NJU7665 Series SMALL PACKAGE VOLTAGE INVERTER GENERAL DESCRIPTION PACKAGE OUTLINE 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 NJU7665XF battery use items and other portable items. FEATURES Input Voltage : 1.5 to 5.5V Switching Frequency : fsw = 7.5k, 75k, 150kHz Low Output Resistance : 75 MAX. (C version, C = 1F, V = 3V) IN Low Operating Current : 100A MAX. (A version) C-MOS Technology Package Outline : MTP-5 LINE-UP TABLE TYPE NO. Switching Frequency Supply Current Output Resistance NJU7665A 7.5kHz (typ.) 100A (max.) 1k (max.) NJU7665B 75kHz (typ.) 0.65mA (max.) 100 (max.) NJU7665C 150kHz (typ.) 1.4mA (max.) 75 (max.) BLOCK DIAGRAM PIN CONFIGURATION TERMINAL DESCRIPTION Terminal No. Symbol Function 1 V Output Voltage OUT 2 V Power Supply Terminal IN - 3 Charge Pump Capacitor (-) Connecting Terminal C 4 GND Ground Terminal + 5 Charge Pump Capacitor (+) Connecting Terminal C Ver.2018-07-18 - 1 - NJU7665 Series ABSOLUTE MAXIMUM RATINGS (T = 25C) a PARAMETER SYMBOL RATINGS UNIT Input Supply Voltage V -0.3 to 6.0 V IN Power Dissipation P 200 mW D Operating Temperature T -40 to + 85 C opr Storage Temperature T -55 to +125 C stg Note1) Decoupling capacitor should be connected between V and GND due to the stabilized operation for the IC. IN ELECTRICAL CHARACTERISTICS A version (V = 3.0V, C1 = C2 = 1F, T = 25C) IN a PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT Supply Current I RL = 100 A IN Input Supply Voltage VIN -40 C Ta 85C 1.5 5.5 V Output Resistance R I = 500A 1.0 k OUT OUT Switching Frequency F 4.5 7.5 10.5 kHz SW Voltage Conversion Rate V RL = 90 99.3 % EF B version (V = 3.0V, C1 = C2 = 1F, T = 25C) IN a PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT Supply Current I RL = 0.65 mA IN Input Supply Voltage V -40 C Ta 85C 1.5 5.5 V IN Output Resistance R I = 5mA 100 OUT OUT Switching Frequency F 40 75 100 kHz SW Voltage Conversion Rate V RL = 90 99.3 % EF C version (V = 3.0V, C1 = C2 = 1F, T = 25C) IN a PARAMETER SYMBOL CONDITION MIN. TYP. MAX. UNIT Supply Current I RL = 1.4 mA IN Input Supply Voltage VIN -40 C Ta 85C 1.5 5.5 V Output Resistance R I = 10mA 75 OUT OUT Switching Frequency F 80 150 200 kHz SW Voltage Conversion Rate V RL = 90 99.3 % EF NOTE2) Please minimize the wiring impedance of C+, C- terminals due to the power conversion rate. Ver.2018-07-18 - 2 -