Datasheet CS5171, CS5172, CS5173, CS5174 (ON Semiconductor) - 3

FabricanteON Semiconductor
DescripciónBoost Regulators, 1.5 A, 280 kHz/560 kHz
Páginas / Página23 / 3 — CS5171, CS5172, CS5173, CS5174. ELECTRICAL CHARACTERISTICS. …
Revisión24
Formato / tamaño de archivoPDF / 349 Kb
Idioma del documentoInglés

CS5171, CS5172, CS5173, CS5174. ELECTRICAL CHARACTERISTICS. Characteristic. Test Conditions. Min. Typ. Max. Unit

CS5171, CS5172, CS5173, CS5174 ELECTRICAL CHARACTERISTICS Characteristic Test Conditions Min Typ Max Unit

Línea de modelo para esta hoja de datos

Versión de texto del documento

link to page 3 link to page 3
CS5171, CS5172, CS5173, CS5174 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 VC = FB − 0.01 0.03 %/V (CS5171/3 only) NFB Reference Voltage Line Regulation VC = 1.25 V − 0.01 0.05 %/V (CS5172/4 only) 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; 1.5 1.7 1.9 V VC sources 25 mA 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 −15 −3.0 − mA SS = 3.0 V − 3.0 8.0 mA Shutdown Threshold − 0.50 0.85 1.20 V Shutdown Delay 2.7 V ≤ VCC ≤ 12 V 12 80 350 ms 12 V < VCC ≤ 30 V 12 36 200 ms 2. Guaranteed by design, not 100% tested in production.
www.onsemi.com 3