL = ∞ 90 99.3 NOTE2) Please minimize the wiring impedance of C+, C- terminals due to the power conversion rate. 200 – kHz % -2- Ver.2018-07-18 ■CHARACTERISTICS Power Conversion Rate: PEF (%) Power Conversion Rate vs. Output Current 100 (VIN=3V, C1=C2=C3=1 F/50V, Ta=25 C) 90 80 70 60 50 40 30 20 10 0 0 NJU7665 A version C1 to C3: GRM21BB31H105K (Murata) 1234 Output Current: IOUT (mA) 5 Power Conversion Rate: PEF (%) Power Conversion Rate vs. Output Current 100 (VIN=3V, C1=C2=C3=1 F/50V, Ta=25 C) 90 80 70 60 50 40 30 20 10 0 0 NJU7665 B version C1 to C3: GRM21BB31H105K (Murata) 5 10 15 Output Current: IOUT (mA) 20 Power Conversion Rate: PEF (%) Power Conversion Rate vs. Output Current 100 (VIN=3V, C1=C2=C3=1 F/50V, Ta=25 C) 90 80 70 60 50 40 30 20 10 0 0 NJU7665 C version C1 to C3: GRM21BB31H105K (Murata) 5 10 15 Output Current: IOUT (mA) 20 Ver.2018-07-18 Output Voltage: VOUT (V) Output Voltage: VOUT (V) Output Voltage: VOUT (V) NJU7665 Series Output Voltage vs. Output Current 0 (VIN=3V, C1=C2=C3=1 F/50V, Ta=25 C) -0.5 -1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5 -5 0 NJU7665 A version C1 to C3: GRM21BB31H105K (Murata) 1234 Output Current: IOUT (mA) 5 Output Voltage vs. Output Current 0 (VIN=3V, C1=C2=C3=1 F/50V, Ta=25 C) -0.5 -1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5 -5 0 NJU7665 B version C1 to C3: GRM21BB31H105K (Murata) 5 10 15 Output Current: IOUT (mA) 20 Output Voltage vs. Output Current 0 (VIN=3V, C1=C2=C3=1 F/50V, Ta=25 C) -0.5 -1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5 -5 0 NJU7665 C version C1 to C3: GRM21BB31H105K (Murata) 5 10 15 Output Current: IOUT (mA) 20 -3- NJU7665 Series ■ APPLICATION CIRCUIT 1. Negative Voltage Output Circuit 2. Parallel Connection Circuit The following circuit reduce the output impedance. -4- [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.2018-07-18 .


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