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TEA5170 数据表(PDF) 3 Page - STMicroelectronics |
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TEA5170 数据表(HTML) 3 Page - STMicroelectronics |
3 / 9 page ELECTRICAL CHARACTERISTICS (TA = 25 oC, VCC = 12V, unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit OSCILLATOR TA Free Period RT = 100k Ω ± 0% CT = 1.2nF ± 0%, Vcc = 12V 60.40 65.60 70.80 µS TB RT = 100k Ω ± 0% CT = 560pF ± 0%, Vcc = 12V 29.18 31.70 34.22 µS ∆FOSC (T) Frequency drift due to ambient temperature variation from 0 oC to 70oC FOSC (70oC) − FOSC (0oC) 70 oC x F OSC (25oC) RT = 100k Ω ± 0% CT = 1.2nF ± 0%, Vcc = 12V 0.01 %/ °C ∆FOSC (VCC) Frequency drift due to VCC variation from 5V to 12V FOSC (12V) − FOSC (5V) 7V x FOSC (12V) RT = 100k Ω ± 0% CT = 1.2nF ± 0% 0.07 %/V ERROR VOLTAGE AMPLIFIER (VCC = 12V) Ibias Input Bias Current Ein = 2V 0 0.2 1 µA Gvol Voltage Gain 80 dB GB Gain Bandwidth 2 MHz Slew Rate 2V/ µs INTERNAL VOLTAGE REFERENCE VREF Voltage Reference Using the voltage error amplifier as a follower 1.9 2 2.1 V ∆VREF (VCC) Line Regulation VREF (12V) − VREF (5V) 7V VCC = 5V to 12V – 3 0.4 3 mV/V ∆VREF (T) VREF drift with temperature VREF (70oC) − VREF (0oC) 70 oC TA = 0 °C to 70°C 0.2 mV/ ° TON MIN TONMIN A Minimum Duty Cycle Ct = 1.2nF ± 0% Rt = 100k Ω ± 0% 1.77 2.53 3.29 µs TONMIN B Minimum Duty Cycle Ct = 560pf ± 0% Rt = 100k Ω ± 0% 1.04 1.49 1.94 µs POWER OUTPUT STAGE VPOUTH Output High Level Iload = 1mA 6.3 6.9 7.5 V VPOUTL Output Low Level Iload = – 1mA 0.5 0.8 1.1 V ISINK Sink Current VPOUT = 3V 30 60 190 mA ISOURCE Source Current VPOUT = 3V 30 110 190 mA SYNCHRONISATION Ftrig Max Maximum Synchro Frequency 64 kHz Vtrig Synchro Triggering Threshold 2.7 3 V Ttrigp Synchro Triggering Pulse Width at VRT = 2.7Volt (fig 5) 800 nS Wtrig + Positive Triggering Window Ttrig+ − TO TO CT = 1.2nF ± 0% RT = 100k Ω ± 0% 25 35 40 % Wtrig – Negative Triggering Window TO − Ttrig− TO CT = 1.2nF ± 0% RT = 100k Ω ± 0% 929 42 % SOFT START Icsf *Csf Load Current Vcsf = 1V 2.5 3.7 6 µA Donmax Maximum Duty Cycle Vcs > 2.5V, VCC = 12V CT = 1.2nf ± 0% RT = 100k Ω ± 0% 60 78 95 % *Csf is a high impedance capacitor TEA5170 3/9 |
类似零件编号 - TEA5170 |
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类似说明 - TEA5170 |
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