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L6562DTR Scheda tecnica(PDF) 2 Page - STMicroelectronics |
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L6562DTR Scheda tecnica(HTML) 2 Page - STMicroelectronics |
2 / 16 page L6562 2/16 2 Description (continued) The highly linear multiplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range. The output voltage is controlled by means of a voltage-mode error amplifier and a precise (1% @Tj = 25°C) internal voltage reference. The device features extremely low consumption ( ≤70 µA before start-up and <4 mA running) and includes a disable function suitable for IC remote ON/OFF, which makes it easier to comply with energy saving norms (Blue Angel, EnergyStar, Energy2000, etc.). An effective two-step OVP enables to safely handle overvoltages either occurring at start-up or resulting from load disconnection. The totem-pole output stage, capable of 600 mA source and 800 mA sink current, is suitable for big MOS- FET or IGBT drive which, combined with the other features, makes the device an excellent low-cost solu- tion for EN61000-3-2 compliant SMPS's up to 300W. Table 2. Absolute Maximum Ratings Figure 3. Pin Connection (Top view) Table 3. Thermal Data Symbol Pin Parameter Value Unit VCC 8 IC Supply voltage (Icc = 20 mA) self-limited V --- 1 to 4 Analog Inputs & Outputs -0.3 to 8 V IZCD 5 Zero Current Detector Max. Current -50 (source) 10 (sink) mA Ptot Power Dissipation @Tamb = 50°C (DIP-8) (SO-8) 1 0.65 W Tj Junction Temperature Operating range -40 to 150 °C Tstg Storage Temperature -55 to 150 °C Symbol Parameter SO8 Minidip Unit Rth j-amb Max. Thermal Resistance, Junction-to-ambient 150 100 °C/W ZCD INV COMP MULT CS Vcc GD GND 1 2 3 4 8 7 6 5 |
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