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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AP3103 датащи(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AP3103 датащи(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
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1 / 14 page  VERSATILE COST EFFECTIVE GREEN PWM CONTROLLER AP3103 Preliminary Datasheet 1 Feb. 2010 Rev. 1. 0 BCD Semiconductor Manufacturing Limited General Description The AP3103 is a low startup current, current mode PWM controller with green-mode power-saving opera- tion. The PWM switching frequency at normal opera- tion is externally programmable and is trimmed to a tigh range. The dithering of frequency will improve EMI feature. When the load decreases, the frequency will reduce and when at a very low load, the IC will enter the ‘skip mode’ to minimize switching loss. About 20kHZ frequency switching is aviode the audi- ble noise as well as reduding the standby loss. The AP3103 features a lot of functions such as the Leading-Edge Blanking (LEB) of the current sensing, internal slope compensation and several protection functions including cycle-by-cycle current limit (OCP), VCC Over Voltage Protection (VOVP), OTP, OLP protection. This IC is available in SOT-23-6 and DIP-8 packages. Features · Bi-CMOS Process with Excellent Performance · Very Low Start-up Current:( < 15µA) · Current Mode Control · Non-audible-noise Green-mode Control · LEB (Leading-edge Blanking) on CS Pin · Internal Slope Compensation · Frequency Fold Back for High Average Effi- ciency · Soft Switching for Reducing EMI · Useful Pin Fault Protection: CS Pin Floating RI Pin Short to Ground RI Pin Floating FB/Opt-coupler Open/short · Comprehensive System Protection Feature: VCC Over Voltage Protection (VOVP) Over Temperature Protection (OTP) Over Load Protection (OLP) · Mini Size with Packages Applications · Switching AC-DC Adapter/Charger · ATX/BTX Auxiliary Power · Set-top Box(STB) Power Supply · Open Frame Switching Power Supply Figure 1. Package Types of AP3103 SOT-23-6 DIP-8 |
Аналогичный номер детали - AP3103 |
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Аналогичное описание - AP3103 |
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