Production specification BL431 Programmable Shunt Regulator FEATURES z Pb Programmable output voltage to 36 volts z Lead-free Low dynamic output impedance 0.20 typical z Sink current capability of 1.0 to 100mA z Equivalent full-range temperature coefficient of 50ppm/℃ typical z Temperature compensated for operation over full rated Operating temperature range z Low output noise voltage z Fast turn-on response SOT-23 ORDERING INFORMATION Type No. Marking Package Code 431 SOT-23 BL431 MAXIMUM RATING @ Ta=25℃ unless otherwise specified Symbol limits unit Cathode Voltage VKA 37 V Cathode current Range(Continuous) IKA -100 to +150 mA Reference Input Current Range IREF 0.05 to 10 mA PD 350 mW Thermal Resistance Junction–to–Ambient RθJA 350 ℃/W Thermal Resistance, Junction–to–Case RθJC 155 ℃/W TJ 150 ℃ Operating temperature Range TOPR -25 to + 105 ℃ Storage temperature Range TSTG -65 to +150 ℃ Parameter Power dissipation Operating Junction Temperature Recommended Operating Conditions Parameter symbol Min Typ Max Unit Cathode Voltage VKA VREF - 36 V Cathode Current IKA 1.0 - 100 mA C171 Rev.A www.gmicroelec.com 1 Production specification BL431 Programmable Shunt Regulator ELECTRICAL CHARACTERISTICS @ Ta=25℃ unless otherwise specified Parameter symbol conditions Min. Typ. Max. unit Reference Input voltage VREF VKA=VREF,IKA=10mA 2.44 2.5 2.55 V Deviation of Reference Input Voltage Over-Temperature ∆VREF/ ∆T VKA=VREF,IKA=10mA, TMIN≤TA≤TMAX 4.5 17 mV Ratio of Change in Reference Input Voltage to the Change in Cathode Voltage ∆VREF/ ∆VKA IKA= 10mA -10 -2.7 Reverse Input current IREF Deviation of Reference Input Currrent Over Full Temperature Range ∆VKA=10V-VREF mV/V -0.5 -2.0 IKA=10mA, R1=10KΩ,R2=∞ 1.5 4 μA ∆IREF/∆T IKA=10mA, R1=10KΩ,R2=∞ TA=Full Range 0.4 1.2 μA Minimun Cathode Current for Regulation IKA(MIN VKA= VREF 0.45 1.0 mA Off-Stage Cathode Current IKA(OFF) VKA=36V, VREF=0 0.05 1.0 μA ZZA VKA= VREF, IKA=1 to 100mA f≥1.0KHz 0.15 0.5 Ω Dynamic Impedance ∆VKA=36V-10V •TMIN=-25℃,TMAX=+85℃ CLASSIFICATION OF Vref Rank 0.5% 1% 2% Range 2.488-2.512 2.475-2.525 2.450-2.550 C171 Rev.A www.gmicroelec.com 2 Production specification Programmable Shunt Regulator BL431 TYPICAL CHARACTERISTICS @ Ta=25℃ unless otherwise specified C171 Rev.A www.gmicroelec.com 3 Production specification BL431 Programmable Shunt Regulator PACKAGE OUTLINE Plastic surface mounted package SOT-23 SOT-23 A E K B J D G Dim Min Max A 2.70 3.10 B 1.10 1.50 C 1.0 Typical D 0.4 Typical E 0.35 0.48 G 1.80 2.00 H 0.02 0.1 J C H K 0.1 Typical 2.20 2.60 All Dimensions in mm C171 Rev.A www.gmicroelec.com 4 Production specification Programmable Shunt Regulator BL431 SOLDERING FOOTPRINT 0.95 0.95 2.00 0.90 Unit : mm 0.80 PACKAGE INFORMATION Device Package Shipping BL431 SOT-23 3000/Tape&Reel C171 Rev.A www.gmicroelec.com 5