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TL497AC 数据表(PDF) 9 Page - Texas Instruments |
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TL497AC 数据表(HTML) 9 Page - Texas Instruments |
9 / 11 page TL497AC, TL497AI, TL497AY SWITCHING VOLTAGE REGULATORS SLVS009C – JUNE 1976 – REVISED AUGUST 1995 4–9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION 3-Term Reg < 12 V Switching Circuit Control 14 13 TL497A 5 VO VI VI VO R2 1 k Ω R1 Q2 10 mA RCL Vreg 14 13 5 TL497A CURRENT LIMIT FOR EXTENDED INPUT CONFIGURATION Q1 R CL + V BE(Q1) I limit (PK) R1 ) V I I B(Q2) R2 + Vreg * 1 10 kW Control DESIGN EQUATIONS Switching Circuit EXTENDED INPUT CONFIGURATION WITHOUT CURRENT LIMIT 3-Term Reg < 12 V Figure 4. Extended Input Voltage Range (VI > 12 V) |
类似零件编号 - TL497AC |
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类似说明 - TL497AC |
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