SE431D SEAWARD | Alldatasheet

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Technical content

Features

¾ Low voltage operation (2.5V) ¾ Adjustable output voltage V 0 = VREF to 18V ¾ Wide operating current range 150 μA to 80mA ¾ Low dynamic output impedance 0.08 Ω (Typ.). ¾ Trimmed bandgap design up to + 0.5%. ¾ ESD rating is 6KV(Per MIL-STD-883D). ¾ RoHS Compliant and 100% Lead (Pb)-Free. Application ¾ Linear Regulators ¾ Adjustable Supplies ¾ Switching Power Supplies ¾ Battery Operated Computers ¾ Instrumentation ¾ Computer Disk Drives Block Diagram Vref Ref Cathode Anode Symbol Diagram Cathode Ref Anode

All contents are subject to change without prior notice. Pin Configuration SOT-23-3 SOT-23-3L (SC59-3L) SOT-23-3 (Order as SE431DS) SOT-23-5L SOP-8 TO-92 (Top View) SOT-89 Marking Information Package Marking Production Batch Number Lead-Free Package SOT-23-3 SC59-3L 431x SOT-23-3 431Sx (SE431DS) SOT-23-5L 431 x The last character is the batch number. Lead-free package is indicated by a dot on top of the last character. SOP-8 SE431 XXXX-LF SOT-89 SE431 XXXX-LF TO-92 SE431 XXXX-LF XXXX is the batch number. Lead-free package is indicated by LF after XXXX.

All contents are subject to change without prior notice. Absolute Maximum Ratings Parameter Symbol Maximum Units Cathode Voltage V KA 18 V Continuous Cathode Current I KA 80 mA Reference Current I REF 1 mA Operating Junction Temperature Range T J -40 to 85 °C Storage Temperature Range T STG -65 to 150 °C 120 (SOT-89) 230 (SOT-23-3) 230 (SOT-23-5L) 150 (SOP-8) Thermal Resistance θ JA 220 (TO-92) °C/W Lead Temperature (Soldering) 10 seconds T LEAD 260 °C

Electrical Characteristics

TA=25℃, unless otherwise specified. PARAMETER SYMBOL TEST CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT 0.5% 2483 2495 2507 1% 2470 2495 2520Reference Voltage VREF 1 VKA = VREF, IKA = 10mA 2445 2495 2545 mV Deviation of reference voltage over full temperature range VI(dev) 1 VKA = VREF, IKA = 10mA TA = -40°C to 85°C -- -14 -- mV Ratio of change in reference voltage to the change in cathode voltage REF KA V V Δ Δ IKA = 3mA, ΔVKA = 10 V - VREF -- 0.2 2.7 mV/V Reference current IREF 2 IKA = 10mA, R1=10kΩ, R2 = ∞ -- 0.3 4 μA Deviation of Reference current over full temperature range II(dev) 2 IKA = 10mA, R1=10kΩ, R2 = ∞, TA = -40°C to 85°C -- -0.13 -- μA Minimum cathode current for regulation IMIN 1 VKA = VREF -- 0.15 0.3 mA Off-state cathode current IOFF 3 VKA = 18V, VREF = 0 -- 0.4 1 μA Dynamic impedance ZKA 1 IKA = 1mA to 80mA, V KA = VREF, f ≤ 1kHZ -- 0.08 0.7 Ω

All contents are subject to change without prior notice. Reference Voltage VS Junction Temperature 2.4 2.42 2.44 2.46 2.48 2.5 2.52 2.54 2.56 2.58 2.6 - 5 0 - 2 50 2 55 07 51 0 0 Junction Temperature (℃) Reference Voltage (V) Typical Performance Characteristics CATHODE CURRENT Vs. CATHODE VOLTAGE Cathode Current (mA) Cathode Voltage (V) -100 -75 -50 -25 -2 -1 0 1 2 3 VKA = Vref TA = 25oC Cathode Current VS. Cathode Voltage -200 200 400 600 800 1000 1200 -1 0 1 2 3 Cathode Voltage (V) Cathode Current (uA) VKA=Vref TA=25℃

All contents are subject to change without prior notice. Test Circuits V Vref Input KA IKA V Vref Input KA I KA Iref = Vref (1+VKA ) + Iref x R1 VInput KA I off Test Circuit 1: VKA = VREF Test Circuit 2: VKA > VREF Test Circuit 3: Off State Current Application Diagram Thermal Consideration Package Power Rating (TA=25°C) Power Rating (TA=50°C) Power Rating (TA=70°C) SOT-23-3 (θJA=230°C/W) 435mW 326mW 239mW SOT-23-5L (θJA=230°C/W) 435mW 326mW 239mW TO-92 (θJA=220°C/W) 455mW 341mW 250mW 1. Maximum junction temperature is 125°C 2. θJA is measured with packages mounted onboard under still-air condition with 1W power applied. 3. Power rating is calculated using PD = (TJ – TA) /θJA, where TJ denotes junction temperature and TA denotes ambient temperature.

