FAN6754WAMR: Green-Mode PWM Controller for Flyback Converter, 65KHz, Brown In/Out Protection
Description: The highly integrated FAN6754A PWM controller prov...
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.
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
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)
Technical Documentation & Design Resources
Availability and Samples
Compliance: Pb-free Halide free
Description: Green-Mode PWM Controller for Flyback Converter, 65KHz, Brown In/Out Protection
Package Type: SOIC-8
Package Case Outline: 751EB
Container Type: REEL
Container Qty: 2500
VCC Min (V):
VCC Max (V):
fSW Typ (kHz):