SJ432B

SJ432xx Programmable Voltage Reference Description The SJ432 series are 3-terminal precision shunt regulators that are programmable over a wide voltage range of 1.24V to 16V with ±0.5%, ±1.0% tolerance. The SJ432 series have a low dynamic impedance of 0.25Ω. These features make the SJ432 series an excellent replacement for zener diodes in numerous applications circuits that require a precision reference voltage. Features • Programmable output voltage from 1.24V to 16V • Voltage reference tolerance : ±0.5%, ±1.0% • Cathode current capability of 80 ㎂ to 30mA • High quality ESD protected : ESD rating – Typ. 4kV(HBM Mode) – Typ. 400V(MM Mode) ◈ Pin Assignment (Top View) (Marking Side View) (Marking Side View) R K A RA K PKG : SOT-23 Apply Device : SJ432xS A R NC NC K PKG : TO-92 Apply Device : SJ432x RAK PKG : TO-92M Apply Device : SJ432xM PKG : SOT-25 Apply Device : SJ432xN [ K : Cathode, A: Anode, R : Reference ] 1 KSD-I0A016-001 SEPT. 2010 Rev01 SJ432xx Symbol Functional block diagram Cathode(K) Reference(R) + - VREF =1.24V Anode(A) ◈ Ordering Information Vref Tolerance PKG Type TO-92 ±1% TO-92M SOT-23 SOT-25 TO-92 ±0.5% TO-92M SOT-23 SOT-25 Note 1) □ : Year & Week Code Device Name SJ432A SJ432AM SJ432AS SJ432AN SJ432B SJ432BM SJ432BS SJ432BN Marking SJ432A SJ432A 2GA□1) 2NA□1) SJ432B SJ432B 2GB□1) 2NB□1) KSD-I0A016-001 SEPT. 2010 Rev01 2 SJ432xx Absolute maximum ratings Characteristic Cathode to Anode voltage Cathode current Reference input current SOT-23(Note1) Power Dissipation TO-92M(Note2) SOT-25(Note1) TO-92(Note2) Junction Temperature Operating temperature range Storage temperature range TJ Topr Tstg PD [Ta=25℃] Symbol VKA IK Iref Rating 20 30 3 350 400 400 625 150 -40 ~ +85 -55 ~ +150 Unit V mA mA mW mW mW mW ℃ ℃ ℃ Note 1 : Mounted on a glass epoxy PCB board (20 × 20mm).TA=25℃ Note 2 : TA=25℃ Recommended operating conditions Characteristic Cathode to Anode voltage Cathode current Symbol VKA IK Rating Min. Vref 0.1 Max. 18 25 Unit V mA Electrical Characteristics (Ta=25℃, unless otherwise noted.) Characteristic Reference voltage (Fig.1) Reference input voltage deviation over temperature (Fig.1, Note1,2) Ratio of delta reference input voltage to delta cathode voltage (Fig.2) Reference current (Fig.2) Reference input current deviation over temperature (Fig.2, Note 1,2) Minimum cathode current for regulation Off-state cathode current (Fig.3) Dynamic impedance (Fig.1, Note3) Symbol Vref ΔVref ΔVref ΔVKA Iref ΔIref IK(MIN) IK(off) ZKA Condition VKA=Vref, IK=10mA VKA=Vref, IK=10mA @ -40˚C ≤ Ta ≤ 85˚C IK=10mA Vref ≤ VKA ≤ 16V IK=10mA R1=10KΩ, R2=∞ IK=10mA R1=10KΩ, R2=∞ @ -40˚C ≤ Ta ≤ 85˚C VKA=Vref VKA=16V, Vref=0V VKA=Vref, f ≤ 1.0KHz 0.1mA ≤ IK ≤ 25mA △Vref=Vref (16V)-Vref △VKA=VKA(16V)-Vref Min. Typ. 1.234 1.228 1.240 10 -1.0 1.0 0.04 55 5 0.25 Max . 