amc3842b ADDtek Corp, amc3842b Datasheet
amc3842b
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amc3842b Summary of contents
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... The under voltage lock-out (U.V.L.O.) is designed to operated with 200µA start-up current in typical, allowing an efficient bootstrap supply voltage design. The U.V.L.O. thresholds for the AMC3842B/44B are 16V (on) and 10V (off), which are ideal for off-line applications. The corresponding typical threshold for the AMC3843/45BB is 8 ...
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... JA All of the above assume no ambient airflow. Copyright © 2006 ADDtek Corp. ABSOLUTE MAXIMUM RATINGS (Note THERMAL DATA × θ AMC3842B/43B/44B/45B 35V ± 1A -0.3V to 6.3V 10mA 1W O 150 150 O 260 C/W O 120 ...
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... Note 6: Toggle flip flop used only in 3844B/45B Copyright © 2006 ADDtek Corp. BLOCK DIAGRAM U.V.L. REF V REF Good Logic Current Sense Oscillator 3 AMC3842B/43B/44B/45B 36V PWM R Latch S T DD019_F -- OCTOBER 2006 7 (12 (9) GND 7 (11) PWR V C OUTPUT 6 (10) ...
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... C J 12V ≤ V ≤ 25V CC ≤ T ≤ MIN A MAX / OSC A VOL V COMP = 5V I(MAX) 12V ≤ V ≤ 25V (note BIAS 4 AMC3842B/43B/44B/45B Recommended Operating Conditions Min. Typ 100 0 AMC384XB Min. Typ. = 1mA 4.9 5 -30 -100 ...
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... 1nF AMC3842B/44B V TH(ST) AMC3843B/45B AMC3842B/44B AMC3843B/45B AMC3842B/43B Dmax AMC3844B/45B AMC3842B/44B AMC3843B/45B SENSE 25mA and COMP with the input changing from 0V to 0.8V 5 AMC3842B/43B/44B/45B -0.1 2. -0.5 -1 0.7 REF 0.1 1.4 13 13 14.5 16.0 7.8 8.4 8.5 10 7.0 7 ...
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... Vcc=15V 100 90 Isc 80 (mA) 70 TA=-40º 100 120 -50 6 AMC3842B/43B/44B/45B Maximum Output Duty Cycle vs. Timing Resistor Idischg=7.5mA Idischg=8.8mA Vcc=15V Ct=3.3mF T =25º Ω urre nse Input Thre shol d vs. ...
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... COMP REF Output I SENSE SENSE Adjust R /C GND T T Careful grounding techniques are necessary for high peak currents C T pin SENSE 7 AMC3842B/43B/44B/45B Current Sense Comparator = 1V/R S(MAX REF GND Fig. 3. Oscillator Section 1.72 For R < ...
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... Copyright © 2006 ADDtek Corp. APPLICATION INFORMATION (continued) V REF Shutdown I SENSE V REF R 0.1µ SENSE C 8 AMC3842B/43B/44B/45B COMP I SENSE R SENSE DD019_F -- OCTOBER 2006 ...
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... Plastic DIP 8-Pin Plastic S.O.I. SEATING PLAN Copyright © 2006 ADDtek Corp. AMC3842B/43B/44B/45B PACKAGE INCHES MILLIMETERS MIN TYP MAX MIN TYP A 0.355 0.365 0.400 9.02 9.27 B 0.240 0.250 0.280 6.10 6. 0.200 0.210 - 5 ...
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... Plastic S.O.I. SEATING PLAN Copyright © 2006 ADDtek Corp AMC3842B/43B/44B/45B INCHES MILLIMETERS MIN TYP MAX MIN A 0.336 - 0.344 8.54 B 0.159 - 0.158 3.81 C 0.053 - 0.069 1.35 D 0.014 - 0.018 0.35 F 0.026 - 0.030 0.67 G 0.050 BSC J 0.007 - 0.010 0.19 K 0.004 - 0.010 0.10 L 0.189 - 0.205 4. 8º ...
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... ADDtek assumes to no liability to customer product design or application support. ADDtek warrants the performance of its products to the specifications applicable at the time of sale. ADDtek Corp. 9F, No. 20, Sec. 3, Bade Rd., Taipei, Taiwan, 105 TEL: 2-25700299 FAX: 2-25700196 Copyright © 2006 ADDtek Corp. AMC3842B/43B/44B/45B IMPORTANT NOTICE 11 DD019_F -- OCTOBER 2006 ...