NJM2820, NJM2821, NJM2822 ADJUSTABLE HIGH PRECISION SHUNT REGULATOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM2820/ 2821/ 2822 is a 1.25V precision shunt regulator. High precision voltage accuracy of 0.7%* is realized by the total optimization from chip design to packaging. In addition, it features low cathode current of 80uA for low NJM2820F current operation. NJM2821F It is suitable for AC-DC converter secondary circuit, NJM2822F reference voltage applications for A/D and D/A converters, and other applications where precision reference is required. FEATURES High Precision Voltage Reference 1.250V0.7% Flow Soldering* Minimum Input Current 80uA typ. Operating Voltage V to 13V REF Adjustable Output Voltage Bipolar Technology Package Outline MTP5 BLOCK DIAGRAM PIN CONFIGURATION CATHODE NC 1 5 CATHODE ANODE 2 NC 3 4 REFERENCE REFERENCE NJM2820F NC 1 5 REFERENCE ANODE 2 V REF NC 3 4 CATHODE NJM2821F ANODE NC 1 5 ANODE ANODE 2 CATHODE 3 4 REFERENCE NJM2822F * These contents are based on the result that evaluated the arbitrary sample. The characteristic is not guaranteed. The design and reliability that fully considered flow mounting are checked but the influence by temperature profile etc. is also considered. Please consult with sales representatives for a recommendation temperature profile. Ver.2009-11-12 - 1 - NJM2820, NJM2821, NJM2822 ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL MAXIMUM RATINGS UNIT Cathode Voltage V 14 V KA Continuous Cathode Current I -30 50 mA K Reference Input Current I mA -10 0.05 REF Power Dissipation P (MTP5) 200 mW D Operating Temperature Range T -40 +85 C OPR Storage Temperature Range T C -40 +150 STG RECOMMENDED OPERATING CONDITIONS (Ta=25C) PARAMETER SYMBOL MIN. TYP. MAX.UNIT Cathode Voltage V V 13 V KA REF Cathode Current I 0.5 30 mA K ELECTRICAL CHARACTERISTICS (I =1mA,Ta=25C) K PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Reference Voltage V V =V (*1) REF KA REF 1241 1250 1259 mV Reference Voltage (*2) V V 5V 2.7 mV/V REF KA V / REF Change vs. Cathode (*2) V KA mV/V 5V V 13V 2.0 KA Voltage Change Reference Input Current (*2) I R1=10k , R2= 2.0 4.0 uA REF Minimum Input Current (*1) I V =V , V =1% 80 500 uA MIN KA REF REF Cathode Current I (*3) OFF V =13V, V =0V 0.01 1.0 uA KA REF (Off Cond.) Dynamic Impedance Z V = V , f 1kHz KA KA REF (*1) 0.12 0.5mA I 30mA K TEMPERATURE CHARACTERISTICS (I =1mA,Ta=-40C 85C) K PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Reference Voltage V V =V (*1) REF KA REF 10 mV Change Reference Input Current I REF R1=10k ,R2= (*2) 0.5 uA Change V Reference voltage includes error. REF (*1): Test Circuit (Fig.1) (*2): Test Circuit (Fig.2) (*3): Test Circuit (Fig.3) In case of NJM2822, all electrical characteristics are measured referencing to the anode terminal of PIN 5. Ver.2009-11-12 - 2 -