1.246 1.252 20 -2.7 1.5 0.08 80 50 0.4 Unit V mV mV/V μΑ μΑ μΑ nA Ω SJ432Bx SJ432Ax KSD-I0A016-001 SEPT. 2010 Rev01 3 SJ432xx Fig. 1 Test circuit for VKA=Vref Fig. 2 Test circuit for VKA>Vref Fig. 3 Test circuit for IK(off) Input IK VKA Input R1 R2 IK Iref VKA Input VKA IK(off) V KA = V ref × (1 + R1 ) + I ref × R 1 R2 Note. 1. Ambient temperature range: TLOW = -40℃, THigh = 85℃ 2. The deviation parameters △Vref and △Iref are defined as the difference between the maximum value and minimum value obtained over the full operating ambient temperature range that applied. ∆Vref = Vref Max – Vref Min ∆Ta = T2 – T1 A mbient Temperature The average temperature coefficient of the reference input voltage, αVref is defined as: ΔV ref × 10 6 ) ppm V ref (T a = 25℃) )= α V ref ( ℃ ΔT a ( αVref can be positive or negative depending on whether Vref Min or Vref Max occurs at the lower ambient temperature, refer to Fig. 8 Example : △Vref = 10mV and the slope is positive, △Vref @ 25℃ = 1.24V △Ta = 125℃ 0.010 ( ) × 10 6 ppm 1.241 αVref ( )= = 65ppm / ℃ ℃ 125 3. The dynamic impedance ZKA is defined as: Ζ KA = ΔVKA ΔI K When the device is operating with two external resistors, R1 and R2, (refer to Fig.2) the total dynamic impedance of the circuit is given by: Ζ KA ' = Ζ KA × (1 + R1 ) R2 KSD-I0A016-001 SEPT. 2010 Rev01 4 SJ432xx Electrical Characteristics Curves (Continue) Fig.4 IK vs VKA (1) 30 300 Fig.5 IK vs VKA (2) VKA=Vref Ta=25°C VKA=Vref Cathode current IK [mA] 20 Ta=25°C Cathode current IKA [μA] 250 200 150 100 50 10 0 0 -10 -10 -1 -0.5 0 0.5 1.0 1.5 2.0 -50 -1 -0.5 0 0.5 1.0 1.5 2.0 Cathode Voltage VKA [V] Fig.6 I K(off) vs VKA Vref=0V, Ta=25°C cathode voltage ΔVref /ΔVKA [mV/V] 0.4 Cathode Voltage VKA [V] Fig.7 ΔVref/ΔVKA vs Ta Ratio of delta reference input voltage to delta 0.0 Off-state cathode current IK(off) [μA] Vref ≤ VKA ≤ 16V, IK=10mA -0.1 0.3 -0.2 0.2 -0.3 I 0.1 -0.4 0.0 0 4 8 12 16 20 -0.5 -50 -25 0 25 50 75 100 Cathode Voltage VKA [V] Fig.8 Vref vs Ta 1.30 500 Ambient Temperature Ta [˚C] Fig.9 PD vs Ta With PCB (8×8mm copper area) at glass epoxy board (area=20×20mm) / SOT-23 Reference input voltage Vref [V] VKA=Vref , IK=10mA 1.28 Power dissipation PD [mW] Vref(max) 1.26 400 300 Vref(typ) 1.24 200 1.22 Vref(min) 100 0 1.20 -50 -25 0 25 50 75 100 0 25 50 75 100 125 150 Ambient Temperature Ta [˚C] Ambient Temperature Ta [˚C] KSD-I0A016-001 SEPT. 2010 Rev01 5 SJ432xx Electrical Characteristics Curves Output ㎃ R1 IK CL R2 GND 0 Unstable Regions A, B A ㎌ VKA Vref 10V R1 [KΩ] 0 10 R2 [KΩ] ∞ 1.415 Fig.10 Stability Boundary Conditions Fig.11 Test circuit for Fig. 10 KSD-I0A016-001 SEPT. 2010 Rev01 6 SJ432xx ◈TO-92 Outline Dimension(mm) KSD-I0A016-001 SEPT. 2010 Rev01 7 SJ432xx ◈ TO-92M Outline Dimension (unit : mm) KSD-I0A016-001 SEPT. 2010 Rev01 8 SJ432xx ◈ SOT-23 Outline Dimension (unit : mm) ※ Recommend PCB solder land [Unit: mm] KSD-I0A016-001 SEPT. 2010 Rev01 9 SJ432xx ◈ SOT-25 Outline Dimension (unit : mm) ※ Recommend PCB solder land [Unit: mm] KSD-I0A016-001 SEPT. 2010 Rev01 10 SJ432xx The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. 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, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I0A016-001 SEPT. 2010 Rev01 11