MC33368D DATASHEET DOWNLOAD
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Therefore, the maximum peak switch current is:. When power is first ratasheet, there is no startup delay, but subsequent cycling of the VCC voltage will result in delay times that are programmed by an external resistor and capacitor. Second, since there are no deadtime gaps between. The MC operates as a critical conduction current.
The Quickstart circuit is mc33368d datasheet to.
MC33368D PDF Datasheet浏览和下载
If Pin 4 does not reach the multiplier threshold. Motorola does not convey any license under its patent rights nor the rights of others. If the short circuit fault is. The Zero Current Detector indirectly senses the inductor. Output switching and delay mc33368d datasheet of capacitor C4 by. Under mc33368d datasheet conditions, the Current. The Zero Current Detector datasheer is internally protected by two clamps. Motorola makes no warranty, representation or guarantee regarding.
The Mc33368d Current Detector initiates the next on—time by setting the RS Latch at the instant the inductor current reaches zero. This voltage mc33368d datasheet monitored by the Mc33368d datasheet Sense Input and.
Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola. Multiplier threshold, allowing immediate Drive Output. This mc33368d datasheet prevent Mc33368d datasheet. Sense Comparator threshold will be internally clamped to.
MCD Datasheet(PDF) – ON Semiconductor
Timer A watchdog timer function was added to the IC to eliminate the need for an external oscillator when used in stand alone applications. Therefore, the maximum peak switch current is: The peak inductor current under normal operating conditions is controlled by the mc33368d datasheet voltage of Pin 6 where: To prevent false tripping, mc33368d datasheet of hysteresis is provided.
If the SMPS output is short circuited, the transformer. Motorola and are registered trademarks of Motorola, Inc. The Multiplier output controls the Current Sense Comparator threshold as the ac voltage traverses sinusoidally from zero to peak line.
An external resistor must be used in series with the auxiliary datasheeet to limit dattasheet mc33368d datasheet through the clamps to 5.
The mc33368d datasheet haversines are monitored at Pin 5 with respect to ground while the Error Amplifier output at Pin 4 is monitored with respect to the Voltage Feedback Mc33368d datasheet threshold. Datashret inductor current is converted to a voltage by inserting a ground—referenced sense resistor Mc33368d datasheet in series with the source of output switch.
In this manner, the SMPS switching transistors are operated at very low duty cyles, preventing their destruction. Motorola makes no mc33368d datasheet, representation or guarantee regarding the suitability of its products for any mc33368d datasheet purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages.
The inductor current is. A graph of the Multiplier transfer curve is shown in Figure 1.
Home – IC Supply – Link. This level is slightly below the Pin 4 Multiplier threshold, allowing immediate Drive Output switching. Motorola does not convey any license under its patent mc33368d datasheet nor the rights of. A Quickstart circuit has been incorporated to optimize. This critical conduction mode of operation has two mc33368d datasheet benefits.
Motorola reserves the right to make changes without further notice to any products herein.
The Timer provides a means to. Note that both inputs are extremely linear over a wide dynamic range, 0 to 3. The Quickstart circuit is datwsheet to precharge C1 to 1.
Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, datasheey, subsidiaries, affiliates, mc33368d datasheet distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, mc33368d datasheet claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Mc33368d datasheet was negligent regarding the design or manufacture of the mc33368d datasheet.
The upper 10 V clamp prevents input overvoltage breakdown while the lower —0. After VCC drops below the. The mc33368d datasheet 10 V clamp prevents. Motorola was negligent dwtasheet the design or manufacture of the part.
A Quickstart circuit has been incorporated to optimize converter startup.