FSD200_NL Fairchild Semiconductor, FSD200_NL Datasheet - Page 12

• Manufacturer Part Number: FSD200_NL
• Manufacturer: Fairchild Semiconductor

Specifications of FSD200_NL

• Power Switch Family: FSD200
• Input Voltage: -0.3 to 6.7V
• Power Switch On Resistance: 28Ohm
• Number Of Outputs: Single
• Mounting: Through Hole
• Supply Current: 600uA
• Package Type: PDIP
• Operating Temperature (min): -25C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Pin Count: 7
• Lead Free Status / Rohs Status: Compliant

FSD210, FSD200
Typical application circuit
Features
• High efficiency (>67% at Universal Input)
• Low zero load power consumption (<100mW at 240Vac) with FSD210
• Low component count
• Enhanced system reliability through various protection functions
• Internal soft-start (3ms)
• Frequency Modulation for low EMI
Key Design Notes
• The constant voltage (CV) mode control is implemented with resistors, R8, R9, R10 and R11, shunt regulator, U2, feedback
• The constant current (CC) mode control is designed with resistors, R8, R9, R15, R16, R17 and R19, NPN transistor, Q1 and
• The NTC(negative thermal coefficient) is used to compensate the temperature characteristics of the transistor Q1.
1. Schematic
12
Cellular Phone Charger
capacitor, C9 and opto-coupler, U3.
NTC, TH1. When the voltage across current sensing resistors, R15,R16 and R17 is 0.7V, the NPN transistor turns on and the
current through the opto coupler LED increases. This reduces the feedback voltage and duty ratio. Therefore, the output
voltage decreases and the output current is regulated.
Application
AC
AC
1W, 10R
For FSD21x
Fuse
1N4007
1N4007
D1
D3
FSD210
1N4007
D4
1N4007
U1
D2
8
Output power
Vstr
4.7UF 400V
C1
3.38W
Vcc
Vfb
L1 330uH
R1 4.7k
100nF
C4
5
4
H11A817B
4.7uF 400V
C2
C5
UF4007
33uF 50V
47k
R3
47k
R4
Universal input (85-265Vac)
D5
1N4148
D6
4.7M 1/4W
102k 1kV
C3
39R
C6 152M-Y, 250Vac
R6
Input voltage
R5
1
1
2
3
4
4.7M, 1/4W
TX1
R7
7
8
KSP2222A
SB260
D7
Q1
0
TH1 10k
C7
330uF 16V
4.7uF 50V
C10
510R
R8
R19
510R
Output voltage (Max current)
R9
56R
U3
H11A817B
U2
TL431
0
C9 470nF
4uH
R15 3R0
R16 3R0
R17 3R0
L3
2.2k
5.2V (650mA)
R10
0
R12
2k
330uF 16V
C8
(5.2V/0.65A)
Vo
.