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FSD200
Operator's Manual

Fairchild FSD200 Operator's Manual

Manual is about: Green Mode Fairchild Power Switch (FPS)

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Rev.1.0.3

Features

• Single Chip 700V Sense FET Power Switch

• Precision Fixed Operating Frequency (134kHz)

• Advanced Burst-Mode operation Consumes under 0.1W

at 265Vac and no load (FSD210 only)

• Internal Start-up Switch and Soft Start

• Under Voltage Lock Out (UVLO) with Hysteresis

• Pulse by Pulse Current Limit

• Over Load Protection (OLP)

• Internal Thermal Shutdown Function (TSD)

• Auto-Restart Mode

• Frequency Modulation for EMI

• FSD200 does not require an auxiliary bias winding

Applications

• Charger & Adaptor for Mobile Phone, PDA & MP3

• Auxiliary Power for White Goods, PC, C-TV & Monitor

Description

The FSD200 and FSD210 are integrated Pulse Width Modu-

lators (PWM) and Sense FETs specially designed for high

performance off-line Switch Mode Power Supplies (SMPS)

with minimal external components. Both devices are mono-

lithic high voltage power switching regulators which com-

bine an LDMOS Sense FET with a voltage mode PWM

control block. The integrated PWM controller features in-

clude: a fixed oscillator with frequency modulation for re-

duced EMI, Under Voltage Lock Out (UVLO) protection,

Leading Edge Blanking (LEB), optimized gate turn-on/turn-

off driver, thermal shut down protection (TSD), temperature

compensated precision current sources for loop compensa-

tion and fault protection circuitry. When compared to a dis-

crete MOSFET and controller or RCC switching converter

solution, the FSD200 and FSD210 reduce total component

count, design size, weight and at the same time increase effi-

ciency, productivity, and system reliability. The FSD200

eliminates the need for an auxiliary bias winding at a small

cost of increased supply power. Both devices are a basic plat-

form well suited for cost effective designs of flyback convert-

ers.

Table 1. Notes: 1. Typical continuous power in a non-ven-

tilated enclosed adapter measured at 50

C ambient. 2.

Maximum practical continuous power in an open frame

design at 50

C ambient. 3. 230 VAC or 100/115 VAC with

doubler.

Typical Circuit

Figure 1. Typical Flyback Application using FSD210

Figure 2. Typical Flyback Application using FSD200

OUTPUT POWER TABLE

PRODUCT

230VAC

15%

(3)

85-265VAC

Adapter

(1)

Open

Frame

(2)

Adapter

(1)

Open

Frame

(2)

FSD210

FSD200

FSD210M

FSD200M

Drain

Source

Vstr

Vfb

Vcc

PWM

OUT

Drain

Source

Vstr

Vfb

Vcc

PWM

OUT

FSD210, FSD200

Green Mode Fairchild Power Switch (FPS

)

