<Linear IC> RT9H301C/P/S Adjustable Precision Shunt Regulator 0.5 1.5 ② 1.5 0.4 0～0.1 3.9 Outline : SC-59 ①Reference voltage(VREF) ②Cathode(K) ③Anode(A) ●Source of reference voltage, such as a general electric device ●Secondary side control of a switching power supply ① 0.16 0.4 ③ ② 4.4 0.5 3.0 ① 1.6 0.4 ③ Outline : SC-62(SOT-89) ①Reference voltage(VREF) ②Anode(A) ③Cathode(K) RT9H301S 14.0 1.0 1.0 0.1 7.5MAX 3.0 4.0 0.45 2.5 ② ③ 2.5 ① 2.5 0.4 APPLICATION 2.4 1.0 2.5 1.5 0.8 ● Reference voltage: VREF=2.495V±1%(Ta=25℃) ● Adjustable output voltage: VREF to 36V ● Low output impedance: |ZKA|=0.2Ω(Typ.) ● Small package: SC-59,SC-62(SOT-89) RT9H301P 0.5 2.9 1.90 0.95 0.95 FEATURE RT9H301C 1.1 The RT9H301C/P/S is adjustable shunt regulator, which provides a highly accurate 1.0%. Output voltage can be set to any value between VREF and 36V with two external resistors. PIN CONFIGURATION ［UNIT：mm］ 13.0MIN DESCRIPTION Outline : TO-92S ①Cathode(K) ②Anode(A) ③Reference voltage(VREF) 111027 <Linear IC> RT9H301C/P/S Adjustable Precision Shunt Regulator EQUIVALENT SCHEMATIC K VREF A ABSOLUTE MAXIMUM RATINGS ( Ta=25℃, unless otherwise noted ) Symbol Parameter Ratings VKA Cathode voltage 37 IK Cathode current -100～100 IREF Reference input current -0.05～10 TJOPT Operating junction temperature ( Non condensing ) -40～+150 TSTG Storage temperature -55～+150 SC-59 Pd Power dissipation SC-62(SOT-89) TO-92S 200 500 600 Unit V mA mA ℃ ℃ mW mW mW RECOMMENDED OPERATING CONDITIONS ( Ta=25℃, unless otherwise noted ) Limits Symbol Parameter Unit Min. Max. VKA Cathode voltage VREF 36 V Cathode current 1.0 100 mA ＩK 111027 <Linear IC> RT9H301C/P/S Adjustable Precision Shunt Regulator ELECTRICAL CHARACTERISTICS ( Ta=25℃, unless otherwise noted ) Symbol VREF Parameter Test condition Min. 2.470 Limits Typ. Max. 2.495 2.520 Unit V Reference voltage VKA=VREF，IK=10mA ⊿ＶＲＥＦ/⊿Ｔａ Deviation of reference input voltage over temperature VKA=VREF，IK=10mA，Ta=-20～85℃ - - Ratio of VREF change in cathode voltage change ⊿VKA=VREF～10V，IK=10mA -2.7 -1.4 - mV/V ⊿ＶＲＥＦ/⊿VK ⊿VKA=10V～36V，IK=10mA -2 -1 - mV/V 30 mV Reference input current IK=10mA,R1=10K，R2=∞ - - 4 uA Deviation of reference input current over temperature IK=10mA,R1=10K，R2=∞, Ta=-20～85℃ - - 2.5 uA Ikmin Minimum cathode current for regulation VKA=VREF - 0.3 0.6 mA IOFF Off-state cathode current VKA=36V，VREF=0V - 0.1 1.0 uA |ZKA| Dynamic impedance VKA=VREF,IK=1～100mA，f<1.0KHz - 0.2 0.5 Ω IREF ⊿ＩＲＥＦ/⊿Ta PARAMETER MEASUREMENT INFORMATION (1)VKA=VREF (2)VKA＞VREF VO=VKA VIN VO=VKA VIN K R1 IRE A R2 VRE VREF K A VO=(1+R1/R2)・VREF (3)IOFF VO=VKA VIN K VREF A 111027 <Linear IC> RT9H301C/P/S Adjustable Precision Shunt Regulator <TYPICAL CHARACTERISTICS> Pd-Ta 2.60 RT 9H301S 600 Reference voltage VREF (V) Power dissipation Pd[mW] 700 VREF-Tj 500 400 RT 9H301P 300 RT 9H301C 200 100 2.58 2.56 IK=10 ｍA 2.54 IK=100 ｍA 2.52 2.50 2.48 IK=1 ｍA 2.46 2.44 2.42 2.40 0 0 25 50 75 100 125 Junction temperature T a (℃) -50 150 -25 0 25 50 75 100 Junction temperature T j (℃) IK-VKA （1） 150 1.0 Cathode current IK (mA) Cathode current IK (mA) 150 IK-VKA （2） 1.2 0.8 0.6 0.4 0.2 100 50 0 -50 -100 0.0 0 1 2 Cathode voltage VKA (V) -2 3 -1 0 1 2 Cathode voltage VKA (V) 3 IREF-Tj ⊿VREF-VKA 4.0 0 Reference input current IREF(uA) Deviation of reference input voltage ⊿VREF(mV) 125 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 5 10 15 20 25 30 Cathode voltage VKA (V) 35 40 -50 -25 0 25 50 75 100 Junction temperature T j (℃) 125 150 111027 <Linear IC> RT9H301C/P/S Adjustable Precision Shunt Regulator |ZKA|-f IOFF-Tj 100 1.0E-06 Dynamic impedance |ZKA| (Ω) Off-state cathode current IOFF (uA) 1.0E-05 1.0E-07 1.0E-08 1.0E-09 10 1 0.1 1.0E-10 1.0E-11 -50 -25 0 25 50 75 0.01 1.E+02 100 125 150 1.E+03 Junction temperature T j (℃) 1.E+06 Av-f Pulse response 6 60 5 Open loop voltage gain Av (dB) Input and output voltage VIN,VOUT (V) 1.E+04 1.E+05 Frequency f (Hz) 40 Input Voltage 4 3 20 2 Output Voltage 1 0 0 1 2 3 4 T ime t (us) 5 6 0 -20 1.E+03 7 1.E+04 1.E+05 1.E+06 Frequency f (Hz) 1.E+07 Stability boundary conditions Cathode current IK (mA) 100 a b b a 80 Stability Stability c 60 d 40 a:VKA=VREF b:VKA=5V c:VKA=10V d:VKA=15V Cathode voltage temperature Ta=25 IKA=10mA CL=:Ceramic capacitor 20 Instability 0 0.001 0.01 0.1 Load capacitance CL (uF) 1 10 111027 6-41 Tsukuba, Isahaya, Nagasaki, 854-0065 Japan Keep safety first in your circuit designs! ·ISAHAYA Electronics Corporation puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (1) placement of substitutive, auxiliary, (2) use of non-farmable material or (3) prevention against any malfunction or mishap. Notes regarding these materials ·These materials are intended as a reference to our customers in the selection of the ISAHAYA products best suited to the customer’s application; they don't convey any license under any intellectual property rights, or any other rights, belonging ISAHAYA or third party. ·ISAHAYA Electronics Corporation assumes no responsibility for any damage, or infringement of any third party's rights , originating in the use of any product data, diagrams, charts or circuit application examples contained in these materials. ·All information contained in these materials, including product data, diagrams and charts, represent information on products at the time of publication of these materials, and are subject to change by ISAHAYA Electronics Corporation without notice due to product improvements or other reasons. It is therefore recommended that customers contact ISAHAYA Electronics Corporation or an authorized ISAHAYA products distributor for the latest product information before purchasing product listed herein. ·ISAHAYA Electronics Corporation products are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact ISAHAYA electronics corporation or an authorized ISAHAYA products distributor when considering the use of a product contained herein for any specific purposes , such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. ·The prior written approval of ISAHAYA Electronics Corporation is necessary to reprint or reproduce in whole or in part these materials. ·If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or re-export contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. ·Please contact ISAHAYA Electronics Corporation or authorized ISAHAYA products distributor for further details on these materials or the products contained therein. Aug.2011