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| NJM2360A HIGH PRECISION DC/DC CONVERTER CONTROL IC GENERAL DESCRIPTION The NJM2360A is a control circuit containing the primary functions required for DC to DC CONVERTOR. This device consist of high precision reference, comparator controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This IC was specifically designed to be incorporated in step-up, step-down and inverting applications with a minimum number of external components. This IC is desiged to be 5% output voltage by using precision 1% resistance on external detected resistance. FEATURES * Operating Voltage (2.5V to 40V) * Precision 2% Reference * Low Standby Current * Output Voltage VOR 1.25 to 40V * Oscillator Frequency fOSC 100Hz to 100kHz * Output Switch Current to 1.5A * Package Outline DIP8, DMP8 * Bipolar Technology PIN CONFIGURATION PACKAGE OUTLINE NJM2360AD NJM2360AM NJM2360AD NJM2360AM BLOCK DIAGRAM Ver.2003-07-18 -1- NJM2360A ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Comparator Input Voltage Range Power Dissipation Switch Current Operating Temperature Range Storage Temperature Range SYMBOL V + (Ta = 25C) RATINGS 40 -0.3 to 40 (DIP8) 875 (DMP8) 750 1.5 -40 to + 85 -40 to +150 (note1) UNIT V V mW mW A C C VIR PD ISW Topr Tstg (note 1) At on PC board ELECTRICAL CHARACTERISTICS DC Characteristics (V+ = 5V, Ta = 25C) PARAMETER Operating Current SYMBOL + TEST CONDITION 5V V 40V, CT = 0.001F + S1 = V , INVIN > Vth, ES = GND 5V V 40V + 5V V 40V SI = V Ichg = Idischg Darlington Connection (CS = CD) ISW = 1.0A ISW = 1.0A, IC (driver) = 50mA (Forced =20) ISW = 1.0A, VCE = 5.0V VCE = 40V + + MIN. - TYP. 2.4 MAX. 3.5 UNIT mA ICC Oscillator Charge Current Discharge Current Voltage Swing Discharge to Charge Current Ratio Peak Current Sense Voltage Ichg Idischg VOSC Idischg/Ichg VIPK(sense) 20 150 250 35 200 0.5 6 300 50 250 350 A A VP-P mV Output Switch (Note 2) Saturation Voltage 1 Saturation Voltage 2 DC Current Gain Collector Off-State Current VCE(sat) 1 VCE(sat) 2 hFE IC(off) Vth IIB 35 1.225 1.0 0.5 120 10 1.250 40 1.3 0.7 1.275 400 V V nA V nA Comparator Threshold Voltage Input Bias Current VIN = OV Note 2 : Output switch tests are performed under pulsed conditions to minimize power dissipation. [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. -2- Ver.2003-07-18 |
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