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TNY279PN Off-line Switcher IC
Original price was: ₹80.00.₹65.00Current price is: ₹65.00. inc. GST
6 MHz 2 Pin Crystal Oscillator
₹21.00 inc. GST
TOP222YN Off-line PWM Switch IC
Original price was: ₹135.00.₹110.00Current price is: ₹110.00. inc. GST
- Supply Current: 1.2 mA
- Output Voltage: 5.7 V
- Power (Watts): 25W
- Output Current-Max: 0.5500 A
- Switching Frequency-Max: 110 KHz
- Lowest cost, lowest component count switcher solution.
- Â Cost competitive with linears above 5 W.
- Very low AC/DC losses – up to 90% efficiency.
- Â Built-in Auto-restart and Current limiting.
- Â Latching Thermal shutdown for system level protection.
- Â Circuit simplicity and Design Tools reduce time to market
- Package: TO-22
Description
TOPSwitch-II family introduced by Power Integrations designed as the latest generation of its industry-leading TOPSwitch series of off-line switcher ICs.The second generation TOPSwitch™-II family designed as the most cost effective and provides several enhancements over the first generation TOPSwitch family.TOP222Y Off-line PWM Switch IC designed explicitly for use in 100/115/230 VAC off-line Power Supply applications in the 100 to 150 W range. And also for 85-265 VAC off-line power factor correction (PFC) applications in the 50 to 90 W range. Many significant circuit enhancements that reduce the sensitivity to board layout and line transients now make the design even easier. These IC with internal lead frame utilize six of its pins to transmit heat from the chip directly to board. Thus eliminating the cost of a heat sink.
It is basically a complete integrated circuit consisting of only three pins with all functionalities for an off-line switched mode control system.These are high voltage N-channel power MOSFET featuring controlled turn-on gate driver, voltage mode PWM controller with integrated 100 kHz oscillator, high voltage start-up bias circuit. And also bandgap derived reference, bias shunt regulator/error amplifier for loop compensation and fault protection circuitry. This brings TOPSwitch technology advantages to many new applications, i.e. TV, Monitor, Audio amplifiers, etc. Meanwhile, it improves the efficiency, productivity and offers high reliability for the device.
TOPSwitch designed as a self biased and guarded linear control current-to-duty cycle converter with an open drain output. This IC acheives High efficiency through the utilization of CMOS and integration of the utmost number of functions possible. The CMOS significantly reduces bias currents as compared to bipolar or discrete solutions. Moreover, the Integration eliminates external power resistors utilized for current sensing and/or supplying initial start-up bias current.
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