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MC34701EK Folha de dados(PDF) 9 Page - Freescale Semiconductor, Inc |
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MC34701EK Folha de dados(HTML) 9 Page - Freescale Semiconductor, Inc |
9 / 38 page Analog Integrated Circuit Device Data Freescale Semiconductor 9 34701 ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS ERROR AMPLIFIER (BUCK CONVERTER) Input Impedance (11) RIN – 500 – k Ω Output Impedance (11) ROUT – 150 – Ω DC Open Loop Gain (11) AVOL –80 – dB Gain Bandwidth Product (11) GBW –35 – MHz Slew Rate (11) vSR – 200 – V/ µs Output Voltage – High Level VIN1 > 3.3 V, IOEA = -1.0 mA (11), (12) VEA_OH –2.0 – V Output Voltage – Low Level IOEA = -1.0 mA (11), (12) VEA_OL –0.4 – V Oscillator Ramp (11) VSCRamp –0.5 – V OSCILLATOR CLKSYN Pin (open) Low Level Output Voltage IOL = +1.0 mA (13) VOSC_OL –– 0.4 V CLKSYN Pin (open) High Level Output Voltage IOH = -1.0 mA (14) VOSC_OH VDDI - 0.4 V – – V CLKSYN Pin (grounded) Input Voltage Threshold VOSC_IH 1.2–2.0 V CLKSYN Pin Pullup Resistance RPU 60 – 240 k Ω Frequency Adjusting Reference Voltage VFREQ –1.26– V BOOST REGULATOR Regulator Output Voltage IBST = 20 mA, VIN1 = V IN2 = 2.8 V to 6.0 V VBST 7.3 7.7 8.3 V Power MOSFET Q5 RDS(ON)(11) IBD = 500 mA, TA = 25°C RDS(ON)Q5 – 650 1000 m Ω Regulator Recommended Output Capacitor CBST –10 – µF Regulator Recommended Output Capacitor Maximum ESR ESRCBST – 100 – m Ω Notes 11. Design information only. This parameter is not production tested. 12. IOEA Refers to Error Amplifier Output Current. 13. IOL Refers to I/O Low Level 14. IOH Refers to I/O High Level Table 3. Static Electrical Characteristics (continued) Characteristics noted under conditions -40°C ≤ TA ≤ 85°C unless otherwise noted. Input voltages VIN1 = VIN2 = 3.3 V using the typical application circuit (see Figure 33) unless otherwise noted. Characteristic Symbol Min Typ Max Unit |
Nº de peça semelhante - MC34701EK |
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Descrição semelhante - MC34701EK |
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