Pb Free Plating Product ADJUSTABLE PRECISION SHUNT REGULATOR APEC AP431 DESCRIPTION FEATURES The AP431 is a low voltage three terminal adjustable shunt Low voltage operation (2.5V) regulator with a guaranteed thermal stability over applicable Adjustable output voltage V0 =VREF to 18V temperature ranges. The output voltage can be set to any value Wide operating current range 0.4mA to 100mA between VREF (approximately 2.5 V) to 18V with two external Low dynamic output impedance 0.5Ω max. resistors (see application circuit). This device has a typical ESD rating is 5.5KV(Per MIL-STD-883D). Halogen Free Product output impedance of 0.2Ω. Active output circuitry provides a very sharp turn on characteristic, making this device excel lent APPLICATIONS replacement for Zener diodes in many applications. Linear Regulators The AP431 is characterized for operation from 0 C to 105 C, Adjustable Supplies and four package options (SOT-23, SOT-89, SO-8 and TO-92) Switching Power Supplies allow the designer the opportunity to select the proper package Battery Operated Computers for their application. Instrumentation Computer Disk Drives o o PIN CONFIGURATIONS BLOCK DIAGRAM SOT-23 Lead (Top View) 2 Cathode Cathode Ref + 3 Anode 1 - Reference SOT-89 Lead (Top View) Vref Anode 3 CATHODE 2 ANODE 1 REF SO-8 (Top View) Cathode 1 8 Reference Anode 2 7 Anode Anode 3 6 Anode NC 4 5 NC TO-92 (Top View) 3 Cathode 2 Anode 1 Reference SYMBOL DIAGRAM Cathode Ref Anode ADVANCED POWER ELECTRONICS CORP. 1 APEC ADJUSTABLE PRECISION SHUNT REGULATOR AP431 ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE Parameter Symbol Maximum Units Cathode Voltage VKA 18 V Continuous Cathode Current I KA 150 mA Reference Current I REF 10 mA TJ 125 ℃ Storage Temperature Range TSTG -65 to 150 ℃ Thermal Resistance θ JA 156 ℃/W TLEAD 260 ℃ Operating Junction Temperature Range Lead Temperature (Soldering) 10 seconds ELECTRICAL CHARACTERISTICS PARAMETER Reference voltage 1% Deviation of reference voltage Over full temperature range Ratio of change in reference voltage to the change in cathode voltage TA = 25℃ AP431 SYMB OL TEST CIRCUIT Vref 1 VKA = Vref VI(dev) 1 IKA = 10mA VKA = Vref , TA = full range ∆ Vref ________ 2 IKA = 10mA ∆ VKA = 10 V - Vref ∆ VKA TEST CONDITIONS IKA = 10mA UNIT MIN TYP MAX 2470 2495 2520 mV 4 25 mV -1.4 -2.7 mV/V Iref 2 IKA = 10mA, R1=10kΩ, R2 = ∞ 2 4 µA Deviation of Reference current over full temperature range II(dev) 2 IKA = 10mA, R1=10kΩ, R2 = ∞ TA = full range 0.4 1.2 µA Minimum cathode current for regulation Imin 1 VKA = Vref 0.4 1 mA Off-state cathode current Ioff 3 VKA = 18V, Vref = 0 0.1 1 µA Dynamic impedance rZ 1 IKA = 1mA to 100mA, VKA = Vref f ≤ 1kHZ 0.2 0.5 Ω Reference current ADVANCED POWER ELECTRONICS CORP. 2 ADJUSTABLE PRECISION SHUNT REGULATOR APEC AP431 TYPICAL PERFORMANCE CHARACTERISTICS CATHODE CURRENT CATHODE CURRENT Vs. Vs. CATHODE VOLTAGE CATHODE VOLTAGE 800 150 125 T A = 2 5 oC 600 Cathode Current (µA) 100 Cathode Current (mA) V K A = V ref TA = 25 o C VKA = Vre f 75 50 25 0 - 25 - 50 400 200 0 - 75 - 100 - 200 -2 -1 0 1 2 3 -1 0 Cathode Voltage (V) Vs. Vs. JUNCTION TEMPERATURE JUNCTION TEMPERATURE Reference Current (µA) Reference Voltage (mV) 3 REFERENCE INPUT CURRENT VKA =Vref IKA =10mA 2510 2505 2500 2495 2490 3 2. 5 R1 = 10k Ω R2 = ∞ IKA =10mA 2 1. 5 1 0. 5 2485 2480 - 20 2 REFERENCE VOLTAGE 2520 2515 1 Cathode Voltage (V) 0 20 40 60 80 100 120 o Junction Temperature ( C) 0 - 20 0 20 40 60 80 100 120 o Junction Temperature ( C) ADVANCED POWER ELECTRONICS CORP. 3 APEC ADJUSTABLE PRECISION SHUNT REGULATOR AP431 TEST CIRCUITS Input V KA Input Input VKA VKA I off I KA IKA R1 Iref Vref Vref R2 VKA=Vref (1+ R1/R2 ) + Iref x R1 Test Circuit 1: Test Circuit 2: Test Circuit 3: VKA = Vref VKA > Vref Off State Current APPLICATION CIRCUIT VIN VOUT R R1 Vref AP431 R2 VOUT = Vref (1+ R1/R2 ) GND ADVANCED POWER ELECTRONICS CORP. 4 ADJUSTABLE PRECISION SHUNT REGULATOR APEC AP431 OUTLINE DRAWING SOT-23 D D1 E1 SYMBOL A A1 A2 A3 D1 e D E E1 L L1 θ E e L L1 A A1 A 2 A3 MIN 0.20 --0.70 0.30 1.70 2.80 2.25 1.40 2.25 1.40 -- NOM 0.30 0.00 0.10 0.80 0.40 2.00 2.90 2.50 1.50 2.50 1.50 2O MAX 0.40 --0.90 0.50 2.30 3.00 2.75 1.60 2.75 1.60 -- θ Unit: :mm OUTLINE DRAWING SOT-89 C SYMBOL A B C D E F G H I H D B E I F G MIN 4.40 4.05 1.50 2.40 0.31 1.48 2.96 1.40 0.35 MAX 4.60 4.25 1.70 2.60 0.46 1.52 3.04 1.60 0.41 Unit: :mm OUTLINE DRAWING SO-8 H E B D B1 A1 A C SYMBOL A A1 B B1 C D H E MIN MAX 1.5 1.72 0.1 0.22 0.25 0.5 1.27 BSC 0.18 0.25 4.83 4.93 5.84 6.14 3.81 3.96 Unit: :mm ADVANCED POWER ELECTRONICS CORP. 5 ADJUSTABLE PRECISION SHUNT REGULATOR APEC AP431 OUTLINE DRAWING TO-92 D1 A SYMBOL MIN A 3.45 A1 1.22 b D1 4.27 D 4.14 E 4.32 e L 12.98 E SEATING PLANE D L A NOM 3.56 1.3 0.38 4.52 4.29 4.57 1.27 13.49 MAX 3.66 1.37 4.78 4.45 4.83 14.00 Unit: mm e b ORDERING INFORMATION AP431 X - HF Halogen Free Circuit Type: 2.5V Precision Adjustable Shunt Regulator / Amplifier Temperature Range: 0～ +105℃ Package: M = SO-8 N = SOT-23 T = TO-92 G = SOT-89 Data & specifications subject to change without notice 20090826 ADVANCED POWER ELECTRONICS CORP. 6