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TEA2260 数据表(PDF) 4 Page - STMicroelectronics |
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TEA2260 数据表(HTML) 4 Page - STMicroelectronics |
4 / 9 page RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min. Typ. Max. Unit VCC Power Supply VCC stop 12 VCC max V IOUT+ Positive Output Current (source current) 1.2 A IOUT- Negative Output Current (sink current) 2.0 A IOUT+ Average Positive Output Current 0.6 A IOUT- Average Negative Output Current 0.6 A Foper Operating Frequency 10 100 kHz VIN Input Pulses Amplitude (Pin 2) 1.5 2.5 4.5 V ROSC Oscillator Resistor Range 20 150 k Ω COSC Oscillator Capacitor Range 0.47 4.7 nF C1 Soft-starting Capacitor Range 0.047 1 µF C2 Overload Integration Capacitor 0.047 1 µF C2/C1 Ratio C2/C1 (C2 must be ≥ C1) 1 Tamb Operating Ambient Temperature -20 70 oC ELECTRICAL CHARACTERISTICS (Tamb = 25 oC, VCC =12V, unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit POWER SUPPLY VCC(start) Starting Voltage (VCC increasing) 9.3 10.3 11.3 V VCC(stop) Stopping Voltage (VCC decreasing) 6.4 7.4 8.4 V Hyst VCC Hysteresis (VCC(start) - VCC(Stop)) 2.4 2.9 V ICC(start) Starting Current (VCC = 9V) 0.7 1.4 mA ICC Supply Current (VCC = 12V) 7.5 15 mA VCC(max) Overvoltage Threshold on VCC 15 15.7 V ICC(over) Supply Current after Overvoltage Detection (VCC = 17V) 26 35 42 mA OSCILLATOR / PWM SECTION Delta F F Accuracy (ROSC = 68k Ω, COSC = 1nF) 10 % tON max Maximum Duty Cycle in Primary Regulation Mode 50 60 70 % ERROR AMPLIFIER SECTION AVO Open Loop Gain 75 dB Fug Unity Gain Frequency 550 kHz ISC Short Circuit Output Current (Pin 7 connected to ground) 2 mA IBE E Input Bias Current (Pin 6) 0.08 µA VREF Internal Voltage Reference (connected to error amplifier input and not directly accessible) 2.34 2.49 2.64 V INPUT SECTION VIN IN Input Threshold (Pin 2) 0.6 0.85 1.2 V VIS IS Input Threshold (Pin 1) 0.15 V IBIN IN Input Bias Current 0.3 µA IBIS IS Input Bias Current 0.4 µA CURRENT LIMITATION SECTION VIM1 First Current Limitation Threshold 558 600 642 mV VIM2 Second Current Limitation Threshold 837 900 963 mV ∆VIM Thresholds Difference VIM2 - VIM1 300 mV VC2 Lock-out Threshold on Pin C2 2.25 2.55 2.85 V IDC2 Capacitor C2 Discharge Current 10 µA ICC2 Capacitor C2 Charge Current 45 µA IBI(max) Maximum Input Bias Current (Pin 3) 0.2 µA TEA2260 - TEA2261 4/9 |
类似零件编号 - TEA2260 |
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类似说明 - TEA2260 |
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