Fairchild Power Switch

Fairchild Power Switch

Sep, 2004Power Conversion

• Green FPSTM is used in low standby power applications that

meet the less-than-one-Watt standards (i.e. Energy Star)

• Green FPS supports environmentally friendly systems

(Coffee Pot not in use and plugged into the wall uses less

than 1 Watt standby power)

• Green FPS is an integrated solution of many protection &

control features built with the power switch MOSFET in a

very small package

• These highly integrated devices are proprietary and they do

not have an exact competitive cross reference match

Green FPS – A Subset of FPS

TO-3P-5L

TO-3PF-5L

TO-220-5L

TO-220F-5L TO-220F-4L

8DIP 8DIPH7DIP

Available Packages

GFPS for Low Power Applications

• Power Range : 2 ~ 10Watt

• System Configuration– Flyback 1 output– Constant Voltage + Constant Current

• Development Direction– Achieve compact size power switch– Low std by power consumption

• 0.3Watt 0.1Watt 60mWatt

– No Y cap solution (Motorola Charger)– No bias winding to reduce BOM cost

• FSC Solution– FSD200 : No bias winding solution– FSD210 : No Y-cap & low std by– FSDX321: 10Watt ~ for Auxiliary PS

Ultra Portable - Mobile Phone - Camcorder - PDA /MD/CD - Digital Camera

Auxiliary PS - White Goods - PC SMPS

GNDGND VstrVstr

VFBVFB VccVcc

GNDGND

GNDGND

DrainDrain

GNDGND VstrVstr

VFBVFB VccVcc

GNDGND

GNDGND

DrainDrain

□ □ FeaturesFeatures

Single Chip 700V SenseFET Power Switch Precision Fixed Operating Frequency with Frequency Modulation

134kHz±4kHz Internal Start-up Switch & Soft Start up Under Voltage Lockout with Hysterisis

8.7V/6.7V (FSD210), 7V/6V (FSD200) Over Load Protection (OLP) Auto-restart mode

□ □ AdvantagesAdvantages

Low Power Consumption in Standby Mode (Burst Operation)

0.10W under @240Vac (FSD210) Minimum External Components

Without bias winding, resistor, diode (FSD200)

FSD200 / FSD210 2nd generation 1Chip FPS

RsenseIover

S/S3mS

4

1, 2, 3

7

OSC

S

R

Q

TSD

S

R

Q

LEB

OLP

Reset

UVLO Reset(Vcc<6V)

DRIVER

FrequencyModulation

5uA 250uA

Vck

Vth

SFET

Drain

GND

Vfb

BURST

VSD

VBURST

7V

1

7

UVLOVoltage

Ref.

HV/REG

INTERNALBIAS

ON/OFF

Vstr

Vcc

Built-in Start up.

Peak Current Limit

Burst Control

Protection

Frequency Modulation

Voltage Mode Control

Soft Start

Block Diagram of FSD200

8

5

UVLOVoltage

Ref.

Vcc < 6.7V

Vstr

Vcc

InternalBias

Vcc > 8.7V

RsenseIover

S/S3mS

4

1, 2, 3

7

OSC

S

R

Q

TSD

S

R

Q

LEB

OLP

Reset

UVLO Reset(Vcc<6.7V)

DRIVER

FrequencyModulation

5uA 250uA

Vck

Vth

SFET

Drain

GND

Vfb

BURST

VSD

VBURST

Built-in Start up.

Peak Current Limit

Burst Control

Protection

Frequency Modulation

Voltage Mode Control

Soft Start

Block Diagram of FSD210

5V

R5

39R

VoD7

SB260

L2 open

TX1

R102.2K

C7330uF 16VC3

102k 1kV

R951

U2TL431

C8330uF 16V

C4100nF

AC

0

R11 0

D11N4007

H11A817A

L3

3.9uH

D6

UF4004

D31N4007

C9 470nF

C24.7uF 400V

0

C533uF 50V

U1FSD210

8

5

7

1

4

2 3

Vstr

Vcc

Dra

in

GN

D

Vfb

GN

D

GN

D

AC

D41N4007

H11A817AU3

R7

4.7M, 1/4W

R8560

R447k

L1 330uH

D5UF4007

C6 152M-Y, 250Vac

R1 4.7k

R2 0

R122.2K

R347k

D21N4007

.

