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MAX5974DETE+ The MAX5974DETE+ is a PWM controller from Analog Devices, designed for Power-over-Ethernet (PoE) powered device applications. It offers a wide input voltage range and programmable switching frequency.
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MAX5974DETE+

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX5974DETE+ is a PWM controller from Analog Devices, designed for Power-over-Ethernet (PoE) powered device applications. It offers a wide input voltage range and programmable switching frequency.
✓ Total Stock: 12,053 pcs
$ Price Range: $0.78

MAX5974DETE+ Available from 1 distributor

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✓ Non-Authorised
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Romaks Technologies ✓
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12,053 pcs
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MAX5974DETE+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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MAX5974DETE+ Description

Short technical summary and product information.

The MAX5974DETE+ is an active-clamped, current-mode PWM controller from Analog Devices, suitable for Power-over-Ethernet (PoE) powered device (PD) applications. It supports wide input voltage ranges, accommodating universal or telecom inputs, and specific variants can handle voltages down to 10.5V.

 

Key features include peak current-mode control, regulation without an optocoupler (on certain variants), an internal 1% error amplifier, and programmable dead time for zero-voltage switching (ZVS). The device also incorporates frequency foldback for high-efficiency light-load operation and programmable frequency dithering for low-EMI, spread-spectrum operation. The maximum duty cycle is clamped at 80%.

 

This controller operates within a frequency range of 100kHz to 600kHz, with synchronization capabilities up to 1.2MHz. It includes features like PWM soft-start, current slope compensation, and output short-circuit protection with hiccup mode. The operating temperature range is -40°C to 85°C.

 

The MAX5974DETE+ is available in a 16-pin TQFN-EP package, measuring 3x3mm, and is designed for surface mount applications.

MAX5974DETE+ Quick Information

Product Type: DC DC Switching Controller
Canonical Name: MAX5974DETE+ Active-Clamped, Spread-Spectrum, Current-Mode PWM Controller
Subcategory: Active-Clamped, Spread-Spectrum, Current-Mode

MAX5974DETE+ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX5974DETE+ Estimated Pricing

Qty Low High
1+ $0.78 $0.78

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX5974DETE+ Features

  • Active-clamped, current-mode PWM controller.
  • Supports Power-over-Ethernet (PoE) PD applications.
  • Programmable frequency from 100kHz to 600kHz.
  • Features frequency foldback and dithering.
  • Available in a 16-pin TQFN-EP package.

MAX5974DETE+ Applications

  • Used in Power-over-Ethernet powered devices.
  • Suitable for active-clamped forward converters.
  • Ideal for IP phones and access nodes.
  • Applicable for security cameras.

MAX5974DETE+ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of MAX5974DETE+?

The operating voltage range is 8.4V to 26V.

What is the switching frequency range of MAX5974DETE+?

The switching frequency range is 100kHz to 600kHz, with synchronization up to 1.2MHz.

What is the maximum duty cycle?

The maximum duty cycle is 80%.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What package options are available for MAX5974DETE+?

The package options are 16-TQFN (3x3) and 16-WFQFN Exposed Pad.

What topology does this controller support?

It supports Flyback and Forward Converter topologies.

What control features are included?

Control features include Dead Time Control, Enable, Frequency Control, and Soft Start.

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