NJM431U-TE1 Nisshinbo

NJM431 ADJUSTABLE PRECISION SHUNT REGULATOR GENERAL DESCRIPTION PACKAGE OUTLINE The NJM431 is a 3 terminal adjustable shunt regulator. The output voltage may be set to any value between V (about 2.5V) and 36V REF by two resistors. Output circuitry shows a sharp turn-on characteristics. Applications include shunt regulators, series regulators for small power and isolation regulators with photo couplers. NJM431D (DIP8) NJM431M (DMP8) FEATURES Operating Voltage (V = V to 36V) KA REF Fast Turn-On Response NJM431U (SOT-89) Cathode Current (1mA to 100mA) Low Dynamic Output Impedance (0.2typ.) Load Regulation typically (0.1%) Package Outline DIP8, DMP8, SOT-89 Bipolar Technology PIN CONFIGURATION NJM431D NJM431M NJM431U EQUIVALENT CIRCUIT Ver.2012-06-15 - 1 - NJM431 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS (T =25C) a PARAMETER SYMBOL RATINGS UNIT Cathode Voltage (note) V 37 V KA Continuous Cathode Current I -100 to 150 mA K Reference Input Current I -0.05 to 10 mA REF (DIP8) 700 mW Power Dissipation P (DMP8) 300 mW D (SOT89) 350 mW Operating Temperature T -40 to +85 C opr Storage Temperature Range T -40 to +125 C stg (note) Unless specified, all voltage value are with respect to the anode terminal. RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN. TYP. MAX.UNIT Cathode Voltage V V - 36 V KA REF Cathode Current I 1 - 100 mA K ELECTRICAL CHARACTERISTICS (T =25 C) a PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX.UNIT Reference Voltage V V = V , I = 10mA (note 1) 2440 2495 2550 mV REF KA REF K Reference Voltage Change V V = V , I = 10mA (note 1) REF KA REF K - 8 17 mV (Full Oper. Temp. Range) (dev) Ta = -20C to +85 C V REF V = 10V - V - -1.4 -2.7 mV/V KA REF Reference Voltage Change I = 10mA (note 2) K vs. Cathode Voltage Change V = 36V - 10V - -1 -2 mV/V V KA KA Reference Input Current I I = 10mA, R1 = 10k, R2 = (note 2) - 2 4 A REF K Reference Input Current Change I I = 10mA, R1 = 10k, R2 = (note 2) REF K - 0..4 1.2 A (Full Oper. Temp. Range) (dev) Ta = -20C to +85 C Minimum Input Current I V = V (note 1) - 0.4 1.0 mA MIN KA REF Cathode Current (Off Cond.) I V = 36V, V = 0 (note 3) - 0.1 1.0 A OFF KA REF V = V , I = 1mA to 100mA, KA REF K Dynamic Impedance Z - 0.2 0.5 KA f 1kHz (note 1) (note 1) TEST CIRCUIT (Fig. 1) (note 2) TEST CIRCUIT (Fig. 2) (note 3) TEST CIRCUIT (Fig. 3) Ver.2012-06-15 - 2 -