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MC7905ACT bảng dữ liệu(PDF) 1 Page - ON Semiconductor |
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MC7905ACT bảng dữ liệu(HTML) 1 Page - ON Semiconductor |
1 / 14 page © Semiconductor Components Industries, LLC, 2004 March, 2004 − Rev. 12 1 Publication Order Number: MC7900/D MC7900 Series 1.0 A Negative Voltage Regulators The MC7900 series of fixed output negative voltage regulators are intended as complements to the popular MC7800 series devices. These negative regulators are available in the same seven−voltage options as the MC7800 devices. In addition, one extra voltage option commonly employed in MECL systems is also available in the negative MC7900 series. Available in fixed output voltage options from − 5.0 V to − 24 V, these regulators employ current limiting, thermal shutdown, and safe−area compensation − making them remarkably rugged under most operating conditions. With adequate heatsinking they can deliver output currents in excess of 1.0 A. • No External Components Required • Internal Thermal Overload Protection • Internal Short Circuit Current Limiting • Output Transistor Safe−Area Compensation • Available in 2% Voltage Tolerance (See Ordering Information) • Pb−Free Package May be Available. The G−Suffix Denotes a Pb−Free Lead Finish Figure 1. Representative Schematic Diagram Gnd VO VI 3.6 k 1.2 k 1.1 k 2.0 k 2.0 k 8.0 k 1.0 k 1.6 k 4.0 k 0.3 10 k 10 k 20 k 20 k 20 pF 10 pF 240 750 R1 R2 This device contains 26 active transistors. http://onsemi.com TO−220 T SUFFIX CASE 221A Heatsink surface connected to Pin 2. Pin 1. Ground 2. Input 3. Output D2PAK D2T SUFFIX CASE 936 Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2. 1 2 3 1 2 3 STANDARD APPLICATION A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0 V above more negative even during the high point of the input ripple voltage. These two digits of the type number indicate nominal voltage. Cin is required if regulator is located an appreciable distance from power supply filter. CO improve stability and transient response. MC79XX Input Cin* 0.33 mF CO** 1.0 mF Output XX, ** ** See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet. ORDERING INFORMATION See general marking information in the device marking section on page 12 of this data sheet. DEVICE MARKING INFORMATION |
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Mô tả tương tự - MC7905ACT |
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