A431xM Semiconductor Programmable Voltage Reference Features • • • • • • Programmable output voltage to 20 volts Sink current capability of 1.0mA to 100mA Low dynamic impedance 0.15Ω 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. Marking A431xM A431□ Package Code TO-92M □: Grade => B :±0.5% , A :±1% Outline Dimensions unit : mm Symbol 3.0±0.1 4.0±0.1 0.44 REF 14.0±0.40 0.52 REF Functional block diagram 1.27 Typ. 2.54±0.1. 3.0±0.1 3.8 Min. 0.42 Typ. 0.7 Typ. 1 2 3 PIN Connections 1. Reference 2. Anode 3. Cathode KSI-9039-003 1 A431xM Absolute maximum ratings (Operating ambient temperature range applies unless other specified) Parameter Symbol Ratings Unit Cathode to Anode voltage VKA 20 V Cathode current range IKA -100 ~+150 mA Reference input current range Iref -0.05~+10 mA Power dissipation PD 500 mW Operating temperature range Topr -40~+85 °C Storage temperature range Tstg -65~+150 °C Recommended operating conditions Parameter Symbol Ratings Min. Max. Unit Cathode to Anode voltage VKA Vref 18 V Cathode current range IKA 1.0 100 mA Electrical Characteristics (Ambient temperature at 25°C, unless otherwise noted.) Parameter Symbol 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) Vref ∆Vref ∆Vref ∆VKA Reference input current(Fig. 2) Iref Deviation of reference input current over temperature(Fig. 2) Minimum cathode current for Regulation(Fig. 1) ∆Iref Condition Min. Typ. Max. Unit A431BM VKA=Vref, IKA=10mA A431AM VKA=Vref , IKA=10mA @Ta=TLOW to THIGH IKA=10mA ∆VKA=10V-Vref ∆VKA=20V-10V IKA=10mA R1=10KΩ, R2=∞ IKA=10mA R1=10KΩ, R2=∞ 2.482 2.470 2.495 2.508 2.520 V - 7.0 30 mV - 1.2 0.7 2.7 2.0 mV/V - 1.8 4.0 µA - 0.4 2.5 µA IMIN VKA=Vref - 0.35 1.0 mA Off-state cathode current(Fig. 3) IOFF VKA=20V, Vref=0V - 2.7 1000 nA Dynamic impedance(Fig. 1, Note 3) ZKA VKA=Vref, f≤1.0KHz IKA=1.0mA-100mA - 0.14 0.5 Ω Fig. 1 Fig. 2 Fig. 3 <Note 1> : TLOW=-40°C, THIGH=+85°C , <Note 2> : ∆Vref= Vref Max. - Vref Min. , <Note 3> : ZKA= ∆VKA/ ∆IKA KSI-9039-003 2 A431xM Characteristic diagrams Fig. 4 IKA vs. VKA Fig. 6 ∆V ref vs. Ta Fig. 5 IMIN vs. VKA Fig. 7 Gv vs. frequency Fig. 8 Pulse response KSI-9039-003 3 A431xM 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-9039-003 4