NJM1431A ADJUSTABLE HIGH PRECISION SHUNT REGULATOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM1431A is a precision shunt regulator. Compared to the conventional 431, The NJM1431A offers higher voltage accuracy and small package availability to support a wide range of applications. NJM1431AU NJM1431AF FEATURES NJM1431AKF1 Operating Voltage V to 36V REF Precision Voltage Reference 2.465V1% 1.6mm 1.2mm to ESON4 package Adjustable Output Voltage Bipolar Technology Package Outline NJM1431AU : SOT89 (3pin) NJM1431AF : SOT-23-5 (MTP5) NJM1431AKF1 : ESON4-F1 BLOCK DIAGRAM PIN CONFIGURATION CATHODE 1. REFERENCE 2. ANODE 3. CATHODE 123 REFERENCE NJM1431AU V REF NC 1 5 REFERENCE ANODE 2 NC 3 4 CATHODE ANODE NJM1431AF REFERENCE 1 4 ANODE 4 1 3 2 CATHODE 23 NC Exposed PAD on backside connect to ANODE. (Top View) (Bottom View) NJM1431AKF1 Ver.2010-03-26 - 1 - NJM1431A ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER SYMBOL MAXIMUM RATINGS UNIT Cathode Voltage V +37 V KA Continuous Cathode Current I -100 ~ 150 mA K Reference Input Current I -0.05 ~ 10 mA REF SOT89 (3pin) 350 SOT-23-5 200 Power Dissipation P mW D ESON4-F1 412 (*1) 1,150 (*2) Operating Temperature Range T -40 ~ +85 C OPR Storage Temperature Range T -40 ~ +150 C STG (*1): Mounted on glass epoxy board based on EIA/JEDEC. (101.5 114.57 1.6mm: 2Layers) (*2): Mounted on glass epoxy board based on EIA/JEDEC. (101.5 114.57 1.6mm: 4Layers Internal foil area: 99.5 99.5mm) RECOMMENDED OPERATING CONDITIONS (Ta=25C) PARAMETER SYMBOL MIN. TYP. MAX. UNIT Cathode Voltage V V 36 V KA REF Cathode Current I 1 100 mA K ELECTRICAL CHARACTERISTICS (I =10mA, Ta=25C) K PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Reference Voltage V V =V (*3) 2.440 2.465 2.490V REF KA REF Reference Voltage V V 10V (*4) 1.4 2.7 mV/V REF KA V / REF Change vs. Cathode V KA 10V V 36V (*4) mV/V 1.0 2.0 KA Voltage Change Reference Input Current I R1=10k, R2= (*4) 2 4 uA REF Minimum Input Current I V =V , V=1% (*3) 0.4 1.0 mA MIN KA REF REF Cathode Current I V =36V, V=0V (*5) 0.1 1.0 uA OFF KA REF (Off Cond.) V = V , f1kHz KA REF Dynamic Impedance Z (*3) 0.2 0.5 KA 1mA I 100mA K TEMPERATURE CHARACTERISTICS (I =10mA, Ta= -40C ~ 85C) K PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Reference Voltage V V =V (*3) 8 17 mV REF KA REF Change Reference Input Current R1=10k, R2= (*4) 0.4 1.2 uA I REF Change The maximum value of Dynamic Impedance, Reference Voltage Change and Reference Input Current Change are determined based on sampling evaluation from the 5 initial production lots, and thus not tested in the production test. Therefore, these values are for the reference design purpose only. V Reference voltage includes error. REF (*3): Test Circuit (Fig.1) (*4): Test Circuit (Fig.2) (*5): Test Circuit (Fig.3) Ver.2010-03-26 - 2 -