Analog Devices

IT & Electronics

it-electronics

Ethernet Controllers

ethernet-controllers

Electricals

electricals

Motor Drivers / Controllers

motor-drivers-controllers

PWM Controllers

pwm-controllers

Technical Data Sheet (276.18KB) EN

MULTICOMP PRO

MULTICOMP

Duratool

Surface Mount Resistors

Multilayer Ceramic Capacitors

Through Hole Resistors

Junction & Enclosure Box

Voltage Regulators

Voltage Supervisors & Monitors

Voltage References

Hook Up Wires

Circular Connectors

PCB Headers

Element14

buyerIntroduction

Analog Devices MAX6620ATI+ Fan Controller, Dc, TQFN-28

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Analog Devices 78Q2123/F Enet Controller, 10/100BASE-TX, QFN-32

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Analog Devices 78Q2133/F Enet Controller, 10/100BASE-TX, QFN-32

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Technical Data Sheet (345.54KB) EN

Analog Devices 78Q2123R/F Enet Controller, 10/100BASE-TX, QFN-32

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Analog Devices MAX5974AETE+T Pwm Power Driver, 600KHZ, 20V, TQFN-16

The MAX5974AETE+T is an active-clamped, spread-spectrum, current-mode PWM controller in 16 pin TQFN package. It provide control for wide-input-voltage, active-clamped, current-mode PWM, forward converters in power-over-Ethernet (PoE) powered device (PD) applications. It is well suited for universal or telecom input range. The device include several features to enhance supply efficiency. The AUX driver recycles magnetizing current instead of wasting it in a dissipative clamp circuit. Programmable dead time between the AUX and main driver allows for zero-voltage switching (ZVS). Under light-load conditions, device reduces switching frequency (frequency foldback) to reduce switching losses. It features unique circuitry to achieve output regulation without using an optocoupler. It is used in PoE IEEE 802.3af/at powered devices, high-power PD (beyond the 802.3af/at standard), active-clamped forward DC-DC converters, IP phones and wireless access nodes.

Operating temperature range from -40°C to 85°C, output short circuit protection with hiccup mode

Sample/hold feedback mode, UVLO threshold of 16V & internal 1% error amplifier

Peak current-mode control, active-clamped forward PWM controller, regulation without optocoupler

100KHz to 600KHz programmable ±8% switching frequency, synchronization up to 1.2MHz

Programmable frequency dithering for low-EMI, spread-spectrum operation

Programmable dead time, PWM soft-start, current slope compensation

Programmable feed-forward maximum duty cycle clamp, 80% maximum limit

Frequency foldback for high efficiency light load operation, internal 18V zener clamp on supply i/p

Internal bootstrap UVLO with large hysteresis, 100µA (typ) start-up supply current

Applications : Consumer Electronics, Portable Devices, Audio, Power Management

Warnings : Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes : ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

<h3 class="md-block-header-three"><strong class="md-inline-bold">Analog Devices MAX5974AETE+T Pwm Power Driver, 600KHZ, 20V, TQFN-16</strong></h3><p class="md-block-unstyled">The MAX5974AETE+T is an active-clamped, spread-spectrum, current-mode PWM controller in 16 pin TQFN package. It provide control for wide-input-voltage, active-clamped, current-mode PWM, forward converters in power-over-Ethernet (PoE) powered device (PD) applications. It is well suited for universal or telecom input range. The device include several features to enhance supply efficiency. The AUX driver recycles magnetizing current instead of wasting it in a dissipative clamp circuit. Programmable dead time between the AUX and main driver allows for zero-voltage switching (ZVS). Under light-load conditions, device reduces switching frequency (frequency foldback) to reduce switching losses. It features unique circuitry to achieve output regulation without using an optocoupler. It is used in PoE IEEE 802.3af/at powered devices, high-power PD (beyond the 802.3af/at standard), active-clamped forward DC-DC converters, IP phones and wireless access nodes.</p><ul class="md-block-unordered-list-item"><li>Supply voltage range is 17V to 20V</li><li>Operating temperature range from -40°C to 85°C, output short circuit protection with hiccup mode</li><li>Sample/hold feedback mode, UVLO threshold of 16V &amp; internal 1% error amplifier</li><li>Peak current-mode control, active-clamped forward PWM controller, regulation without optocoupler</li><li>100KHz to 600KHz programmable ±8% switching frequency, synchronization up to 1.2MHz</li><li>Programmable frequency dithering for low-EMI, spread-spectrum operation</li><li>Programmable dead time, PWM soft-start, current slope compensation</li><li>Programmable feed-forward maximum duty cycle clamp, 80% maximum limit</li><li>Frequency foldback for high efficiency light load operation, internal 18V zener clamp on supply i/p</li><li>Internal bootstrap UVLO with large hysteresis, 100µA (typ) start-up supply current</li><li>Applications : Consumer Electronics, Portable Devices, Audio, Power Management</li><li>Warnings : Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.</li><li>Notes : ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party</li></ul>

<h3><strong>Analog Devices MAX5974AETE+T Pwm Power Driver, 600KHZ, 20V, TQFN-16</strong></h3>
<p>The MAX5974AETE+T is an active-clamped, spread-spectrum, current-mode PWM controller in 16 pin TQFN package. It provide control for wide-input-voltage, active-clamped, current-mode PWM, forward converters in power-over-Ethernet (PoE) powered device (PD) applications. It is well suited for universal or telecom input range. The device include several features to enhance supply efficiency. The AUX driver recycles magnetizing current instead of wasting it in a dissipative clamp circuit. Programmable dead time between the AUX and main driver allows for zero-voltage switching (ZVS). Under light-load conditions, device reduces switching frequency (frequency foldback) to reduce switching losses. It features unique circuitry to achieve output regulation without using an optocoupler. It is used in PoE IEEE 802.3af/at powered devices, high-power PD (beyond the 802.3af/at standard), active-clamped forward DC-DC converters, IP phones and wireless access nodes.</p>
<ul>
<li>Supply voltage range is 17V to 20V</li>
<li>Operating temperature range from -40°C to 85°C, output short circuit protection with hiccup mode</li>
<li>Sample/hold feedback mode, UVLO threshold of 16V &amp; internal 1% error amplifier</li>
<li>Peak current-mode control, active-clamped forward PWM controller, regulation without optocoupler</li>
<li>100KHz to 600KHz programmable ±8% switching frequency, synchronization up to 1.2MHz</li>
<li>Programmable frequency dithering for low-EMI, spread-spectrum operation</li>
<li>Programmable dead time, PWM soft-start, current slope compensation</li>
<li>Programmable feed-forward maximum duty cycle clamp, 80% maximum limit</li>
<li>Frequency foldback for high efficiency light load operation, internal 18V zener clamp on supply i/p</li>
<li>Internal bootstrap UVLO with large hysteresis, 100µA (typ) start-up supply current</li>
<li>Applications : Consumer Electronics, Portable Devices, Audio, Power Management</li>
<li>Warnings : Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.</li>
<li>Notes : ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party</li>
</ul>


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