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LS7338 データシート(PDF) 4 Page - LSI Computer Systems |
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LS7338 データシート(HTML) 4 Page - LSI Computer Systems |
4 / 5 page P AC MAINS N LOAD C1 T1 L1 C2 R1 R2 A B R6 R9 C3 D1 5 6 7 8 4 3 2 1 R5 C3 C4 OUT V DD SLV SENSE V SS OSC CAP SYNC + LS7338 R4 R3 SEE NOTE 1 FIGURE 5. A TYPICAL LIGHT SWITCH APPLICATION G MT2 MT1 Z1 - ELECTRONIC EXTENSION (Figure 6) EXTN P C7 SEE NOTE 3 SEE NOTE 2 R10 SENSOR PLATE R8 C6 R7 - + NOTES: 1. Use Connection A when Neutral is not available. Use Connection B when Neutral is available. 2. C7 is used only with Electronic Extension. R10 is used only with Mechanical Switch. 3. Connection between Pin 2 and Pin 3 is removed when SLAVE input is used. 4. See Table 2 for Component Functional Description 115VAC 220VAC 115VAC 220VAC (1) R1 270 Ω, 1W 1k Ω, 2W (1) C2 0.33µF,200V 0.22µF,400V (2) R1 82 Ω 82 Ω (2) C2 0.22µF,200V 0.1µF,400V R2 1.5M Ω 1.5M Ω C3 47µF 47µF R3 2.7M Ω 4.7M Ω C4 470pF 470pF R4 2.7M Ω 4.7M Ω C5 .047µF .047µF (3) R5 1M Ω to 5MΩ 1MΩ to 5MΩ C6 (5) (5) R6 100 Ω 100 Ω C7 0.1µF,200V 0.1µF,400V R7 (4) (4) Z1 15V, 1/2W 15V, 1/2W R8 (4) (4) D1 1N4148 1N4148 R9 1.5M Ω 1.5M Ω L1 100µH 200µH R10 150k Ω 150k Ω (6) T1 Q4008L4 Q5004L4 C1 0.15µF, 200V 0.15µF, 400V (1) Connection A (2) Connection B (3) Select for desired touch sensitivity (4) 100k Ω ≤ (R7 + R8) ≤ 10MΩ (5) (R7 + R8)C6 ≥ 5ms (6) Typical All Resistors 1/4W, all Capacitors 25V unless otherwise specified TABLE 2 . FIGURE 5 COMPONENT FUNCTIONAL DESCRIPTION COMPONENTS FUNCTIONAL DESCRIPTION Z1, D1, R1, C2, C3 DC Power Supply. R2, C4 Current limit and filter AC for SYNC input. C1, L1 RFI filtering for AC Mains. C5 PLL filter capacitor. R3, R4, R5 Network sets the Touch Sensitivity for the SENSE input. R6 Current limiting and isolation between IC output and Triac Gate. R7, R8, C6 Oscillator R-C network. Potentiometer R6 required only if providing user adjustment of Time-out, TD1. R9, C7 Filter for the Electronic Extension R10 Current limiting resistor for the Mechanical Switch Extension. |
同様の部品番号 - LS7338 |
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同様の説明 - LS7338 |
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