NJM2369E Nisshinbo

NJM2369 SWITCHING REGULATOR CONTROL IC FOR FLYBACK GENERAL DESCRIPTION PACKAGE OUTLINE The NJM2369 is a high speed switching regulator control IC which can operate at low voltage. It uses a totempole output circuit, so that it can drive an external power MOS-FET directly. It is suitable for applications of flyback type switching NJM2369D NJM2369M regulation of up to 10W. ( DIP8 ) ( DMP8 ) FEATURES NJM2369E NJM2369V Operating Voltage (3.6V ~ 32V) ( SOP8 ) ( SSOP8 ) Wide Oscillator Range (5kHz ~ 350 kHz) Soft-Start function. Under Voltage Lockouts (U.V.L.O.) Bipolar Technology Package Outline DIP8, DMP8, SOP8 JEDEC 150mil, SSOP8 BLOCK DIAGRAM + REF CT CS V 8 7 6 5 30uA PIN FUNCTION V OSC REF - 1. IN L.O 2. F.B U.V.LO 3. GND 4. OUT + S.C.P 5. V ERAMP 6. CS 0.52V PWM 7. CT 8. REF 1 2 3 4 - IN OUTF.B GND Ver.2011-12-22 - 1 - NJM2369 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL MAXIMUM RATINGS UNIT + Input Voltage V 36 V Reference Output Current I 10 mA OR (DIP 8) 700 (DMP 8) 300 Power Dissipation P mW D (SOP 8) 300 (SSOP 8) 250 Operating Temperature Range T -40 ~ +85 C OPR Storage Temperature Range T -50 ~ 125 C STG + RECOMMENDED OPERATING CONDITIONS (V =6V, Ta=25C) PARAMETER SYMBOL RATINGS MIN. MAX. UNIT + Operating Voltage V 3.6 32 V Feed Back Resistor R 100 k NF Oscillator Timing Capacitor C 220 22,000 pF T Oscillator Timing Resistor R 22 100 k T Oscillate f 5 350 kHz OSC + ELECTRICAL CHARACTERISTICS (V =6V, R =33k, C =1,000pF, Ta=25C) T T REFERENCE VOLTAGE BLOCK PARAMETER SYMBOL RATINGS MIN. TYP. MAX.UNIT Output Voltage V I=1mA 2.45 2.50 2.55 V REF OR + Line Regulation L V =3.6V ~ 32V, I=1mA 6.8 20.7 mV INE OR Load Regulation L I =0.1mA ~ 5.0mA 5 30 mV OAD OR OSCILLATOR BLOCK PARAMETER SYMBOL RATINGS MIN. TYP. MAX.UNIT Oscillate fosc C =1,000pF, R =33k 85 105 125 kHz T T Oscillate Fluctuations1 + f V =3.6V ~ 32V 1 % dv (Line Fluctuations) Oscillate Fluctuations2 f 5 % Ta=-40C ~ +85C dt (Temp Fluctuations) ERROR AMPLIFIER BLOCK PARAMETER SYMBOL RATINGS MIN. TYP. MAX.UNIT Reference Voltage V 0.51 0.52 0.53 V B Input Bias Current I 5 100 nA B Open Loop Gain A 90 dB V Gain Band width Product G 0.6 MHz B V R =100k V-0.2 V Maximum Output Voltage OM+ NF REF (F.B Pin) V R =100k 200 mV OM- NF Output Source Current I V=1V 40 85 200 uA OM+ OM (F.B Pin) Ver.2011-12-22 - 2 -