Fairchild FSD200 Manual Download

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FSD200

Typical application circuit

2. Buck Convertor

FSD21x

Vstr

Vcc

Dra

GND

Vfb

GND

ZD1

1N759A

UF4004

2N3904

100

4.7uF/400V

12V

GND

R1 100

680uF 16V

Vin,dc

10uF/50V

GND

47uF 25V

1mH

750

UF4004

10uF/50V

4.7uF/400V

5.6k

12V

1mH

2N3904

ZD1

1N759A

Vin,dc

100

4.7uF/50V

680uF 16V

GND

R1 100

UF4004

750

47uF 25V

FSD20x

Vstr

Vcc

Dra

GND

Vfb

GND

UF4004

Quantity

0.5A/700V

12V 0.5W

Ic=200mA, Vce=40V

1A/1000V Ultra Fast Diode

Description

Iover=0.3A, Fairchild

FSD210
(FSD200)

DO-35 Type

1N759A

ZD1

TO-92 Type

2N3904

DO41 Type

UF4007

D1,D2

Requirement/Comment

Part #

Reference

Quantity

0.5A/700V

12V 0.5W

Ic=200mA, Vce=40V

1A/1000V Ultra Fast Diode

Description

Iover=0.3A, Fairchild

FSD210
(FSD200)

DO-35 Type

1N759A

ZD1

TO-92 Type

2N3904

DO41 Type

UF4007

D1,D2

Requirement/Comment

Part #

Reference

Summary of Contents for FSD200

Page 1: ...egrated PWM controller features A fixed oscillator with frequency modulation for reduced EMI Under voltage lock out Leading edge blanking LEB Optimized gate turn on turn off driver Thermal shut down p...

Page 2: ...rload protection OLP There is a time delay due to the 5uA current source which prevents false triggering under transient conditions but still allows the protection mechanism to operate under true over...

Page 3: ...2 kHz 4 Feedback Source Current Ifb Vfb 0V 0 22 0 25 0 28 mA Maximum Duty Cycle Dmax Vfb 3 5V 60 64 68 Minimum Duty Cycle Dmin Vfb 0V 0 0 0 Supply Regulation High Voltage Vregh 7 V Supply Regulation L...

Page 4: ...100 125 O perating Current Temp O u tput Frequ enc y 0 0 2 0 4 0 6 0 8 1 1 2 25 0 25 50 75 100 125 Fos c Figure 3 Peak Current Limit vs Temp Figure 4 Feedback Source Current vs Temp Over Current 0 00...

Page 5: ...raphs are normalized at Ta 25 C Figure 7 On State Resistance vs Temp Figure 8 Breakdown Voltage vs Temp On_State_Resistance 0 0 2 0 4 0 6 0 8 1 1 2 1 4 1 6 1 8 2 40 25 0 25 50 75 100 125 Rds on Breakd...

Page 6: ...FSD200 6 Typical Circuit FSD200 Snubber Circuit PWM Feedback Circuit Load...

Page 7: ...r a short time after the MOSFET is turned on Figure 3 PWM and feedback circuit 4 Protection Circuit The FSD200 210 has 2 self protection functions over load protection OLP and thermal shutdown TSD Bec...

Page 8: ...erefore once Vfb reaches 3V the device is switching at maximum power At this point the 250uA current source is blocked and the 5uA source continues to charge Cfb Once Vfb reaches 4V switching stops Th...

Page 9: ...tage to rise Once is passes 0 6V switching starts again The feedback voltage falls and the process repeats Burst mode operation alternately enables and disables switching of the power MOSFET to reduce...

Page 10: ...c ific a tio n W in d in g s p e c ific a tio n 4 4 E le c tric a l c h a ra c te ris tic E le c tric a l c h a ra c te ris tic IN S U L A T IO N P O L Y E S T E R T A P E t 0 0 2 5 m m 1 0 m m 3 T s...

Page 11: ...ND R1 100 D1 UF4004 R3 750 C3 47uF 25V U1 FSD20x 8 5 7 1 4 2 3 Vstr Vcc Drain GND Vfb GND GND D2 UF4004 1 1 1 2 Quantity 0 5A 700V 12V 0 5W Ic 200mA Vce 40V 1A 1000V Ultra Fast Diode Description Iover...

Page 12: ...FSD200 12 Package Dimensions 7 DIP...

Page 13: ...FSD200 13 Ordering Information Product Number Package Rating Topr C FSD200 7DIP 700V 0 5A 25 C to 85 C...

Page 14: ...nstructions for use provided in the labeling can be reasonably expected to result in a significant injury of the user 2 A critical component in any component of a life support device or system whose f...

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