FAN4810N

FAN4810N Datasheet

FAN4810

Part	Datasheet
FAN4810N	FAN4810N (pdf)

Related Parts	Information
FAN4810M	FAN4810M
FAN4810MX	FAN4810MX

PDF Datasheet Preview
FAN4810 Power Factor Correction Controller • TriFault Detect for UL1950 compliance and enhanced safety • Slew rate enhanced transconductance error for ultra-fast PFC response • Low power 200µA startup current, 5.5mA operating current • Low total harmonic distortion, high PF • Average current, continuous boost leading edge PFC • Current fed gain modulator for improved noise immunity • Overvoltage and brown-out protection, UVLO, and soft start • Synchronized clock output The FAN4810 is a controller for power factor corrected, switched mode power supplies. The FAN4810 includes circuits for the implementation of leading edge, average current, “boost” type power factor correction and results in a power supply that fully complies with IEC1000-3-2 It also includes a TriFault Detect function to help ensure that no unsafe conditions will result from single component failure in the PFC. Gate-driver with 1A capability minimizes the need for external driver circuit. Low power requirements improve and reduce component costs. The PFC also includes peak current limiting, input voltage brownout protection and a overvoltage comparator shuts down the PFC section in the event of a sudden decrease in load. The clock-out signal can be used to synchronize down-stream PWM stages in order to reduce system noise. Block Diagram 16 VEAO 1 IEAO VFB 15 2.5V IAC 2 VRMS 4 ISENSE 3 IEA + GAIN MODULATOR POWER FACTOR CORRECTOR 0.5V + TRI-FAULT + 2.75V OVP + -1V + PFC ILIMIT RAMP 1 7 OSCILLATOR DUTY CYCLE LIMIT VCC 17V 13 VCC 7.5V REFERENCE VREF 14 RQ SQ PFC OUT 12 6 VCC 25µA 5 CLKSD VREF 1.25V VFB 2.45V VIN OK + Ordering Information Part Number FAN4810N FAN4810M FAN4810MX PRODUCT SPECIFICATION Temperature Range 0°C to 70°C 0°C to 70°C 0°C to 70°C Package 16-Pin MDIP P16 16-Pin Narrow SOIC S16N 16-Pin Narrow SOIC in Tape & Reel DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, or c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury of the user. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 9/24/03 0.0m 001 Stock#DS30004800 2003 Fairchild Semiconductor Corporation

PDF Datasheet Preview

FAN4810

Power Factor Correction Controller
• TriFault Detect for UL1950 compliance and enhanced safety
• Slew rate enhanced transconductance error for ultra-fast PFC response
• Low power 200µA startup current, 5.5mA operating current
• Low total harmonic distortion, high PF
• Average current, continuous boost leading edge PFC
• Current fed gain modulator for improved noise immunity
• Overvoltage and brown-out protection, UVLO, and soft
start
• Synchronized clock output

The FAN4810 is a controller for power factor corrected, switched mode power supplies. The FAN4810 includes circuits for the implementation of leading edge, average current, “boost” type power factor correction and results in a power supply that fully complies with IEC1000-3-2 It also includes a TriFault Detect function to help ensure that no unsafe conditions will result from single component failure in the PFC. Gate-driver with 1A capability minimizes the need for external driver circuit. Low power requirements improve and reduce component costs. The PFC also includes peak current limiting, input voltage brownout protection and a overvoltage comparator shuts down the PFC section in the event of a sudden decrease in load. The clock-out signal can be used to synchronize down-stream PWM stages in order to reduce system noise.

Block Diagram
16 VEAO
1 IEAO

VFB 15
2.5V IAC 2

VRMS 4

ISENSE 3

IEA +

GAIN MODULATOR

POWER FACTOR CORRECTOR
0.5V +

TRI-FAULT +
2.75V

OVP +
-1V +

PFC ILIMIT

RAMP 1 7

OSCILLATOR

DUTY CYCLE

LIMIT

VCC 17V
13 VCC
7.5V REFERENCE

VREF 14

RQ SQ

PFC OUT 12
6 VCC
25µA 5

CLKSD

VREF
1.25V

VFB 2.45V

VIN OK +
Ordering Information

Part Number FAN4810N FAN4810M FAN4810MX

PRODUCT SPECIFICATION

Temperature Range 0°C to 70°C 0°C to 70°C 0°C to 70°C

Package 16-Pin MDIP P16 16-Pin Narrow SOIC S16N 16-Pin Narrow SOIC in Tape & Reel

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, or c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury of the user.

A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
9/24/03 0.0m 001 Stock#DS30004800 2003 Fairchild Semiconductor Corporation

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Datasheet ID: FAN4810N 513897