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CM6800AXISTR Datasheet(PDF) 5 Page - Champion Microelectronic Corp. |
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CM6800AXISTR Datasheet(HTML) 5 Page - Champion Microelectronic Corp. |
5 / 18 page CM6800A LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO 2009/08/10 Rev. 1.6 Champion Microelectronic Corporation Page 5 ELECTRICAL CHARACTERISTICS (Conti.) Unless otherwise stated, these specifications apply Vcc=+15V, RT =30.16kΩ, CT = 1000pF, TA=Operating Temperature Range (Note 1) CM6800A Symbol Parameter Test Conditions Min. Typ. Max. Unit Sink Current ISENSE = +0.6V, IEAO = 4.0V -65 -35 μ A Source Current ISENSE = -0.6V, IEAO = 1.5V 35 75 μ A Open Loop Gain 60 70 dB Power Supply Rejection Ratio 11V < VCC < 16.5V 60 75 dB PFC OVP Comparator Threshold Voltage 2.70 2.77 2.85 V Hysteresis 230 300 mV Low Power Detect Comparator Threshold Voltage 0.2 0.3 0.4 V VCC OVP Comparator Threshold Voltage 17.5 17.9 18.5 V Hysteresis 1.40 1.5 1.65 V Tri-Fault Detect Fault Detect HIGH 2.65 2.75 2.85 V Time to Fault Detect HIGH VFB=VFAULT DETECT LOW to VFB=OPEN.470pF from VFB to GND 2 4 ms Fault Detect LOW 0.4 0.5 0.6 V PFC ILIMIT Comparator Threshold Voltage -1.10 -1.00 -0.90 V (PFC ILIMIT VTH – Gain Modulator Output) 20 100 mV Delay to Output (Note 4) Overdrive Voltage = -100mV 250 ns DC ILIMIT Comparator Threshold Voltage 0.95 1.0 1.05 V Delay to Output (Note 4) Overdrive Voltage = 100mV 250 ns VIN OK Comparator OK Threshold Voltage 2.16 2.25 2.36 V Hysteresis 0.9 1.1 1.3 V GAIN Modulator IAC = 100 μ A, V RMS =0, VFB = 1V at room temp 0.70 0.84 0.95 IAC = 100 μ A, V RMS = 1.1V, VFB = 1V at room temp 1.80 2.00 2.20 IAC = 150 μ A, V RMS = 1.8V, VFB = 1V at room temp 0.90 1.00 1.10 Gain (Note 3) IAC = 300 μ A, V RMS = 3.3V, VFB = 1V at room temp 0.25 0.32 0.40 Bandwidth IAC = 100 μ A 10 MHz Output Voltage = 3.5K*(ISENSE-IOFFSET) IAC = 250 μ A, V RMS = 1.1V, VFB = 1V 0.84 0.90 0.95 V |
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