Fairchild

FAN6754 Datasheet PDF – PWM Controller – 6754MR Fairchild

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Part Number: FAN6754, 6754MR

Function: Highly Integrated Green-Mode PWM Controller

Manufacturer: Fairchild Semiconductor

Package: SOP 8 Pin Type

Image:

FAN6754 Image

 

Description

Obsolete as of 25-Nov-2012,

The highly integrated IC 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, The Device saves PWM pulses by entering deep burst mode. This burst mode function enables the power supply to meet international power conservation requirements.

FAN6754 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. Also, 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 and VDD over-voltage protection. For over-temperature 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.

Block Diagram :

FAN6754 datasheet

Features

1. High-Voltage Startup

2. AC Input Brownout Protection with Hysteresis

3. Monitor HV to Adjust VLimit

4. Low Operating Current: 1.7mA

5. Linearly Decreasing PWM Frequency to 22KHz

6. Frequency Hopping to Reduce EMI Emission

7 Fixed PWM Frequency: 65KHz

FAN6754 Datasheet PDF Download

FAN6754 pdf

Other data sheets are available within the file:  FAN6754MLMY, FAN6754MRMY

 

CMO765R Datasheet – Green Mode Fairchild Power Switch

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Part Number: CMO765R

Correct P/N: CM0765R

Function: Green Mode Fairchild Power Switch

Package: D2-PAK-5L, TO-220-5L Type

Manufacturer: Fairchild Semiconductor

Image:
CMO765R datasheet

Description

The FSCM0765R, CMO765R is an integrated Pulse Width Modulator (PWM) and SenseFET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high voltage power switching regulator which combines an avalanche rugged SenseFET with a current mode PWM control block.

What is Green Mode Fairchild Power Switch?

Green Mode Fairchild Power Switch is a type of power switch that is designed for use in power supplies and other applications that require high efficiency and low power consumption. It is a type of switching regulator that uses a pulse width modulation (PWM) technique to regulate the output voltage.

The Green Mode Fairchild Power Switch is named after its environmentally friendly design, which minimizes power loss and reduces energy consumption. It is designed to operate in a low-power standby mode when there is no load demand, which helps to conserve energy and reduce standby power consumption.

Features

1. Internal Avalanche Rugged SenseFET
2. Low Start-up Current (max 40uA)
3. Low Power Consumption under 1 W at 240VAC and 0.4W Load
4. Precise Fixed Operating Frequency (66kHz)
5. Frequency Modulation for low EMI
6. Pulse by Pulse Current Limiting (Adjustable)
7. Over Voltage Protection (OVP)
8. Over Load Protection (OLP)
9. Thermal Shutdown Function (TSD)
10. Auto-Restart Mode
11. Under Voltage Lock Out (UVLO) with Hysteresis
12. Built-in Soft Start (15ms)

Application

1. SMPS for VCR, SVR, STB, DVD and DVCD
2. Adaptor
3. SMPS for LCD Monitor

 

Other data sheets are available within the file: CM0765R, CMO565RG, CMO565RI, CMO565RJ, CMO765

CMO765R Datasheet PDF Download


CMO765R pdf