SLF431xSF Semiconductor Programmable Voltage Reference Features • • • • • • • Programmable output voltage to 36 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 Voltage reference tolerance : ± 1.0% (Ta=25℃) Ordering Information Type NO. Marking SLF431xSF 41□ Package Code SOT-23F □: Grade => B : ±0.5%, A : ±1.0% Outline Dimensions unit : mm Symbol 2.4±0.1 1.6±0.1 1.90 BSC Functional block diagram 0.9±0.1 0.15±0.05 2 0.4±0.05 3 0~0.1 2.9±0.1 1 PIN Connections 1. Reference 2. Cathode 3. Anode KSI-2058-000 1 SLF431xSF Absolute maximum ratings (Operating ambient temperature range applies unless other specified) Parameter Symbol Ratings Unit Cathode to Anode voltage VKA 37 V Cathode current range IKA -100 ~+150 mA Reference input current range Iref -0.05~+10 mA Power dissipation PD* 300 mW Operating temperature range Topr -40~+85 °C Storage temperature range Tstg -65~+150 °C * With PCB(8×8mm copper area) at glass epoxy board(t=1.7mm, area : 20×20mm) Recommended operating conditions Parameter Ratings Symbol Min. Max. Unit Cathode to Anode voltage VKA Vref 36 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) Min. Typ. Max. VKA=Vref, SLF431BSF IKA=10mA SLF431ASF VKA=Vref , IKA=10mA @Ta=TLOW to THIGH IKA=10mA ∆VKA=10V-Vref ∆VKA=36V-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 VKA=Vref - 0.35 1.0 mA IOFF VKA=36V, Vref=0V - 2.7 1000 nA ZKA VKA=Vref, f≤1.0KHz IKA=1.0mA-100mA - 0.14 0.5 Ω 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) Off-state cathode current(Fig. 3) Dynamic impedance(Fig. 1, Note 3) Fig. 1 Condition ∆Iref IMIN Fig. 2 Unit Fig. 3 <Note 1> : TLOW=-40°C, THIGH=+85°C , <Note 2> : ∆Vref= Vref Max. - Vref Min. , <Note 3> : ZKA= ∆VKA/ ∆IKA KSI-2058-000 2 SLF431xSF Characteristic diagrams Fig. 4 IKA vs. VKA Fig. 5 IMIN vs. VKA Fig. 6 ∆V ref vs. Ta Fig. 7 ∆Vref vs. VKA Fig. 8 Gv vs. frequency Fig. 9 Pulse reponse KSI-2058-000 3 SLF431xSF 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-2058-000 4