KEEL ssemconvucror |K1A431/F/A/AF/B/BF TECHNICAL DATA BIPOLAR LINEAR INTEGRATED CIRCUIT PROGRAMMABLE PRECISION REFERENCES B Cc The KIA431/F/A/AF/B/BF integrated circuits are three- terminal programmable shunt regulator diodes. These monolithic IC voltage reference operate as a low temperature coefficient zener * which is programmable from Vrer to 36 volts with two external resistors. t a No [one MunETERs These devices exhibit a wide operating current range of 1.0 to 100mA x _ lS ~a8 170 we with a typical dynamic impedance of 0.22. The characteristics of D . 3.70 MAX these references make them excellent replacements for zener diodes in : 100 many applications such as digital voltmeters, power supplies, and op = = amp circuitry. The 2.5 volt reference makes it convenient to obtain x atts a stable reference from 5.0 volt logic supplies, and since the K 0.55 MAX KIA431/F/A/AF/B/BF operates as a shunt regulator, it can be used as either a positive or negative voltage reference. N 1.00 FEATURES 1. REFERENCE * Programmable Output Voltage to 36 Volts. 2, ANODE 3. CATHODE ITEM Vref Tolerance (%) KIA431/F 22 TO-92 KIA431A/AF 1.0 * KIA431B/BF 0.5 Note) * : Under development A c * Low Dynamic Output Impedance : 0.229 (Typ.). | _ : * Sink Current Capability of 1.0 to 100mA. * Equivalent Full-Range Temperature Coefficient ie a of 50ppm/C (Typ.). 1 bia | _SOTAMETERS - Temperature Compensated for Operation Over Full Rated p+! 4 i Lot B | 2.5050.20 Operating Temperature Range. x . ae * Low Output Noise Voltage. y |r 5 =o F 1.504 0.10 MARKING G 0.40 TYP H . 7 [arene Type No. Marking K 0540.16, KIA431F 3A 1. REFERENCE KIA431AF 3B 2. ANODE 3. CATHODE KIA431BF 3C SOT89 MAXIMUM RATINGS (Full operating ambient temperature range applies unless otherwise noted.) CHARACTERISTIC SYMBOL RATING UNIT Cathode To Anode Voltage Vika 37 Vv Cathode Current Range, Continuous Ik -100 ~ 150 mA Reference Input Current Range, Continuos Tret -0.05~10 mA Operating Junction Temperature Tj 150 Operating Temperature Topr -40~85 Cc Storage Temperature Tstg -65~ 150 Cc KIA431/A/B 700 Total Power Dissipation Pp mW KIA431F/AF/BF 800 2001. 1. 3 Revision No : 6 KEL 1/6KIA431/F/A/AF/B/BF BLOCK DIAGRAM Po 4 | | Reference O+__ O Cathode (R) | | (K) Cathode | | (K) | | Reference | | (R) a & Anode(A) Anode(A) ELECTRICAL CHARACTERISTICS (Ta=25T) CHARACTERISTICS SYMBOL _TES q TEST CONDITION MIN. TYP. | MAX. | UNIT CIRCUIT KIA431/F 2.440 2.495 2.550 Vv Relerence Input KIA431A/AF | Veer | Figure 1 | Via=Veer , Ix=10mA 2470 | 2.495 | 2.520 | V Voltage KIA431B/BF 2.4825 | 2.495 | 2.5075 Vv Reference Input Voltage Ficure 1 Deviation Over Temperature A Veet 8 Vea=Vret , Ik=lOmA - 7.0 30 mV (Note 1) Range Ratio of Change in AVKA= _ 1A 97 Reference Input Voltage to AV re8/ Figure 2) Ic=10mA LOV ~ Veer : mvV/V Change in Cathode to AVea | AVKa= - | -10 | -20 Anode Voltage 36V ~10V : . Reference Input Ta=25C Ik=l0mA, RI=10kQ, - 18 4.0 5 Tree Figure 2 LA Current Ta=Topr R2=00 _ _ 65 Reference Input Current _ _ Deviation Over Temperature A Tver Figure 2 es R1=10kQ, _ 08 25 uA Range Minimum Cathode : _ _ E Current For Regulation Toni Figure 1) Vica>Vrer 0.9 10 mA Off-State Cathode Current Tote Figure 3 | Vxa=36V, Vice=OV - 2.6 1000 nA os Figure 1 | Vra=Vret, Ik=l1.0~100mA, _ _ Dynamic Impedance Zia (Note 2) | f<1.0kHz 0.22 2001. 