R6

4.7M 1/4W

C1

4.7UF 400V

C104.7uF 50V

Fuse

1W, 10R

FSD200 does not require components in red block

FSD210 does not require Y-cap components in blue block

Low cost EMI filter by Frequency Modulation

System Circuit Diagram

VrefCfb

OLP

+

-

IsenseVfb Offset

5uA

R1mA

Error Latch

FB2.5R

2.5R+R=2.8K

PWM

+

-

Optocoupler

Vo

PWM Latch

7.5V

FPS Protection - Over Load

With Frequency Modulation, freq =134kHz

Dead line for Peak level

Dead line for Average level

Peak wave form

Average wave form

Without Frequency Modulation, freq =100kHz

138kHz

138kHz

134kHz

130kHz8kHz

Turn-on Turn-offpoint

InternalOscillator

Drain toSourcevoltage

VdsWaveform

Drain toSourcecurrent

• Fixed frequency oscillators generate EMI in a narrow band of the frequency spectrum• Fairchild’s latest FPSTM devices modulate its frequency over a ±4kHz frequency range• EMI is thus spread over a wider range of frequencies• Allows simple EMI filters to be employed for meeting worldwide EMI requirements

Features: Frequency Modulation for EMI

Burst operation @ 85Vac, No load

Burst operation @ 265Vac, No load

#1 Drain, #3 Vfb, #4 Idrain

VFB

Vds

Hysteresys

Ids

Vo

Voset

time

Burst Operation Waveforms

Start up @ 265Vac Start up @ 85Vac or short circuit

• The built in startup provides trickle current until the supply reaches a present supply voltage threshold called Vstart

• Switching starts and the peak current is gradually ratcheted up in fixed increments over a milliseconds

• This soft startup mechanism helps prevent high current during startup from damaging the components in the SMPS

Drain voltage

Drain current

0.2A

0.25A

0.3A3mS

Iover

FSD2x0

I(A)

t

Features: Built in Start up with Soft Start

R21300R

ZD115V

Vo

C14

470nF

0

D41N4007

.

Fuse

1W, 10R

L2

4uH

D21N4007

R1

4.7k

L1

330uH

TX1

U1FSD210

8

5

71

4

2 3

Vstr

Vcc

Dra

inG

ND

Vfb

GN

DG

ND

R1151R

PC1/B

13

C533uF 50V

D31N4007

C410nF/50V

C15104

U2TL431

R20

150R

D5UF4007

D11

SB260

0

R115R1

R122R2

C?

47pF/50V

R?

12R

R12510R R13

2.2k

Q22N2222

D6

BAV103

12

C11330uF 16V

C204.7uF 50V

R142k

AC

PC1/APC817

C?10nF/1kV

C14.7UF 400V

L?

BEAD

D11N4007

R16510R

AC

C2

4.7uF 400V

TH1

10k

R347k

R132R2

R?470R

C3102k 1kV C12

330uF 16V

(5.1V/0.70A)

R447k

0

R5

22R

Application Circuit with FSD210 For No Y-cap Solution

AVERAGE & PEAKAVERAGE & PEAK QUASI PEAKQUASI PEAK

•TEST EQUIPMENT : Rohde & Schwarz EMI Test Receiver, ESCS30•SAMSUNG TA CHARGER SET

(MADE BY DONGYANG:KR) •TEST CONDITION : Vo=5.1V, Io=600mA

EMI Test Result with FSD210 For No Y-cap Solution

VIN,AC Power Loss (No Load) Remark

85 [VAC] 53 [mW] SAMSUNG TA CHARGER SET

(MADE BY DONGYANG:KR)

TEST EQUIPMENT :

YOKOGAWA WT210

TEST CONDITION :

Vo=5.1V, No laod

110 [VAC] 55 [mW]

220 [VAC] 78 [mW]

230 [VAC] 79 [mW]

240 [VAC] 79 [mW]

265 [VAC] 85 [mW]

Stand-by Power Loss at Output No Load ConditionStand-by Power Loss at Output No Load Condition

Stand-by Power Loss Test Result with FSD210

R8.2K

R3750

R680K

GND

Q1

KSP2222A

R1 110

GND

R2110

D2

UF4004

L1

1mH

VOUT(12V/100mA)

D3(ZD)1N759A

U1FSD21x

8

5

7

1

42 3

Vstr

Vcc

Drai

n

GND

VfbGN

D

GND

0

C547uF 50V

VINDC

C41000uF 16V

C14.7uF/400V

C247nF/50V

D1

UF4004

BUCK Converter Circuit with FSD210

Generation FSDH0165D FSDM311FSD200

FSD210

Voltage Rating

650V (1chip LDMOS)650V (2chip VDMOS)

High Reliability VDMOS

700V (1chip LDMOS) High Reliability 700V

PKG 8DIP

8DIP / 8SMDWide Creepage Small Size PCB

7DIP / 7SMD Wide Creepage Small Size PCB

Standby Power

Under 0.2W Under 0.2W Under 0.1W ; FSD210

Switching Frequency

100KHz 70KHz

134KHz Small Size Transformer

Frequency Modulation Low EMI

Features Built-in Start up

Built-in Start up Internal Soft Start

Over Voltage Protection


No Bias Winding ; FSD200 Thermal Shutdown

Package DRAIN

DRAIN

DRAIN

Vstr NC

GND

Vcc

Vfb

DRAIN

Vstr

VccVfb

GND

GND

GND

Vcc

DRAIN

GND

GNDGND

Vstr

Vfb

GND

FPS Solution for Charger & Adaptor

Device

Function Protection Option

PKGVdmax

(V)

