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| IL1083 IC of adjustable voltage regulator of positive polarity with low residual voltage and load current 7,5 A IC IL1084 is a powerful adjustable voltage regulator of positive polarity with low residual voltage and load current 7,5 A. IC of powerful adjustable voltage regulator with low residual voltage lower than 1,5A and reference voltage 1,25 V is purposed for producing constant temperature-stabilized voltage of positive polarity by means of the value set by external resistive divider and used in electronic equipment as a source of stabilized supply. Properties: * Reference voltage 1,25V * Output current up to 7,5 A * Input-output voltage difference, UIN - UO up to 30 V * Residual voltage lower than 1,5 V * Overload protection * Embedded temperature protection * Operation range of chip temperature from 0 up to +125N. 2 1 Output 1. Adjustment Output 2. Output Bottom of package - Input Table 1 - Description of regulator IC pins in 3-pin package KT-9 Pin No. Description Name 01 Adjustment Adjust Bottom of package Output Output 02 Input Input Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by IL1083 D1 Output 02 UIN Input IL1083 01 Adjust bottom of case UO R1 Cin IAdj Co R2 N1, N2 - smoothing capacitors, C1=10 mkF, N2=100 mkF (Ta), D1 - IC, R1, R2 - resistors, R1=121 Ii 1%, R2 - adjusted with accuracy 1%. Output voltage Uo, V, is defined by formula: U O =U ref (1 + R2 ) + I Adj R 2 , R1 Where U ref - reference voltage, V, I Adj - adjustment current, mkA. Since IADJ has values not more than 120 mkA, inaccuracy dependent on this value for Uo - is minor. Figure 1 - Connection circuit of adjustable voltage regulator Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by IL1083 TABLE 2 - OABLE OF ELECTRICAL CHARACTERISTICS Characteristic, measurement unit Symbol Measurement mode Standard min Reference voltage, V Uref IO=10mA (UIN - UO)=3V 10mA IO I FULL LOAD 1,5V (UIN - UO) 25V IO=10mA (UIN - UO)=3V 10mA IO I FULL LOAD 1,5V (UIN - UO) 25V IO=10 mA, 1,5V (UIN - UO) 15V IO=10 mA, 15V (UIN - UO) 30V (UIN - UO) = 3V 10mA IO I FULL LOAD Uref = 1 %, IO= I FULL LOAD (UIN - UO) = 5V (UIN - UO) = 25V (UIN - UO) = 25V teiioeun=30mnTA=25OC f=120Hz, NAdj =25F, NI=25 F IO=I FULL LOAD , (UIN - UO)=3V 10mA IO I FULL LOAD 1,5V (UIN - UO) 25V 10mA IO I FULL LOAD 1,5V (UIN - UO) 25V 1000 / ;TJ = 125 OC (when testing) 1,238 1,225 1,238 1,225 8,0 0,4 60 Max 1,262 1,270 1,262 1,270 0,2 0,5 0,3 0,4 1,5 10 0,010 Temperature TJ, OC 2510 0/125 2510 0/125 0/125 0/125 2510 0/125 0/125 0/125 0/125 0/125 0/125 Reference voltage, V Uref Change of output voltage when input voltage changes, % Regline Change of output voltage when load current changes, % Residual voltage, V Maximum output current, A Minimum output current, mA Thermostabilization, %/W Pulsation smoothing ratio, dB Regload Uds IO max IO min Regterm RR Adjustment current, mkA Change of adjustment current, mkA Ratio of output voltage temporary instability, % IAdj IAdj S - 120 5 1 0/125 0/125 2510 Notes: 1 Measurement of electrical characteristics is carried out when capacitance NIN=10 mkF is connected to the input and NI=100 mkF - to the output; 2 Reference voltage Uref in adjustable regulator is measured between outputs Output and Adjust on resistance R1 (figure 1); 3 Parameters stipulated in table 1 are ensured for constant chip temperature TJ. Measurement of parameters should be performed using heatsink and pulse technique; 4 I FULL LOAD - value of maximum output current dependent on input-output voltage difference (U IN - UO) with power dissipation in package EO-28 - 30 W. Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by IL1083 Table 3 - Typical values of electrical characteristics Characteristic, Measurement unit Adjustment current, mkA Temperature ratio of output voltage instability, % Noise voltage on output, (% ) Symbol . IAdj TS Un rms Measurement mode TJ = 25 OC TJ = 0/125 OC TJ = 25 OC 10 Ao f 10 eAo Typical value 55 0,5 0,003 Table 4 - Table of maximum and absolute maximum ratings Measurement unit V O C O C Maximum ratings min 2,77 0 max 30 125 Absolute maximum ratings min 0 -65 -65 max 31 150 150 Parameter Input-output voltage difference, UIN - UO Chip temperature, OJ Storage temperature, Ostg Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by |
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