EC50431S E-CMOS | Alldatasheet
Document overview
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Technical content
Features
Programmable Precise Output Voltage from VREF to36V. Very Accurate Reference Voltage: 0.5% Typical High Stability under Capacitive Load Sink Current Capacity from 1 mA to 100 mA Low Output Noise Wide Operating Range of -40℃ to 85℃ Available in RoHS Compliant Packages.
Applications
Figure1. Package Types of EC50431S Voltage Adapter Switching Power Supply Graphic Card Precision Voltage Reference
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 2 of 11 5D23N Rev, F001 Functional Block Diagram (Typical Applications) Figure2. Functional Block Diagram of EC50431S Pin configuration Figure3. Pin Configuration of EC50431S (Top View)
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 3 of 11 5D23N Rev, F001 Absolute maximum ratings (Note 1) Parameter Symbol Value Unit Cathode Voltage VKA 36 V Cathode Current Range (Continuous) IKA -10~+100 mA Reference Input Current IREF 10 mA Junction Temperature TJ +150 ℃ Storage Temperature Range TSTG -65 ~ +150 ℃ Package Thermal Impedance θJC 214 ℃/W Package Thermal Impedance θJA 405 ℃/W Power Dissipation, TA=25℃ PD 0.309 W Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are Stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability Recommended Operating Conditions Parameter Symbol Min Max Unit Cathode Voltage VKA VREF 36 V Cathode Current IKA 1.0 100 mA
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 4 of 11 5D23N Rev, F001 Operating Conditions: TA=25℃ unless otherwise specified. Parameter Test Circuit Symbol Conditions Min Typ Max Unit Reference Voltage 0.5% 4 VREF VKA=VREF, IKA=10mA 2.483 2.500 2.507 V Deviation of Reference Voltage Over-Temperature △ VREF VKA=VREF IKA= 10mA 4.5 mV Ratio of Change in Reference Voltage to the Change in Cathode Voltage △ VREF/△ VKA IKA=10mA △ VKA = 10V to VREF -1.1 -2.7 mV / V △ VKA = 10V to 36V -1.1 -2.0 Reference Current IREF IKA=10mA,R1=10KΩ, R2=∞ 1.5 μA Deviation of Reference Current Over Full Temperature Range △ IREF/△T IKA=10mA, R1=10 KΩ R2= 0.4 1.2 μA Minimum Cathode Current for Regulation IKA (MIN) VKA=VREF 0.45 1.0 mA Off-State Cathode Current IKA (OFF) VKA=36 V, VREF=0 0.05 1.0 μA Dynamic Impedance ZKA VKA=VREF, IKA=1 to 100mA, f≦1.0KHz 0.15 0.5 Ω
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 5 of 11 5D23N Rev, F001 Electrical Characteristics (Continued)
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 6 of 11 5D23N Rev, F001 Ordering Information for 36V Products Marking Information Package Voltage Tolerance Part Number Marking Production Year /Week Code GREEN Package SOT-23-3 0.5% EC50431SAN-BG 431S YYWW YY is the year of production. 09 means the product is manufactured in year of 2009. WW is the week of production. 25 means the product is manufactured in the 25th week. Green package Package Temperature Range Voltage Tolerance Part Number SOT-23-3 -40 to 85℃ 0.50% EC50431SAN-BG
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 9 of 11 5D23N Rev, F001 Typical Applications
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 10 of 11 5D23N Rev, F001 Typical Applications (Continued)
ADJUSTABLE PRECISION SHUNT REGULATORS E-CMOS Corp. (www.ecmos.com.tw) Page 11 of 11 5D23N Rev, F001 Mechanical Dimensions Outline Dimensions: SOT-23-3 DIMENSIONS DIMN MM DIMN MM MIN MAX MIN MAX A - 1.45 L 0.30 0.60 A1 - 0.15 L1 0.6 REF A2 0.9 1.30 L2 0.25BSC b 0.30 0.50 R 0.10 - c 0.08 0.22 R1 0.10 0.25 D 2.80 3.00 θ 0° 8° E 2.60 3.00 θ1 5° 15° E1 1.50 1.70 e 0.95BSC e1 1.90BSC