All contents are subject to change without prior notice. OUTLINE DRAWING SOT-23-3 B C A D E F J G H K L MIN MAX MIN MAX A 0.110 0.120 2.80 3.04 B 0.047 0.055 1.20 1.40 C 0.083 0.104 2.10 2.64 D 0.035 0.040 0.89 1.03 E 0.070 0.080 1.78 2.05 F 0.018 0.024 0.45 0.60 G 0.015 0.020 0.37 0.51 H 0.0005 0.004 0.013 0.10 J 0.034 0.040 0.887 1.02 K 0.003 0.007 0.085 0.18 L -0 . 0 2 7 - 0 . 6 9 DIMN INCHES MM DIMENSIONS OUTLINE DRAWING SOT-23-5L B K A F D E C H J MIN MAX MIN MAX A 0.110 0.120 2.80 3.05 B 0.059 0.070 1.50 1.75 C 0.036 0.051 0.90 1.30 D 0.014 0.020 0.35 0.50 E - 0.037 - 0.95 F - 0.075 - 1.90 H - 0.006 - 0.15 J 0.0035 0.008 0.090 0.20 K 0.102 0.118 2.60 3.00 DIMN INCHES MM DIMENSIONS OUTLINE DRAWING SC59-3L (SOT-23-3L) E e1B A L1 C L Q D H SC 59-3L MIN MAX MIN MAX A 0.035 0.043 0.90 1.10 A1 0.0004 0.005 0.01 0.13 B 0.012 0.020 0.30 0.50 C 0.004 0.008 0.09 0.20 D 0.110 0.122 2.80 3.10 H 0.098 0.122 2.50 3.10 E 0.059 0.067 1.50 1.70 e L1 0.008 0.022 0.20 0.55 L 0.014 0.031 0.35 0.80 Q 0℃ 10℃ 0℃ 10℃ DIMENSIONS DIMN INCHE MM 0.037REF 0.95REF 0.075REF 1.90REF

All contents are subject to change without prior notice. OUTLINE DRAWING SOP-8 4 5 H E D A B C MIN MAX MIN MAX A 0.0532 0.0688 1.35 1.75 A1 0.0040 0.0098 0.10 0.25 B 0.0130 0.0200 0.33 0.51 C 0.0075 0.0098 0.19 0.25 D 0.1890 0.1968 4.80 5.00 H 0.2284 0.2440 5.80 6.20 E 0.1497 0.1574 3.80 4.00 DIMENSIONS 0.050 BSC 1.27 BSC DIMN INCHES MM OUTLINE DRAWING TO-92 A B D E G F H K J M I NM A XM I NM A X A 0.175 0.205 4.445 5.207 B 0.170 0.210 4.318 5.334 E 0.500 0.610 12.70 15.50 F 0.016 0.021 0.407 0.533 G 0.045 0.055 1.143 1.397 H 0.095 0.105 2.413 2.667 J 0.080 0.105 2.032 2.667 K 0.125 0.165 3.175 4.191 DIMN INCHES MM DIMENSIONS OUTLINE DRAWING SOT-89 A B C D EF G H I J K L M SOT-89 MIN MAX MIN MAX A 0.173 0.181 4.400 4.600 B 0.159 0.167 4.050 4.250 C 0.067 0.075 1.700 1.900 D 0.051 0.059 1.300 1.500 E 0.094 0.102 2.400 2.600 F 0.035 0.047 0.890 1.200 G H I 0.016 0.020 0.400 0.520 J 0.055 0.063 1.400 1.600 K 0.014 0.016 0.350 0.410 L M DIMN INCHES MM DIMENSIONS 0.70REF 10°TYP 0.028REF 10°TYP 3.00REF 1.50REF 0.118REF 0.059REF

All contents are subject to change without prior notice. Customer Support Seaward Electronics Incorporated – China Section B, 2nd Floor, ShangDi Scientific Office Complex, #22 XinXi Road Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Seaward Electronics Corporation – Taiwan 2F, #181, Sec. 3, Minquan East Rd, Taipei, Taiwan R.O.C Tel: 886-2-2712-0307 Fax: 886-2-2712-0191 Seaward Electronics Incorporated – North America 1512 Centre Pointe Dr. Milpitas, CA95035, USA Tel: 1-408-821-6600 Last Updated - 12/4/2008