MC33262

MC33260 : MC33260 GreenLinet Compact Power Factor Controller: Innovative Circuit for Cost Effective Solutions The MC33260 is a controller for Power Factor Correction preconverters meeting international standard requirements in electronic ballast and off--line power conversion applications. Designed to drive a free frequency discontinuous mode, it can also be synchronized and in any case, it features very effective protections that ensure a safe and reliable operation. This circuit is also optimized to offer extremely compact and cost effective PFC solutions. While it requires a minimum number of external components, the MC33260 can control the follower boost operation that is an innovative mode allowi.

MC33261 : Introduction Most electronic ballasts and switching power supplies use a bridge rectifier and a filter capacitor to derive raw dc voltage from the utility ac line. This simple rectifying circuit draws power from the line when the instantaneous ac voltage exceeds the capacitor’s voltage. This occurs near the line voltage peak and results in a high charge current spike. Since power is only taken near the line voltage peaks, the resulting spikes of current are extremely nonsinusoidal with a high content of harmonics. This results in a poor power factor condition where the apparent input power is much higher than the real power. The MC34261, MC33261 are high performance, critical conduction, cur.

MC33261 : Introduction Most electronic ballasts and switching power supplies use a bridge rectifier and a filter capacitor to derive raw dc voltage from the utility ac line. This simple rectifying circuit draws power from the line when the instantaneous ac voltage exceeds the capacitor’s voltage. This occurs near the line voltage peak and results in a high charge current spike. Since power is only taken near the line voltage peaks, the resulting spikes of current are extremely nonsinusoidal with a high content of harmonics. This results in a poor power factor condition where the apparent input power is much higher than the real power. The MC34261, MC33261 are high performance, critical conduction, cur.

MC33261 : Introduction Most electronic ballasts and switching power supplies use a bridge rectifier and a filter capacitor to derive raw dc voltage from the utility ac line. This simple rectifying circuit draws power from the line when the instantaneous ac voltage exceeds the capacitor’s voltage. This occurs near the line voltage peak and results in a high charge current spike. Since power is only taken near the line voltage peaks, the resulting spikes of current are extremely nonsinusoidal with a high content of harmonics. This results in a poor power factor condition where the apparent input power is much higher than the real power. The MC34261, MC33261 are high performance, critical conduction, cur.

MC33262 : Order this document by MC34262/D Power Factor Controllers The MC34262/MC33262 are active power factor controllers specifically designed for use as a preconverter in electronic ballast and in off–line power converter applications. These integrated circuits feature an internal startup timer for stand–alone applications, a one quadrant multiplier for near unity power factor, zero current detector to ensure critical conduction operation, transconductance error amplifier, quickstart circuit for enhanced startup, trimmed internal bandgap reference, current sensing comparator, and a totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of an .

MC33262 : .

MC33263 : MC33263 Ultra Low Noise 150 mA Low Dropout Voltage Regulator with ON/OFF Control Housed in a SOT23–L package, the MC33263 delivers up to 150 mA where it exhibits a typical 180 mV dropout. With an incredible noise level of 25 mVRMS (over 100 Hz to 100 kHz, with a 10 nF bypass capacitor), the MC33263 represents the ideal choice for sensitive circuits, especially in portable applications where noise performance and space are premium. The MC33263 also excels in response time and reacts in less than 25 ms when receiving an OFF to ON signal (with no bypass capacitor). Thanks to a novel concept, the MC33263 accepts output capacitors without any restrictions regarding their Equivalent Series Resist.

MC33264 : MC33264 Micropower smallCAP™ Voltage Regulators with On/Off Control The MC33264 series are micropower low dropout voltage regulators available in SO−8 and Micro−8 surface mount packages and a wide range of output voltages. These devices feature a very low quiescent current (100 μA in the ON mode; 0.1 μA in the OFF mode), and are capable of supplying output currents up to 100 mA. Internal current and thermal limiting protection is provided. They require only a small output capacitance for stability. Additionally, the MC33264 has either active HIGH or active LOW control (Pins 2 and 3) that allows a logic level signal to turn−off or turn−on the regulator output. Due to the low input−to−output.

MC33264 : Order this document by MC33264/D MC33264 Micropower smallCAP ™ LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL SEMICONDUCTOR TECHNICAL DATA Voltage Regulators with On/Off Control The MC33264 series are micropower low dropout voltage regulators available in SO–8 and Micro–8 surface mount packages and a wide range of output voltages. These devices feature a very low quiescent current (100 µA in the ON mode; 0.1 µA in the OFF mode), and are capable of supplying output currents up to 100 mA. Internal current and thermal limiting protection is provided. They require only a small output capacitance for stability. Additionally, the MC33264 has either active HIGH or active LOW contr.

MC33267 : MC33267 Low Dropout Regulator The MC33267 is a positive fixed 5.0 V regulator that is specifically designed to maintain proper voltage regulation with an extremely low input−to−output voltage differential. This device is capable of supplying output currents in excess of 500 mA and contains internal current limiting and thermal shutdown protection. Also featured is an on−chip power−up reset circuit that is ideally suited for use in microprocessor based systems. Whenever the regulator output voltage is below nominal, the reset output is held low. A programmable time delay is initiated after the regulator has reached its nominal level and upon timeout, the reset output is released. Due to the .

MC33267 : Order this document by MC33267/D MC33267 Low Dropout Regulator The MC33267 is a positive fixed 5.0 V regulator that is specifically designed to maintain proper voltage regulation with an extremely low input–to–output voltage differential. This device is capable of supplying output currents in excess of 500 mA and contains internal current limiting and thermal shutdown protection. Also featured is an on–chip power–up reset circuit that is ideally suited for use in microprocessor based systems. Whenever the regulator output voltage is below nominal, the reset output is held low. A programmable time delay is initiated after the regulator has reached its nominal level and upon timeout, the rese.

MC33269 : Order this document by MC33269/D Advance Information Low Dropout Positive Fixed and Adjustable Voltage Regulators The MC33269 series are low dropout, medium current, fixed and adjustable, positive voltage regulators specifically designed for use in low input voltage applications. These devices offer the circuit designer an economical solution for precision voltage regulation, while keeping power losses to a minimum. The regulator consists of a 1.0 V dropout composite PNP–NPN pass transistor, current limiting, and thermal shutdown. • 3.3 V, 5.0 V, 12 V and Adjustable Versions MC33269 800 mA LOW DROPOUT THREE–TERMINAL VOLTAGE REGULATORS 8 1 • • • • • • • D SUFFIX PLASTIC PACKAGE CASE 751 .

MC33269 : Voltage Regulator Adjustable Output, Low Dropout 800 mA MC33269, NCV33269 The MC33269/NCV33269 series are low dropout, medium current, fixed and adjustable, positive voltage regulators specifically designed for use in low input voltage applications. These devices offer the circuit designer an economical solution for precision voltage regulation, while keeping power losses to a minimum. The regulator consists of a 1.0 V dropout composite PNP−NPN pass transistor, current limiting, and thermal shutdown. Features • 3.3 V, 3.5 V, 5.0 V, 12 V and Adjustable Versions 2.85 V version available as MC34268 • Space Saving DPAK, SO−8 and SOT−223 Power Packages • 1.0 V Dropout • Output Current in Excess o.