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CS5174GD8G Folha de dados(PDF) 3 Page - ON Semiconductor |
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CS5174GD8G Folha de dados(HTML) 3 Page - ON Semiconductor |
3 / 21 page CS5171, CS5172, CS5173, CS5174 http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (2.7 V< VCC < 30 V; Industrial Grade: −40°C < TJ < 125°C; Commercial Grade: 0 °C < TJ < 125°C; For all CS5171/2/3/4 specifications unless otherwise stated.) Characteristic Test Conditions Min Typ Max Unit Positive and Negative Error Amplifiers FB Reference Voltage (CS5171/3 only) VC tied to FB; measure at FB 1.246 1.276 1.300 V NFB Reference Voltage (CS5172/4 only) VC = 1.25 V −2.55 −2.45 −2.35 V FB Input Current (CS5171/3 only) FB = VREF −1.0 0.1 1.0 mA NFB Input Current (CS5172/4 only) NFB = NVREF −16 −10 −5.0 mA FB Reference Voltage Line Regulation (CS5171/3 only) VC = FB − 0.01 0.03 %/V NFB Reference Voltage Line Regulation (CS5172/4 only) VC = 1.25 V − 0.01 0.05 %/V Positive Error Amp Transconductance IVC = ± 25 mA 300 550 800 mMho Negative Error Amp Transconductance IVC = ± 5 mA 115 160 225 mMho Positive Error Amp Gain (Note 2) 200 500 − V/V Negative Error Amp Gain (Note 2) 100 180 320 V/V VC Source Current FB = 1.0 V or NFB = −1.9 V, VC = 1.25 V 25 50 90 mA VC Sink Current FB = 1.5 V or NFB = −3.1 V, VC = 1.25 V 200 625 1500 mA VC High Clamp Voltage FB = 1.0 V or NFB = −1.9 V; VC sources 25 mA 1.5 1.7 1.9 V VC Low Clamp Voltage FB = 1.5 V or NFB = −3.1 V, VC sinks 25 mA 0.25 0.50 0.65 V VC Threshold Reduce VC from 1.5 V until switching stops 0.75 1.05 1.30 V Oscillator Base Operating Frequency CS5171/2, FB = 1 V or NFB = −1.9 V 230 280 310 kHz Reduced Operating Frequency CS5171/2, FB = 0 V or NFB = 0 V 30 52 120 kHz Maximum Duty Cycle CS5171/2 90 94 − % Base Operating Frequency CS5173/4, FB = 1 V or NFB = −1.9 V 460 560 620 kHz Reduced Operating Frequency CS5173/4, FB = 0 V or NFB = 0 V 60 104 160 kHz Maximum Duty Cycle CS5173/4 82 90 − % NFB Frequency Shift Threshold Frequency drops to reduced operating frequency −0.80 −0.65 −0.50 V FB Frequency Shift Threshold Frequency drops to reduced operating frequency 0.36 0.40 0.44 V Sync/ Shutdown Sync Range CS5171/2 320 − 500 kHz Sync Range CS5173/4 640 − 1000 kHz Sync Pulse Transition Threshold Rise time = 20 ns 2.5 − − V SS Bias Current SS = 0 V SS = 3.0 V −15 − −3.0 3.0 − 8.0 mA mA Shutdown Threshold − 0.50 0.85 1.20 V Shutdown Delay 2.7 V ≤ VCC ≤ 12 V 12 V < VCC ≤ 30 V 12 12 80 36 350 200 ms ms 2. Guaranteed by design, not 100% tested in production. |
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Descrição semelhante - CS5174GD8G |
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