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CS3842AGDR14 Folha de dados(PDF) 3 Page - ON Semiconductor |
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3 / 10 page CS2842A, CS3842A, CS2843A, CS3843A http://onsemi.com 3 MAXIMUM RATINGS* Rating Value Unit Supply Voltage (ICC < 30 mA) Self Limiting − Supply Voltage (Low Impedance Source) 30 V Output Current ±1.0 A Output Energy (Capacitive Load) 5.0 μJ Analog Inputs (VFB, Sense) −0.3 to + 5.5 V Error Amp Output Sink Current 10 mA Package Thermal Resistance, PDIP−8 Junction−to−Case, RθJC Junction−to−Ambient, RθJA 52 100 °CW °CW Package Thermal Resistance, SO−8 Junction−to−Case, RθJC Junction−to−Ambient, RθJA 45 165 °CW °CW Package Thermal Resistance, SO−14 Junction−to−Case, RθJC Junction−to−Ambient, RθJA 30 125 °CW °CW Lead Temperature Soldering: Wave Solder (through hole styles only) (Note 1) Reflow (SMD styles only) (Note 2) 260 peak 230 peak °C °C 1. 10 second maximum. 2. 60 second maximum above 183°C. *The maximum package power dissipation must be observed. ELECTRICAL CHARACTERISTICS (−25° ≤ TA ≤ 85° for CS2842A/CS2843A, 0° ≤ TA ≤ 70° for CS3842A/CS3843A. VCC = 15 V*; RT = 680 Ω, CT = 0.022 μF for triangular mode, RT = 10 kΩ, CT = 3.3 nF for sawtooth mode (see Figure 7); unless otherwise stated.) Characteristic Test Conditions CS2842A/CS2843A CS3842A/CS3843A Unit Min Typ Max Min Typ Max Reference Section Output Voltage TJ = 25°C, IOUT = 1.0 mA 4.95 5.00 5.05 4.90 5.00 5.10 V Line Regulation 12 ≤ VIN ≤ 25 V − 6.0 20 − 6.0 20 mV Load Regulation 1.0 ≤ IOUT ≤ 20 mA − 6.0 25 − 6.0 25 mV Temperature Stability Note 3. − 0.2 0.4 − 0.2 0.4 mV/°C Total Output Variation Line, Load, Temperature (Note 3.) 4.90 − 5.10 4.82 − 5.18 V Output Noise Voltage 10 Hz ≤ f ≤ 10 kHz, TJ = 25°C (Note 3.) − 50 − − 50 − μV Long Term Stability TA = 125°C, 1.0 kHrs. (Note 3.) − 5.0 25 − 5.0 25 mV Output Short Circuit TA = 25°C −30 −100 −180 −30 −100 −180 mA Oscillator Section Initial Accuracy Sawtooth Mode (see Figure 7), TJ = 25°C Triangular Mode (see Figure 7), TJ = 25°C 47 47 52 52 57 57 47 44 52 52 57 60 kHz kHz Voltage Stability 12 ≤ VCC ≤ 25 V − 0.2 1.0 − 0.2 1.0 % Temperature Stability Sawtooth Mode TMIN ≤ TA ≤ TMAX (Note 3.) Triangular Mode TMIN ≤ TA ≤ TMAX (Note 3.) − − 5.0 8.0 − − − − 5.0 8.0 − − % % Amplitude OSC peak to peak − 1.7 − − 1.7 − V Discharge Current TJ = 25°C TMIN ≤ TA ≤ TMAX 7.5 7.2 8.3 − 9.3 9.5 7.5 7.2 8.3 − 9.3 9.5 mA mA 3. These parameters, although guaranteed, are not 100% tested in production. *Adjust VCC above the start threshold before setting at 15 V. |
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