Ipeak

(A)

Pin(max)(1)

85-265VAC

Fopr

(KHz)

Rds(on)

Max ()OLP OCL OVP TSD

KA5x0165RN 650 0.6 10 100/70/50 10.0 YES YES YES YES 8DIP

KA5x0165R 650 0.6 10 100/70/50 10.0 YES YES YES YES TO-220F-4L

KA5x02659RN 650 0.9 15 100/70 6.0 YES YES YES YES 8DIP

FSDM311(L) 650 0.48 7 70 19 YES NO YES YES 8DIP(8LSOP)

FSDx321(L) 650 0.7 12 100/50 19 YES YES YES YES 8DIP(8LSOP)

FSD200(M) 700 0.3 5 134(+-4) 32 YES NO NO YES 7DIP(7LSOP)

FSD210(M) 700 0.3 5 134(+-4) 32 YES NO NO YES 7DIP(7LSOP)

Protection Option – OLP(Over Load Protection), OCL(Over Current Latch), OVP(Over Voltage Protection), TSD(Thermal Shutdown)

(1) Open Frame

Pin(max) Test Condition : Flyback Converter, Discontinuous Current Mode, Dmax=0.5, Vin(dc)=100V

Green FPSTM in blue

Selection Guide for Charger/Adaptor

Generation FSDM311 V******

Voltage Rating650V (2chip VDMOS)

100% Avalanche rugged MOSFET730V (1chip VDMOS)

PKG


8DIP / 8SOP Wide Creepage Small Size PCB

Standby Power Consumption

Under 0.2W Under 0.2W

Switching Frequency

70KHz 60KHz

Peak Current Limit

Tolerance

± 10%Small Size Transformer

± 20%

Features


Over Voltage Protection (Vcc_min. 21V)

Thermal Shutdown with hysteresis

Built-in Start up

Over Voltage Protection (Vcc_min. 38V)


Comparison Table

Generation FSD200 L*****

MOSFET Rating 700V / 31.2ohm 700V / 28ohm

PKG




Under 0.2W Under 0.3W

Switching Frequency



42KHz

Features


No Bias Winding

Thermal Shutdown

Built-in Start up Inherent Soft Start

No Bias Winding


Comparison Table

FSD200FSD200

L*****

D2

R3

+

47nF

4.7uF400V

+ C8

Opto1

85-265Vac10uF50V

+

10

Np1 Ns

T1

R4

FSD200

UF4007

2.2nF1KV

+

5.1V

4.7uF400V

+C7

-+

0.6A/600V

220K1W

1mH

Opto1

Product GuideComparison Table - FSD200 vs. L*****

GenerationFSD210

FSD200T*****

Voltage Rating 700V (1chip LDMOS) 700V (1chip LDMOS)

PKG




Under 0.1W ; FSD210 Under 0.1W

Switching Frequency




Frequency Jittering Low EMI

Features


No Bias Winding ; FSD200

Thermal Shutdown

Built-in Start up

No Bias Winding


Comparison Table

FSD200FSD200

T*****

Opto12.2nF1KV

10

5.1V

+ C8

+4.7uF400V

R8

47nF

Opto1

C11

+

R3

L2

UF4007

-+

0.6A/600V

1mH

3.3nF10uF50V

FSD200

R9

+C7

Np1 Ns

T1

85-265Vac

D2

+

220K1W

R10

4.7uF400V

Comparison Table - FSD200 vs. T*****

GenerationFSD200

FSD210T******-Series

Voltage Rating 700V (1chip LDMOS) 650V (2chip LDMOS)

PKG


8DIP / 14SO Wide Creepage Small Size PCB

Peak Current Sensing

Internal Sensing by SenseFET Accurate Control

by reducing stray inductance

External Sensing Resistor


Under 0.1W ; FSD210-Series

Under 0.2W ; FSD200-Series

Under 0.1W

(Frequency Reduction)

Switching Frequency

Fixed Frequency (134KHz) Small Size Transformer

Frequency Modulation (4KHz) Low EMI

Valley Switching

(up to 200KHz using Rt/Ct at light load) Minimum Switch-on Loss

Features


No Bias Winding ; FSD200-Series

Thermal Shutdown

Built-in Start up


Primary Feedback Applicable

Comparison Table - FPSTM vs. S*******

FSD200FSD200

T*****

Opto12.2nF1KV

10

5.1V

+ C8

+4.7uF400V

R8

47nF

Opto1

C11

+

R3

L2

UF4007

-+

0.6A/600V

1mH

3.3nF10uF50V

FSD200

R9

+C7

Np1 Ns

T1

85-265Vac

D2

+

220K1W

R10

4.7uF400V

Comparison Table - FPSTM vs. S*******

Fairchild Power Switch

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