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PT6942C Datasheet(PDF) 8 Page - Texas Instruments |
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PT6942C Datasheet(HTML) 8 Page - Texas Instruments |
8 / 11 page For technical support and more information, see inside back cover or visit www.ti.com Application Notes 1.8 (0.0) 1.85 (1.6)k Ω 1.9 (3.7)k Ω 1.95 (6.1)k Ω 2.0 (9.0)k Ω 2.05 (12.6)k Ω 2.1 (17.0)k Ω 2.15 (22.7)k Ω 2.2 (30.3)k Ω 2.25 (41.0)k Ω 2.3 (57.0)k Ω 2.35 (83.7)k Ω 2.4 (137.0)k Ω 2.45 (297.0)k Ω 2.5 (0.0)k Ω 2.55 (2.0)k Ω 167.0k Ω # 2.6 (4.3)k Ω 77.0k Ω # 2.65 (6.9)k Ω 47.0k Ω # 2.7 (10.0)k Ω 32.0k Ω # 2.75 (13.6)k Ω 23.0k Ω # 2.8 (18.0)k Ω 2.85 (23.3)k Ω 2.9 (30.0)k Ω 2.95 (38.6)k Ω 3.0 (50.0)k Ω 3.1 (90.0)k Ω 3.2 (210.0)k Ω 3.3 3.4 70.0k Ω 3.5 25.0k Ω 3.6 10.0k Ω 3.7 2.5k Ω R1/R3 = (Blue), R2/R4 = Black # See Note 3 Vo1 Bus Series Pt # PT6941/42/43/44 PT6946/47/48 Adj. Resistor (R1)/R2 (R1)/R2 Vo(nom) 3.3V 2.5V Va(req’d) Table 1 ADJUSTMENT RANGE AND FORMULA PARAMETERS Vo1 Bus Vo2 Bus (2) Series Pt # PT6941/42/43/44 PT6946/47/48 PT6941 PT6942/46 PT6943/47 PT6944/48 Adj. Resistor (R1)/R2 (R1)/R2 (R3)/R4 (R3)/R4 (R3)/R4 (R3)/R4 Vo(nom) 3.3V 2.5V 2.5V 1.8V 1.5V 1.2V Va(min) 2.5V * 1.8V * 1.8V * 1.5V * 1.2V * 1.15V Va(max) 3.5V 2.5V 3.1V 2.2V 2.4V 1.5V † Rs (k Ω Ω Ω Ω Ω) 20.0 13.0 13.0 20.0 10.0 29.4 Ref. Note 4: * (R1) = Zero-ohm link †(R3) = Zero-ohm link 1.15 (20.6)k Ω 1.2 (0.0)k Ω 1.25 (4.0)k Ω 151.0k Ω 1.3 (10.0)k Ω 60.6k Ω 1.35 (20.0)k Ω 30.6k Ω 1.4 (40.0)k Ω 15.6k Ω 1.45 (100.0)k Ω 6.6k Ω 1.5 (0.0)k Ω 0.0k Ω 1.55 (6.0)k Ω 170.0k Ω 1.6 (15.0)k Ω 80.0k Ω 1.65 (30.0)k Ω 50.0k Ω 1.7 (60.0)k Ω 35.0k Ω 1.75 (150.0)k Ω 26.0k Ω 1.8 (0.0)k Ω 19.6k Ω 1.85 (1.6)k Ω 160.0k Ω 15.7k Ω 1.9 (3.7)k Ω 70.0k Ω 12.5k Ω 1.95 (6.1)k Ω 40.0k Ω 10.0k Ω 2.0 (9.0)k Ω 25.0k Ω 8.0k Ω 2.05 (12.6)k Ω 16.0k Ω 6.4k Ω 2.1 (17.0)k Ω 10.0k Ω 5.0k Ω 2.15 (22.7)k Ω 5.7k Ω 3.9k Ω 2.2 (30.3)k Ω 2.5k Ω 2.9k Ω 2.25 (41.0)k Ω 2.0k Ω 2.3 (57.0)k Ω 1.3k Ω 2.35 (83.7)k Ω 0.6k Ω 2.4 (137.0)k Ω 0.0k Ω 2.45 (297.0)k Ω 2.5 2.55 167.0k Ω 2.6 77.0k Ω 2.65 47.0k Ω 2.7 32.0k Ω 2.75 23.0k Ω 2.8 17.0k Ω 2.85 12.7k Ω 2.9 9.5k Ω 2.95 7.0k Ω 3.0 5.0k Ω 3.1 2.0k Ω Vo2 Bus Series Pt # PT6941 PT6942/46 PT6943/47 PT6944/48 Adj. Resistor (R3)/R4 (R3)/R4 (R3)/R4 (R3)/R4 Vo(nom) 2.5V 1.8V 1.5V 1.2V Va(req’d) Table 2 ADJUSTMENT RESISTOR VALUES PT6940 Series Not Recommended For New Designs |
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