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MC33063AD 数据表(PDF) 3 Page - Texas Instruments |
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MC33063AD 数据表(HTML) 3 Page - Texas Instruments |
3 / 16 page www.ti.com Recommended Operating Conditions Electrical Characteristics Oscillator Output Switch (1) Comparator Total Device MC33063A, MC34063A 1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORS SLLS636J – DECEMBER 2004 – REVISED OCTOBER 2005 MIN MAX UNIT VCC Supply voltage 3 40 V MC33063A –40 85 TA Operating free-air temperature °C MC34063A 0 70 VCC = 5 V, TA = full operating range (unless otherwise noted) (see block diagram) PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT fosc Oscillator frequency VPIN5 = 0 V, CT = 1 nF 25 °C 24 33 42 kHz Ichg Charge current VCC = 5 V to 40 V 25 °C 24 35 42 µA Idischg Discharge current VCC = 5 V to 40 V 25 °C 140 220 260 µA Idischg/Ichg Discharge-to-charge current ratio VPIN7 = VCC 25 °C 5.2 6.5 7.5 VIpk Current-limit sense voltage Idischg = Ichg 25 °C 250 300 350 mV PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT Saturation voltage – VCE(sat) ISW = 1 A, pins 1 and 8 connected Full range 1 1.3 V Darlington connection Saturation voltage – ISW = 1 A, RPIN8 = 82 Ω to VCC, VCE(sat) Full range 0.45 0.7 V non-Darlington connection(2) forced β ∼ 20 hFE DC current gain ISW = 1 A, VCE = 5 V 25 °C 50 75 IC(off) Collector off-state current VCE = 40 V Full range 0.01 100 µA (1) Low duty-cycle pulse testing is used to maintain junction temperature as close to ambient temperature as possible. (2) In the non-Darlington configuration, if the output switch is driven into hard saturation at low switch currents ( ≤300 mA) and high driver currents ( ≥30 mA), it may take up to 2 µs for the switch to come out of saturation. This condition effectively shortens the off time at frequencies ≥30 kHz, becoming magnified as temperature increases. The following output drive condition is recommended in the non-Darlington configuration: Forced β of output switch = I C,SW / (IC,driver – 7 mA) ≥ 10, where ∼7 mA is required by the 100-Ω resistor in the emitter of the driver to forward bias the Vbe of the switch. PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT 25 °C 1.225 1.25 1.275 Vth Threshold voltage V Full range 1.21 1.29 ∆V th Threshold-voltage line regulation VCC = 5 V to 40 V Full range 1.4 5 mV IIB Input bias current VIN = 0 V Full range –20 –400 nA PARAMETER TEST CONDITIONS TA MIN MAX UNIT VCC = 5 V to 40 V, CT = 1 nF, ICC Supply current VPIN7 = VCC, VPIN5 > Vth, Full range 4 mA VPIN2 = GND, All other pins open 3 |
类似零件编号 - MC33063AD |
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类似说明 - MC33063AD |
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