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CS2841B Datasheet(PDF) 2 Page - Cherry Semiconductor Corporation |
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CS2841B Datasheet(HTML) 2 Page - Cherry Semiconductor Corporation |
2 / 6 page 2 Electrical Characteristics: d -40≤TA≤85˚C RT=680kΩ, CT=0.022µF for triangular mode, VCC=15V (Note 1), RT=10kΩ, CT=3.3nF for sawtooth mode (See Fig. 3), unless otherwise stated. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Notes: 1. Adjust Vcc above the start threshold before setting at 15V. 3. Parameter measured at trip point of latch with VFB=0. 2.These parameters, although guaranteed, are not 100% tested in production. 4. Gain defined as: A = ; 0 ≤ VSense ≤ 0.8V. ∆VCOMP ∆VSense s Reference Section Output Voltage TJ=25˚C, IOUT=1mA 4.90 5.00 5.10 V Line Regulation 8.4≤VCC≤16V 6 20 mV Load Regulation 1≤IOUT≤20mA 6 25 mV Temperature Stability (Note 2) 0.2 0.4 mV/˚C Total Output Variation Line, Load, Temp. (Note 2) 4.82 5.18 V Output Noise Voltage 10Hz≤f≤10kHz, TJ=25˚C (Note 2) 50 µV Long Term Stability TA=125˚C, 1000 Hrs. (Note 2) 5 25 mV Output Short Circuit TA=25˚C -30 -100 -180 mA s Oscillator Section Initial Accuracy Sawtooth Mode: (See Fig. 3)TJ=25˚C 47 52 57 kHz Sawtooth Mode: -40˚C≤TA≤+85˚ 44 52 60 kHz Triangular Mode (See Fig. 3) TJ=25˚C 44 52 60 kHz Voltage Stability 8.4V≤Vcc≤16V 0.2 1.0 % Temperature Stability Sawtooth Mode TMIN≤TA≤TMAX 5% Triangular Mode TMIN≤TA ≤TMAX 8% (Note 2) Amplitude VOSC (peak to peak) 1.7 V Discharge current TJ=25˚C 7.4 8.3 9.2 mA TMIN≤TA≤TMAX 7.2 9.4 mA s Error Amp Section Input Voltage VCOMP=2.5V 2.42 2.50 2.58 V Input Bias Current VFB=0V -0.3 -2.0 µA AVOL 2≤VOUT≤4V 65 90 dB Unity Gain Bandwidth (Note 2) 0.7 1.0 MHz PSRR 8.4V≤VCC≤16V 60 70 dB Output Sink Current VFB=2.7V, VCOMP=1.1V 2 6 mA Output Source Current VFB=2.3V, VCOMP=5V -0.5 -0.8 mA VOUT High VFB=2.3V, RL=15kΩ to ground 5 6 V VOUT Low VFB=2.7V, RL=15kΩ to VREF 0.7 1.1 V s Current Sense Section Gain (Notes 3 & 4) 2.85 3.00 3.15 V/V Maximum Input Signal VCOMP=5V (Note 3) 0.9 1.0 1.1 V PSRR 12V≤VCC≤25V (Note 3) 70 dB Input Bias Current VSense=0V -2 -10 µA Delay to Output TJ=25˚C (Note 2) 150 300 ns |
Número de pieza similar - CS2841B |
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Descripción similar - CS2841B |
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