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AZ494AM Datasheet(PDF) 5 Page - BCD Semiconductor Manufacturing Limited |
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AZ494AM Datasheet(HTML) 5 Page - BCD Semiconductor Manufacturing Limited |
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5 / 13 page  PULSE-WIDTH-MODULATION CONTROL CIRCUITS AZ494A/C Data Sheet 5 Apr. 2006 Rev. 1. 2 BCD Semiconductor Manufacturing Limited Parameter Symbol Conditions Min Typ Max Unit Reference Section Output Reference Voltage for AZ494A VREF IREF=1mA 4.90 4.95 5.0 V IREF=1mA, TA= -40 to 85 oC 4.85 4.95 5.05 V Output Reference Voltage for AZ494C VREF IREF=1mA 4.95 5.0 5.05 V IREF=1mA, TA= -40 to 85 oC 4.9 5.0 5.1 V Line Regulation RLINE VCC = 7V to 36V 2 25 mV Load Regulation RLOAD IREF=1mA to 10mA 1 15 mV Short-Circuit Output Current ISC VREF = 0V 10 35 50 mA Oscillator Section Oscillator Frequency fOSC CT=0.001µF, RT=30KΩ,40 KHz CT=0.01µF, RT=12KΩ 9.2 10 10.8 CT=0.01µF, RT=12KΩ, TA= -40 to 85 oC 9.0 12 Frequency Change with Temperature ∆f /∆TC T=0.01µF, RT=12KΩ, TA= -40 to 85 oC 1% Dead-Time Control Section Input Bias Current IBIAS VCC=15V, V4= 0 to 5.25V -2 -10 µA Maximum Duty Cycle, D(MAX) VCC=15V, V4= 0V, Pin 13= VREF 45 % Input Threshold Voltage VITH Zero Duty Cycle 3 3.3 V Maximum Duty Cycle 0 Error-Amplifier Section Input Offset Voltage VIO V3 = 2.5V 2 10 mV Input Offset Current IIO V3 = 2.5V 25 250 nA Input Bias Current IBIAS V3 = 2.5V 0.2 1 µA Common-Mode Input Voltage Range VCM VCC=7V to 36V -0.3 VCC-2 V Open-Loop Voltage Gain GVO VO =0.5V to 3.5V 70 95 dB Unity-Gain Bandwidth BW 650 KHz Common-Mode Rejection Ratio CMRR 65 80 dB Output Sink Current (Feedback) ISINK VID = -15mV to -5V, V3 = 0.7V -0.3 -0.7 mA Output Source Current (Feedback) ISOURCE VID=15mV to 5V V3 = 3.5V 2mA TA = 25 oC, V CC=20V, f=10KHz unless otherwise noted. Electrical Characteristics |
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