NJM2380/A, NJM2390/A ADJUSTABLE HIGH PRECISION SHUNT REGULATOR GENERAL DESCRIPTION The NJM2380/A and NJM2390/A are adjustable high precision shunt regulators. They are adapted for downsizing power supply module, battery charger and others, because an ultra mini package SOT23-5 is included in the package line-up. PACKAGE OUTLINE NJM2380D/AD ( DIP8 ) FEATURES Operating Voltage VREF to 18V High Precision Voltage Reference 2.465V2% 2.465V1% : A Version Mounted in Ultra Mini Package SOT23-5 Minimum External Parts Bipolar Technology Package Outline DIP8, DMP8, SOP8 JEDEC 150mil SOT89-3, SOT23-5 NJM2380M/AM ( DMP8 ) NJM2380U/AU NJM2390U/AU ( SOT89-3 ) NJM2380E/AE ( SOP8 ) NJM2380F/AF ( SOT23-5 ) PIN CONFIGURATION PIN FUNCTION NJM2380D/AD NJM2380M/AM NJM2380E/AE 1. 2. 3. 4. 5. 6. 7. 8. CATHODE NC NC NC NC ANODE NC REFERENCE PIN FUNCTION NJM2380F/AF PIN FUNCTION NC ANODE NC CATHODE REFERENCE PIN FUNCTION 1. REFERENCE 2. ANODE 3. CATHODE NJM2380U/AU 1. 2. 3. 4. 5. 1. CATHODE 2. ANODE 3. REFERENCE NJM2390U/AU BLOCK DIAGRAM Ver.2011-12-08 -1- NJM2380/A, NJM2390/A ABSOLUTE MAXIMUM RATINGS PARAMETER (Ta=25C) SYMBOL RATINGS UNIT Cathode Voltage VKA +20 V Continuous Cathode Current IKA -100 to 150 mA Reference Input Current IREF -0.05 to 10 mA Power Dissipation PD (DIP8) 700 (DMP8) 300 (SOP8) 300 (SOT89) 350 (SOT23) mW 200 Operating Temperature Range TOPR -40 to +85 C Storage Temperature Range TSTG -50 to +150 C RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN. TYP. MAX. UNIT Cathode Voltage VKA VREF - 18 V Cathode Current IK 1 100 mA ELECTRICAL CHARACTERISTICS PARAMETER Reference Voltage (IK=10mA, Ta=25C) SYMBOL MIN. TYP. MAX. UNIT mV VKA=VREF(*1) 2415 2465 2515 VKA=VREF(*1), A Version 2440 2465 2490 VREFVKA10V(*2) - 1.4 2.7 mV/V 10VKA18V(*2) - 1 2 mV/V IREF R=10k, R2=(*2) - 2 4 A Minimum Input Current IMIN VKA=VREF(*1) - 0.4 1.0 mA Cathode Current (Off Cond.) IOFF VKA=18V, VREF=0V(*3) - 0.1 1.0 A VKA=VREF, f1kHz 1mAIK100mA(*1) - 0.2 - Reference Voltage Change vs. Cathode Voltage Change Reference Input Current Dynamic Impedance VREF CONDITIONS VREF/VKA ZKA TEMPERATURE CHARACTERISTICS PARAMETER SYMBOL (IK=10mA, Ta=-20 to +85C) CONDITIONS MIN. TYP. MAX. UNIT Reference Voltage Change VREF VKA=VREF(*1) - 8 17 mV Reference Input Current Change IREF R1=10k, R2=(*2) - 0.4 1.2 A The "Reference Voltage Change" and "Reference Input Current Change" is tested to using some samples of the first five lots. These "TEMPERATURE CHARACTERISTICS" are not guaranteed. VREF...Reference voltage includes error. (*1) : TEST CIRCUIT 1 (Fig.1) (*2) : TEST CIRCUIT 2 (Fig.2) (*3) : TEST CIRCUIT 3 (Fig.3) -2- Ver.2011-12-08 NJM2380/A, NJM2390/A TEST CIRCUIT 1, VKA=VREF 3, IOFF 2, VKA>VREF VO=VKA=VREF 1+ VO=VKA=VREF R1 +IREFR1 R2 (Fig.3) (Fig.2) (Fig.1) POWER DISSIPATION VS. AMBIENT TEMPERATURE Power Dissipation P D (mW) 800 DIP 700 600 500 400 SOT89 300 DMP/EMP 200 SOT23 (MTP5) 100 0 0 Ver.2011-12-08 25 50 75 Ambient Temperature Ta (C) 100 -3- NJM2380/A, NJM2390/A TYPICAL CHARACTERISTICS Reference Voltage Reference Voltage VKA=VREFTa=25C IK=10mAR1=VariableR2=2.5kTa=25C Reference Input Current Reference Voltage IK=10mAR1=10kR2= VKA=VREFIK=10mA Dynamic Inpedance IK=10mATa=25C -4- Ver.2011-12-08 NJM2380/A, NJM2390/A TYPICAL CHARACTERISTICS Safety Operating Boundary Condition Safety Operating Boundary Condition Test Circuit (Rin=30, Ta=25oC) 100 (mA) Aluminum Electrolytic Capacitor V =V 80 REF Rin=30 , 5V VKA IK Cathode Current I K KA 60 Stable Operaion Region V+ 40 COUT Unstable Operaion Region 20 0 0.1 1 Output Capacitor C OUT (F) 10 Note) Oscillation might occur while operating within the range of safety curve. So that, it is necessary to make ample margins by taking considerations of fluctuation of the device. Safety Operating Boundary Condition (Rin=30, Ta=25oC) Ceramic Capacitor V =V KA REF V =5V 80 KA Cathode Current I K (mA) 100 60 Stable Operaion 40 Region 20 0 0.01 Unstable Operaion Region 0.1 1 Output Capacitor C OUT (F) 10 [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.2011-12-08 -5-