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FAN5234MTCX 数据表(PDF) 5 Page - Fairchild Semiconductor |
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FAN5234MTCX 数据表(HTML) 5 Page - Fairchild Semiconductor |
5 / 15 page © 2004 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5234 • Rev. 2.0.0 5 Electrical Characteristics Recommended operating conditions, unless otherwise noted. Symbol Parameter Conditions Min. Typ. Max. Units Power Supplies IVCC VCC Current LDRV, HDRV Open; VSEN Forced Above Regulation Point 850 1300 µA Shutdown (EN-0) 5 15 µA ISINK VIN Current, Sinking VIN Pin = Input Voltage Source 10 20 30 µA ISOURCE VIN Current, Sourcing VIN Pin = GND 7 15 20 µA ISD VIN Current, Shutdown 1 µA VUVLO UVLO Threshold Rising VCC 4.30 4.55 4.75 V Falling 4.10 4.27 4.50 VUVLOH UVLO Hysteresis 0.1 0.5 V Oscillator fosc Frequency VIN > 5V 255 300 345 KHz VIN = 0V 510 600 690 VPP Ramp Amplitude VIN = 16V 2 V VIN > 5V 1.25 VRAMP Ramp Offset 0.5 V G Ramp / VIN Gain VIN ≥ 3V 125 mV/V 1V < VIN < 3V 250 Reference and Soft-Start VREF Internal Reference Voltage 0.891 0.900 0.909 V ISS Soft-Start Current At Startup 5 µA VSS Soft-Start Complete Threshold 1.5 V PWM Converter Load Regulation IOUT from 0 to 3A, VIN from 2 to 24V -1 +1 % ISEN VSEN Bias Current 50 80 150 nA VOUT Pin Input Impedance 40 55 65 K Ω UVLOTSD Under-Voltage Shutdown % of Set Point, 2µs Noise Filter 70 75 80 % ISNS Over-Current Threshold RILIM = 68.5KΩ, Figure 6 115 144 172 % UVLO Over-Voltage Threshold % of Set Point, 2µs Noise Filter 113 120 µA Output Drivers HDRV Output Resistance Sourcing 8.0 15.0 Ω Sinking 3.2 4.0 LDRV Output Resistance Sourcing 8.0 15.0 Ω Sinking 1.5 2.4 Continued on following page… |
类似零件编号 - FAN5234MTCX |
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类似说明 - FAN5234MTCX |
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