NJM2360 DC/DC CONVERTER CONTROL IC GENERAL DESCRIPTION PACKAGE OUTLINE The NJM2360 is a DC to DC converter control IC. Due to the internalization of a high current output switch, 1.5A switching operations are available. The NJM2360 is designed to be incorporated in step-up, step-down and inverting applications with a minimum number of external components. Output current is limited by an external resistor. NJM2360D NJM2360M FEATURES Output Switch Current 1.5A(MAX) Operating Voltage 2.5V* to 40V Internal Over Current Limit Circuit + Supply Voltage V 2.5V* to 40V Output Voltage V 1.25V to 40V OR Oscillator Frequency f 100Hz to 100kHz OSC Package Outline DIP8, DMP8 *Ta =25C. At low temperature, the minimum voltage is 3.0V. PIN CONFIGURATION NJM2360D NJM2360M BLOCK DIAGRAM Ver.2007-06-08 - 1 - NJM2360 ABSOLUTE MAXIMUM RATINGS (T = 25C) a PARAMETER SYMBOL RATINGS UNIT + Supply Voltage V 40 V + Comparator Input Voltage Range V -0.3 to V V IR (DIP8) 700 mW Power Dissipation P D (DMP8) 600 (note1) mW Switch Current I 1.5 A SW Operating Temperature Range T -40 to + 85 C opr Storage Temperature Range T -40 to +125 C stg (note 1) At on PC board ELECTRICAL CHARACTERISTICS + DC Characteristics (V = 5V, T = 25C) a PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT + 5V V 40V, C = 0.001F T Operating Current I - 2.4 3.5 mA CC + S = V , INV > V , E = GND I IN th S Oscillator + Charge Current I 5V V 40V 20 35 50 A chg + Discharge Current I 5V V 40V 150 200 250 A dischg Voltage Swing V - 0.5 - V OSC P-P + Discharge to Charge Current Ratio I /I S = V - 6 - - dischg chg I Peak Current Sense Voltage V I =I 250 300 350 mV IPK(sense) chg dischg Output Switch (Note 2) Darlington Connection (C = C ) S D Saturation Voltage 1 V 1 - 1.0 1.3 V CE(sat) I = 1.0A SW I = 1.0A, IC(driver) = 50mA SW Saturation Voltage 2 V 2 - 0.5 0.7 V CE(sat) (Forced = 20) DC Current Gain h I = 1.0A, V = 5.0V 35 120 - - FE SW CE Collector Off-State Current I V = 40V - 10 - nA C(off) CE Comparator Threshold Voltage V 1.18 1.25 1.32 V th Input Bias Current I V = 0V - 40 400 nA IB IN Note 2 : Output switch tests are performed under pulsed conditions to minimize power dissipation. Ver.2007-06-08 - 2 -