NJM1431A NJM1431AL1 NJM1431AU NJM1431AF - Datasheet Archive

 

ADJUSTABLE HIGH PRECISION SHUNT REGULATOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM1431A is a precision shunt regulator.

 

NJM1431A NJM1431A ADJUSTABLE HIGH PRECISION SHUNT REGULATOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM1431A NJM1431A is a precision shunt regulator. Compared to the conventional 431, The NJM1431A NJM1431A offers higher voltage accuracy and small package availability to support a wide range of applications. NJM1431AL1 NJM1431AL1 FEATURES Operating Voltage VREF to 36V Precision Voltage Reference 2.465V±1% 2.9mm × 1.5mm to MTP (SOT23) package Adjustable Output Voltage For External Resistance two Parts. Bipolar Technology Package Outline TO-92, SOT-89 (3pin), MTP5 BLOCK DIAGRAM NJM1431AU NJM1431AU NJM1431AF NJM1431AF PIN CONFIGURATION CATHODE 1. REFERENCE 2. ANODE 3. CATHODE REFERENCE 1 2 1 3 NJM1431AL1 NJM1431AL1 2 3 NJM1431AU NJM1431AU VREF NC 1 ANODE 5 REFERENCE ANODE 2 NC 3 4 CATHODE NJM1431AF NJM1431AF Ver.2003-11-21 -1- NJM1431A NJM1431A ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL Cathode Voltage VKA Continuous Cathode Current IK Reference Input Current IREF Power Dissipation PD Operating Temperature Range Storage Temperature Range TOPR TSTG MAXIMUM RATINGS +37 -100 ~ 150 -0.05 ~ 10 (TO-92) 500 (SOT-89) 350 (MTP5) 200 -40 ~ +85 -40 ~ +150 RECOMMENDED OPERATING CONDITIONS (Ta=25°C) PARAMETER SYMBOL MIN. TYP. Cathode Voltage VKA VREF ­ Cathode Current IK 1 ­ UNIT V mA mA mW °C °C MAX. 36 100 UNIT V mA ELECTRICAL CHARACTERISTICS (IK=10mA, Ta=25°C) PARAMETER Reference Voltage Reference Voltage Change vs. Cathode Voltage Change Reference Input Current Minimum Input Current Cathode Current (Off Cond.) Dynamic Impedance SYMBOL VREF TEST CONDITION MIN. TYP. MAX. UNIT VKA=VREF VREF VKA 10V (*1) (*2) 2.440 ­ 2.465 ±1.4 2.490 ±2.7 V mV/V 10V VKA 36V (*2) ­ ±1.0 ±2.0 mV/V IREF IMIN R1=10k, R2= VKA=VREF, VREF=1% (*2) (*1) ­ ­ 2 0.4 4 1.0 uA mA IOFF VKA=36V, VREF=0V (*3) ­ 0.1 1.0 uA ZKA VKA= VREF, f1kHz 1mA IK 100mA (*1) ­ 0.2 0.5 MIN. TYP. MAX. UNIT VREF/ VKA TEMPERATURE CHARACTERISTICS (IK=10mA, Ta= -40°C ~ 85°C) PARAMETER SYMBOL TEST CONDITION Reference Voltage VKA=VREF (*1) ­ 8 17 mV VREF Change Reference Input Current R1=10k, R2= (*2) ­ 0.4 1.2 uA IREF Change The "Dynamic Impedance", "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 (Fig.1) (*2): Test Circuit (Fig.2) (*3): Test Circuit (Fig.3) -2- Ver.2003-11-21 NJM1431A NJM1431A TEST CIRCUIT INPUT VKA INPUT IK VKA IOFF IREF R2 Fig.1 VKA=VREF to test circuit INPUT IK R1 VREF VKA VREF Fig.2 VKA>VREF to test circuit Fig.3 IOFF to test circuit R1 VO = VKA = VREF1 + + IREF × R1 R2 VO=VKA=VREF POWER DISSIPATION VS. AMBIENT TEMPERATURE 600 Power Dissipation PD (mW) TO-92 500 400 SOT-89 300 MTP5 200 100 0 0 Ver.2003-11-21 25 50 75 Ambient Temperature Ta (°C) 100 -3- NJM1431A NJM1431A TYPICAL CHARACTERISTICS Reference Voltage vs. Cathode Current (V =V KA 2.49 Reference Voltage VREF (V) REF 2.48 2.46 2.44 2.42 2.4 0.1 1 10 Cathode Current IK (mA) 1 0.5 0 -50 -25 0 25 50 75 100 125 150 o Ambient Temperature Ta ( C) 2.47 2.46 2.45 (I =10mA, R1=Variable, R2=10k, Ta=25oC) K 2.49 K 1.5 2.48 Reference Voltage vs. Cathode Voltage Reference Input Current vs. Temperature (I =10mA, R1=10k, R2= ) Reference Voltage VREF (V) Reference Input Current IREF (uA) 2 2.48 2.47 2.46 2.45 2.44 80 60 0 0.01 Aunstable Operaion Region 0.1 1 Output Capacitor COUT (uF) 0.5 Dynamic Impedance |ZKA| () Cathode Current IK (mA) (V =V , C =Ceramic Capacitor, Ta=25 C) KA REF OUT 100 20 10 20 30 Cathode Voltage V (V) 40 Dynamic Impedance o Stable Operaion Region 0 KA Safety Operating Boundary Condition 40 Reference Voltage vs. Temperature (VKA=VREF , IK=10mA) 2.44 -50 -25 0 25 50 75 100 125 150 o Ambient Temperature Ta ( C) 100 8 Reference Voltage VREF (V) 2.5 , Ta=25oC) 10 (IK=1 to 100mA, VKA =VREF, Ta=25oC) 0.4 0.3 0.2 0.1 0 0.001 0.01 0.1 1 10 100 Cathode Current Frequency f (kHz) 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. -4- Ver.2003-11-21 NJM1431A NJM1431A MEMO [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.2003-11-21 -5-