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Summary of FSD200

Page 1
©2004 fairchild semiconductor corporation www.Fairchildsemi.Com rev.1.0.3 features • single chip 700v sense fet power switch • precision fixed operating frequency (134khz) • advanced burst-mode operation consumes under 0.1w at 265vac and no load (fsd210 only) • internal start-up switch and soft star...
Page 2
Fsd210, fsd200 2 internal block diagram figure 3. Functional block diagram of fsd210 figure 4. Functional block diagram of fsd200 showing internal high voltage regulator 8 5 uvlo voltage ref h vstr vcc internal bias l rsense iover s/s 3ms 4 1, 2, 3 7 osc s r q tsd s r q leb olp reset a/r driver freq...
Page 3
Fsd210, fsd200 3 pin definitions pin configuration figure 5. Pin configuration (top view) pin number pin name pin function description 1, 2, 3 gnd sense fet source terminal on primary side and internal control ground. 4 vfb the feedback voltage pin is the inverting input to the pwm comparator with n...
Page 4
Fsd210, fsd200 4 absolute maximum ratings (ta=25 ° c unless otherwise specified) thermal impedance note: 1. Free standing without heat sink. 2. Measured on the gnd pin close to plastic interface. 3. Soldered to 100mm 2 copper clad. 4. Soldered to 300mm 2 copper clad. Parameter symbol value unit maxi...
Page 5
Fsd210, fsd200 5 electrical characteristics (ta=25 ° c unless otherwise specified) note: 1. These parameters, although guaranteed, are not 100% tested in production 2. This parameter is derived from characterization parameter symbol condition min. Typ. Max. Unit sense fet section drain-source breakd...
Page 6
Fsd210, fsd200 6 comparison between fsdh565 and fsd210 function fsdh0565 fsd210 fsd210 advantages soft-start not applicable 3ms • gradually increasing current limit during soft-start further reduces peak current and voltage component stresses • eliminates external components used for soft-start in m...
Page 7
Fsd210, fsd200 7 typical performance characteristics (these characteristic graphs are normalized at ta=25℃) frequency vs. Temp operating current vs. Temp peak current limit vs. Temp feedback source current vs. Temp vstop voltage vs. Temp 0.0 0.2 0.4 0.6 0.8 1.0 1.2 -25 0 25 50 75 100 125 junction te...
Page 8
Fsd210, fsd200 8 typical performance characteristics (continued) (these characteristic graphs are normalized at ta=25℃) on state resistance vs. Temp breakdown voltage vs. Temp 0.0 0.2 0.4 0.6 0.8 1.0 1.2 -25 0 25 50 75 100 125 junction temperature (℃) v cc reg u la ti o n v o lt a g e (v ) 0.0 0.2 0...
Page 9
Fsd210, fsd200 9 functional description 1. Startup : at startup, the internal high voltage current source supplies the internal bias and charges the external vcc capacitor as shown in figure 7. In the case of the fsd210, when vcc reaches 8.7v the device starts switching and the internal high voltage...
Page 10
Fsd210, fsd200 10 reliability is improved without a cost increase. If either of these thresholds are triggered, the fps starts an auto-restart cycle. Once the fault condition occurs, switching is termi- nated and the sense fet remains off. This causes vcc to fall. When vcc reaches the uvlo stop volt...
Page 11
Fsd210, fsd200 11 standby mode. Figure 12. Circuit for burst operation figure 13. Burst mode operation 7. Frequency modulation : emi reduction can be accom- plished by modulating the switching frequency of a smps. Frequency modulation can reduce emi by spreading the energy over a wider frequency ran...
Page 12
Fsd210, fsd200 12 typical application circuit features • high efficiency (>67% at universal input) • low zero load power consumption ( • low component count • enhanced system reliability through various protection functions • internal soft-start (3ms) • frequency modulation for low emi key design no...
Page 13
Fsd210, fsd200 13 2. Demo circuit part list 3. Transformer schematic diagram 4. Winding specification 5. Electrical characteristics to-92 type, lm431 vref=2.495v(typ.) 1 ka431az u2 iover=0.3a, fairchildsemi 0.5a/700v 1 fsd210 (fsd200) u1 - ctr 80~160% 1 h11a817a u3 do41 type 1a/1000v ultra fast diod...
Page 14
Fsd210, fsd200 14 typical application circuit features • non isolation buck converter • low component count • enhanced system reliability through various protection functions key design notes • the output voltage(12v) is regulated with resistors, r1, r2 and r3, zener diode, d3, the transistor, q1 an...
Page 15
Fsd210, fsd200 15 layout considerations (for flyback convertor) figure 17. Layout considerations for fsd2x0 using 7dip #1 : gnd #2 : gnd #3 : gnd #4 : vfb #5 : vcc #6 : n.C. #7 : drain #8 : vstr copper area for heatsink.
Page 16
Fsd210, fsd200 16 package dimensions 7-dip.
Page 17
Fsd210, fsd200 17 package dimensions (continued) 7-lsop.
Page 18
Fsd210, fsd200 6/21/04 0.0m 001 2004 fairchild semiconductor corporation 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...
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