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| Semiconductor A431xSF Programmable Voltage Reference Features * * * * * * Programmable output voltage to 20 volts Sink current capability of 1.0mA to 100mA Low dynamic impedance 0.15 typical Temperature compensated for operation over full rated operating temperature Equivalent full-range temperature coefficient of 50ppm/C (Typical) Low output Noise voltage Ordering Information Type NO. A431xSF Marking 43 : Grade => B : 0.5%, A : 1.0% Package Code SOT-23F Outline Dimensions Symbol 2.40.1 1.60.1 unit : mm 1 2.90.1 1.90 BSC 3 0.40.05 2 0.150.05 Functional block diagram 0.90.1 0~0.1 PIN Connections 1. Cathode 2. Reference 3. Anode KSI-2037-004 1 A431xSF Absolute maximum ratings (Operating ambient temperature range applies unless other specified) Parameter Cathode to Anode voltage Cathode current range Reference input current range Power dissipation Operating temperature range Storage temperature range Symbol VKA IKA Iref PD* Topr Tstg Ratings 20 -100 ~+150 -0.05~+10 300 -40~+85 -65~+150 Unit V mA mA mW C C * With PCB(8x8mm copper area) at glass epoxy board(t=1.7mm, area: 20x20mm) Recommended operating conditions Parameter Cathode to Anode voltage Cathode current range Symbol VKA IKA Ratings Min. Vref 1.0 Max. 18 100 Unit V mA Electrical Characteristics (Ambient temperature at 25C, unless otherwise noted.) Parameter Reference input voltage (Fig. 1, Note 1) Deviation of reference input voltage Over temperature(Fig. 1, Note 1,2) Ratio of change in reference input Voltage to the change in cathode Voltage(Fig. 2) Reference input current(Fig. 2) Deviation of reference input current over temperature(Fig. 2) Minimum cathode current for Regulation(Fig. 1) Off-state cathode current(Fig. 3) Dynamic impedance(Fig. 1, Note 3) Symbol Vref Vref Vref VKA Iref Iref IMIN IOFF ZKA Condition A431BSF VKA=Vref, IKA=10mA A431ASF VKA=Vref , IKA=10mA @Ta=TLOW to THIGH IKA=10mA VKA=10V-Vref VKA=20V-10V IKA=10mA R1=10K, R2= IKA=10mA R1=10K, R2= VKA=Vref VKA=20V, Vref=0V VKA=Vref, f1.0KHz IKA=1.0mA-100mA Min. 2.482 2.470 - Typ. 2.495 7.0 1.2 0.7 1.8 0.4 0.35 2.7 0.14 Max. 2.508 2.520 30 2.7 2.0 4.0 2.5 1.0 1000 0.5 Unit V mV mV/V A A mA nA Fig. 1 Fig. 2 Fig. 3 KSI-2037-004 2 A431xSF Characteristic diagrams Fig. 4 IKA vs. VKA Fig. 5 IMIN vs. VKA Fig. 6 V ref vs. Ta Fig. 7 Gv vs. frequency Fig. 8 Pulse response KSI-2037-004 3 A431xSF These AUK products are intended for usage in general electronic equipments(Office and communication equipment, measuring equipment, domestic electrification, etc.). Please make sure that you consult with us before you use these AUK products in equipments which require high quality and/or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, traffic signal, combustion central, all types of safety device, etc.). AUK cannot accept liability to any damage which may occur in case these AUK products were used in the mentioned equipments without prior consultation with AUK. KSI-2037-004 4 |
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