Controllers | FAN6754WAMR

Green-Mode PWM Controller for Flyback Converter, 65KHz, Brown In/Out Protection

Obsolete

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Overview

The highly integrated FAN6754A PWM controller provides several features to enhance the performance of flyback converters. To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to continuously decrease the switching frequency under light-load conditions.
Under zero-load and very light-load conditions, FAN6754A saves PWM pulses by entering deep burst mode. This burst mode function enables the power supply to meet international power conservation requirements.
FAN6754A integrates a frequency-hopping function internally to reduce EMI emission of a power supply with minimum line filters. Built-in synchronized slope compensation is accomplished by proprietary HV monitor to adjust VLimit for constant output power limit over universal AC input range. The gate output is clamped at 13V to protect the external MOSFET from over-voltage damage.
Other protection functions include AC input brownout protection with hysteresis, SENSE pin short-circuit protection, and VDD over-voltage protection. For overtemperature protection, an external NTC thermistor can be applied to sense the external switcher’s temperature. When VDD OVP or OTP are activated, an internal latch circuit is used to latch-off the controller. The latch mode is reset when the VDD supply is removed.
FAN6754A is available in an 8-pin SOP package.

  • Notebook PC
  • LCD Monitor
  • LCD TV

  • High-Voltage Startup
  • AC Input Brownout Protection with Hysteresis• Monitor HV to Adjust VLimit
  • Low Operating Current: 1.5mA
  • Linearly Decreasing PWM Frequency to 22KHz
  • Frequency Hopping to Reduce EMI Emission
  • Fixed PWM Frequency: 65KHz
  • Peak-Current-Mode Control
  • Cycle-by-Cycle Current Limiting
  • Leading-Edge Blanking (LEB)
  • Internal Open-Loop Protection
  • GATE Output Maximum Voltage Clamp: 13V
  • VDD Under-Voltage Lockout (UVLO)
  • VDD Over-Voltage Protection (OVP)
  • Programmable Over-Temperature Protection (OTP)
  • Open-Loop Protection (OLP); Restart for MR, Latch for ML
  • Internal Latch Circuit (OVP, OTP)
  • Built-in 8ms Soft-Start Function
  • SENSE Short-Circuit Protection (SSCP)

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FAN6754WAMRMY

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Obsolete

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CAD Model

Pb

A

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Reliability Data

Die Related Summary Data

Device: FAN6754WAMRMY

Equivalent to wafer fab process: BJ

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

BJ

0

1028543596

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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