mWSaver™ Power Factor Controller (PFC) CrCM + QR PWM Controller, Brown Out Protection

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Overview

The highly integrated FAN6921ML combines a Power Factor Correction (PFC) controller and a Quasi-Resonant PWM controller. Integration provides cost-effect design and allows for fewer external components.
For PFC, FAN6921ML uses a controlled on-time technique to provide a regulated DC output voltage and to perform natural power factor correction. With an innovative THD optimizer, FAN6921ML can reduce input current distortion at zero-crossing duration to improve THD performance.
For PWM, FAN6921ML enhances the power system performance through valley detection, green-mode operation, and high / low line over power compensation. FAN6921ML provides: secondary-side open-loop and over-current protection, external latch triggering, adjustable over-temperature protection by RT pin and external NTC resistor, internal over-temperature shutdown, VDD pin OVP, and DET pin over-voltage for output OVP, and brownin/out for AC input voltage under-voltage protection (UVP).
The FAN6921ML controller is available in a 16-pin small outline package (SOP).

  • AC-DC Merchant Power Supply
  • Integrated PFC and Flyback Controller
  • Critical Mode PFC Controller
  • Zero-Current Detection for PFC Stage
  • Quasi-Resonant Operation for PWM Stage
  • Internal Minimum tOFF 8µs for QR PWM Stage
  • Internal 10ms Soft-Start for PWM
  • Brownout Protection
  • H/L Line Over-Power Compensation
  • Latched Protection (FB Pin)
  • Over-Power/ Overload Protection
  • Short-Circuit Protection
  • Open-Loop Protection
  • Externally Latch Triggering (RT Pin)
  • Adjustable Over-Temperature Latched (RT Pin)
  • VDD Pin & Output Voltage OVP (Latched)
  • Internal Temperature Shutdown (140°C)

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Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

PFC Mode

Frequency Operation

Control Mode

Topology

fSW Typ (kHz)

VCC Max (V)

Drive Cap. (mA)

UVLO (V)

Latch

UVP

Inhibition

Reference Price

FAN6921MLMY

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Active, Not Rec

CAD Model

Pb

A

H

P

SOIC-16

3

260

REEL

2500

N

CrCM/BCM

Variable

Voltage Mode

Step-Up

Variable

30

550 / 700

18

Yes

Yes

No

$0.8209

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