1.3 Revision No : 6 KEL 2/6KIA431/F/A/AF/B/BF FIGURE 1TEST CIRCUIT FOR Vya = Veet Input O~vwn\_*_O V KA 1 Vret FIGURE 2-TEST CIRCUIT FOR VKa> Vref Input O~vwe_O V > | Ix KA R1 VKA= Vret (1+R5) +! ref XR Note 1: The deviation parameter AVrer is defined as the differences between the maximum and minimum values obtained over the full operating ambient temperature range that applies. Vret Max.-___-_-___ AVret = Vref (Max.) _ ref (Min.) Vret Min. T1 Te AMBIENT TEMPERATURE The average temperature coefficient of the Reference input voltage, @Vree ,is defined as: AV vet () x 10 ppm Veer at 25C OV ver ( ) = Cc Ava AVret X 10 ATalVire: at 25C) @ Vice can be positive or negative depending on whether Vice Min. or Vice Max. occurs at the lower ambient temperature. FIGURE 3TEST CIRCUIT FOR I ose Input Ovww*e_O0 V Example : AViee = 8.0mV and slope is positive, Vrer at 25C =2.495V, ATa=70'C 0.008x10 @ Vret= . = 45.8 ppm/C 70x (2.495) Note 2: The dynamic impedance Zx, is defined as: AVKA | Zeal = Alk When the device is programmed with two external resistors, Rl and R2, (refer to Figure 2) the total dynamic impedance of the circuit is defined as: RL Za = Zxa (1+) Zia! = | Zeal RD 2001. 1. 3 Revision No : 6 KEC 3/6KTA431/F/A/AF/B/BF Ix Vxa = 150 => 800 100 [y=1.0mA~1 aK = Ta=25 C 3 > oO 6 A 4 Ay Be 10 me 1a > S eX fe] a mf oN z= = 1.0 a Z os 3 Z < a 0.1 ) 10 20 30 40 1.0k 10k 100k 1.0M 10M CATHODE VOLTAGE Vga (V) FREQUENCY f (Hz) Gyo f PULSE RESPONSE Zz Ta=25 C <= oO ~ a = & 5 OUTPUT a) 2 5 & Bo oO Q a 3 a > INPUT OQ oO 1.0k 10k 100k 1.0M 10M 0 4.0 8.0 12 16 20 FREQUENCY f (Hz) TIME t (us) 2001. 1. 3 Revision No : 6 KEC 4/6KTA431/F/A/AF/B/BF 900 800 700 600 500 400 300 200 100 0 KIA431F/AF/BF KIA431/A/B 0 20 50 75 100 125 150 175 ALLOWABLE POWER DISSIPATION Pp (mW) AMBIENT TEMPERATURE Ta (C) 2001. 1. 3 Revision No : 6 KEC 5/6KIA431/F/A/AF/B/BF PRECAUTION FOR USE SOLDERING Flat Package (SOT-89 Package) Elements mounting styles of electronic devices are gaining in further diversification over recent years, and needs for components are all the more expanding in varieties. Especially, surface mounting is steadily penetrating into industrial segments as a world-wide popular technical trend. Although exposure to high temperature is inevitable during soldering we recommend limiting the soldering temperature to low levels as shown in figure for the sake of retaining inherent excellent reliability. 240 wo BR oO 150 Atomospheric temperature(C) resin suface temperature |. | Time (sec.) Within 30 sec. Fig 6 (a) When employing solder reflow method @ Atmospheric temperature around resin surfaces must be less than 240C, not exceeding the time length of 10 sec. ( Recommend temperature profile @ Precautions on heating method When resin in kept exposed to high temperature for a long time, device reliability may be marred. Therefore, it is essential to complete soldering in the shortest time possible to prevent temperature of resin from rising. (b) When employing halogen lamps or infrared-ray heaters When halogen lamps or infrared-ray heaters are used, avoid direct irradiation onto resin surfaces; such devices cause extensive localized temperature rise. * Please keep a reflow solder operating when SOT-89 packages soldering. 2001. 1. 3 Revision No : 6 KEC