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APW38HC44AKC-TRL Datasheet(PDF) 1 Page - Anpec Electronics Coropration |
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APW38HC44AKC-TRL Datasheet(HTML) 1 Page - Anpec Electronics Coropration |
1 / 11 page CMOS Current-Mode PWM Voltage Controller Copyright ANPEC Electronics Corp. Rev. A.7 - Jan., 2003 APW38HC42A/3A/4A/5A www.anpec.com.tw 1 ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Features General Description The APW38HC4XA family are fixed frequency, high performance, current-mode PWM controller with 1.2 A drive current capability. Undervoltage lockout cir- cuitry allows the APW38HC42A and APW38HC44A versions to start up at 14.5V and operate down to 9V, and the APW38HC43A and APW38HC45A ver- sions start at 8.4V with operateion down to 7.6V. All versions operate up to 24V. The ultra low start-up current 25 µA (typical), and operating current 2mA (typical) have been designed to improve the converter efficiency. High output driving capability up to 1.2A ensures the fast switching to minimize the switching losses. The APW38HC4XA features a trimmed and temperature compensated oscillator discharge cur- rent and bandgap reference. APW38HC4XA is avail- able in both 8-pin plastic DIP and SOP packages. Applications • Current-mode , Off-line , Switched-mode Power Supplies • Current-mode , DC-to-DC converters • Various converters ( step-down, step-up, flyback , forward, and synchronous FET) Ordering and Marking Information • Ultralow start-up current (25µA typical) • Low operating current (2mA typical) • Fast output rise/fall times : −15ns rise/10ns fall • High output drive (1.2A peak current) • CMOS outputs with rail-to-rail swing • Current-mode operation up to 1MHz • Trimmed 5V bandgap reference • Pin-to-pin compatible with MIC38HC4X • Trimmed oscillator discharge current • UVLO with hysteresis • Low cross-conduction currents APW 38HC4XA Package Code J : DIP - 8 K : SOP-8 Temp. Range C : 0 to 70 C I : -40 to 85 C Handling Code TU : Tube TR : Tape & Reel Lead Free Code L : Lead Free Device Blank : Original Device ° Handling Code Temp. Range Package Code ° X - 2/3/4/5 XXXXX - Date Code APW 38HC4XA XXXXX APW 384XA J : APW 38HC4XA XXXXX APW 384XA K : X - 2/3/4/5 XXXXX - Date Code Lead Free Code Pin Description ISNS RT/CT VDD GND COMP FB OUT 1 2 3 4 VREF 5 6 7 8 |
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