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Analog Devices MAX5974DETE+T — Analog & Data Acquisition
Analog Devices

MAX5974DETE+T Switching Controller, Flyback/Forward

MPNMAX5974DETE+T
End of Life

Analog Devices MAX5974DETE+T current-mode PWM controller for flyback and forward converter topologies, 100kHz–600kHz switching, 80% max duty cycle, 8.4V–26V supply, 16-TQFN (3x3 mm), -40°C to +85°C.

$5.99Ref. price · indicative, final on quote
MAX5974DETE+T datasheet
Packaging16-WFQFN Exposed Pad
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

MAX5974DETE+T Technical Specifications
ParameterValue
Output typeTransistor Driver
Mounting typeSurface Mount
Voltage - supply (Vcc (Vdd))8.4V ~ 26V
Frequency100kHz ~ 600kHz
Number of outputs1
Output phases1
Duty cycle80%
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStep-Up/Step-Down
TopologyFlyback, Forward Converter
Clock syncYes
Case16-WFQFN Exposed Pad
Control featuresDead Time Control, Enable, Frequency Control, Soft Start
Output configurationPositive, Isolation Capable
Synchronous rectifierYes

Product details

What the MAX5974DETE+T is and where it fits

The MAX5974DETE+T is a current-mode PWM controller for flyback and forward converter topologies in a 16-TQFN (3x3 mm) package.

Switching frequency range and duty cycle — design margin

The controller's switching frequency is programmable from 100kHz to 600kHz. At the high end you shrink the transformer core and output capacitor, but you trade off switching losses and snubber dissipation. The 80% maximum duty cycle is typical for flyback designs — it gives enough on-time for step-up ratios without starving the transformer reset. If your design needs a duty cycle above 80%, you are looking at a different topology or a controller with a wider pulse-width window.

Lifecycle and sourcing

The MAX5974DETE+T carries an Active lifecycle status with ROHS3 compliance.

Frequently asked questions

Can the MAX5974 be used in flyback or forward converter designs?

Yes, the MAX5974DETE+T is designed for both flyback and forward converter topologies, with support for synchronous rectification and clock synchronization.