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PDF FSDM0265RNB Data sheet ( Hoja de datos )

Número de pieza FSDM0265RNB
Descripción Green Mode Fairchild Power Switch
Fabricantes Fairchild Semiconductor 
Logotipo Fairchild Semiconductor Logotipo



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www.fairchildsemi.com
FSDM0265RNB
Green Mode Fairchild Power Switch (FPSTM)
Features
• Internal Avalanche Rugged Sense FET
• Consumes only 0.65W at 240VAC & 0.3W load with
Advanced Burst-Mode Operation
www.DataSheet4U.Fcroemquency Modulation for EMI Reduction
• Precision Fixed Operating Frequency
• Internal Start-up Circuit
• Pulse-by-Pulse Current Limiting
• Over Voltage Protection (OVP)
• Over Load Protection (OLP)
• Internal Thermal Shutdown Function (TSD)
• Auto-Restart Mode
• Under Voltage Lockout (UVLO)
• Low Operating Current (3mA)
• Adjustable Peak Current Limit
• Built-in Soft Start
Applications
• SMPS for VCR, SVR, STB, DVD & DVCD Player
• SMPS for Printer, Facsimile & Scanner
• Adapter for Camcorder
Related Application Notes
• AN-4137, 4141, 4147(Flyback) / AN-4134(Forward)
Description
The FSDM0265RNB consists of an integrated Pulse Width
Modulator (PWM) and Sense FET, and is specifically
designed for high performance off-line Switch Mode Power
Supplies (SMPS) with minimal external components. This
devices is an integrated high voltage power switching regu-
lator which combines an avalanche rugged Sense FET with a
current mode PWM control block. The integrated PWM con-
troller features include: a fixed oscillator with frequency
modulation for reduced EMI, Under Voltage Lock Out
(UVLO) protection, Leading Edge Blanking (LEB), an opti-
mized gate turn-on/turn-off driver, Thermal Shut Down
(TSD) protection and temperature compensated precision
current sources for loop compensation and fault protection
circuitry. The FSDM0265RNB offers better performance in
Soft Start than FSDM0265RN. When compared to a discrete
MOSFET and controller or RCC switching converter solu-
tion, the FSDM0265RNB reduces total component count,
design size, weight while increasing efficiency, productivity
and system reliability. This device provides a basic platform
that is well suited for the design of cost-effective flyback
converters.
FPSTM is a trademark of Fairchild Semiconductor Corporation.
©2005 Fairchild Semiconductor Corporation
OUTPUT POWER TABLE
PRODUCT
230VAC ±15%(3)
Adapt- Open
er(1) Frame(2)
85-265VAC
Adapt- Open
er(1) Frame(2)
FSDM0265RNB 16W
27W
13W
20W
FSDL0365RNB 19W
30W
16W
24W
FSDM0365RNB 19W
30W
16W
24W
Notes:
1. Typical continuous power in a non-ventilated enclosed
adapter with sufficient drain pattern as a heat sinker, at
50°C ambient.
2. Maximum practical continuous power in an open frame
design with sufficient drain pattern as a heat sinker, at 50°C
ambient.
3. 230 VAC or 100/115 VAC with doubler.
Typical Circuit
AC
IN
Vstr Drain
Ipk
PWM
Vfb Vcc Source
DC
OUT
Figure 1. Typical Flyback Application
Rev.1.0.4

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FSDM0265RNB pdf
Electrical Characteristics
(Ta = 25°C unless otherwise specified)
Parameter
SENSE FET SECTION
Symbol
Zero-Gate-Voltage Drain Current
IDSS
Drain-Source On-State Resistance(1)
Input Capacitance
www.DataSheet4UO.cuotmput Capacitance
Reverse Transfer Capacitance
Turn-On Delay Time
Rise Time
Turn-Off Delay Time
Fall Time
CONTROL SECTION
Switching Frequency
Switching Frequency Modulation
Switching Frequency Variation(2)
Maximum Duty Cycle
Minimum Duty Cycle
UVLO Threshold Voltage
Feedback Source Current
Internal Soft Start Time
BURST MODE SECTION
Burst Mode Voltage
PROTECTION SECTION
Peak Current Limit
Current Limit Delay Time(3)
Thermal Shutdown Temperature
Shutdown Feedback Voltage
Over Voltage Protection
Shutdown Delay Current
Leading Edge Blanking Time
TOTAL DEVICE SECTION
Operating Supply Current (control part only)
Start-Up Charging Current
Vstr Supply Voltage
RDS(ON)
CISS
COSS
CRSS
td(on)
tr
td(off)
tf
fOSC
fMOD
fOSC
DMAX
DMIN
VSTART
VSTOP
IFB
tS/S
VBURH
VBURL
ILIM
tCLD
TSD
VSD
VOVP
IDELAY
tLEB
IOP
ICH
VSTR
Condition
VDS=650V, VGS=0V
VDS=520V, VGS=0V,
TC=125°C
VGS=10V, ID=0.5A
VGS=0V, VDS=25V,
f=1MHz
VDS=325V, ID=1.0A
-25°C Ta 85°C
VFB=GND
VFB=GND
VFB=GND
VFB=4V
-
-
Max. inductor current
-
VFB=4V
VCC=14V
VCC=0V
VCC=0V
Note:
1. Pulse test: Pulse width 300us, duty 2%
2. These parameters, although guaranteed, are tested in EDS (wafer test) process
3. These parameters, although guaranteed, are not 100% tested in production
FSDM0265RNB
Min. Typ. Max. Unit
- - 50 µA
- - 200 µA
- 5.0 6.0
- 550 -
pF
- 38 - pF
- 17 - pF
- 20 - ns
- 15 - ns
- 55 - ns
- 25 - ns
61 67 73 KHz
±1.5 ±2.0 ±2.5 KHz
- ±5 ±10 %
62 67 72 %
0 0 0%
11 12 13 V
789V
0.7 0.9 1.1 mA
10 15 20 ms
0.4 0.5 0.6
0.25 0.35 0.45
V
V
1.3 1.5 1.7
- 500 -
125 140
-
5.5 6.0 6.5
18 19
-
3.5 5.0 6.5
200 -
-
A
ns
°C
V
V
µA
ns
135
0.7 0.85 1.0
35 -
-
mA
mA
V
5

5 Page





FSDM0265RNB arduino
FSDM0265RNB
Burst
Operation
VFB
Burst
Operation
Normal
Operation
VBURH
VBURL
Current
Waveform
www.DataSheet4U.com
Switching
OFF
Switching
OFF
VBURH
+
-
VBURL/VBURH
Vcc Vcc
Vcc
IBUR(pk)
Vfb
3
IDELAY
IFB Normal
2.5R
R
Burst
PWM
MOSFET
Current
Figure 8. Burst Operation Function
Frequency (MHz)
Figure 10. KA5-series FPS Full Range EMI scan(67KHz,
no Frequency Modulation) with DVD Player SET
7. Frequency Modulation : Modulating the switching fre-
quency of a switched power supply can reduce EMI. Fre-
quency modulation can reduce EMI by spreading the energy
over a wider frequency range than the bandwidth measured
by the EMI test equipment. The amount of EMI reduction is
directly related to the depth of the reference frequency. As
can be seen in Figure 9, the frequency changes from 65KHz
to 69KHz in 4ms for the FSDM0265RNB. Frequency modu-
lation allows the use of a cost effective inductor instead of an
AC input mode choke to satisfy the requirements of world
wide EMI limits.
Frequency (MHz)
Figure 11. FSDX-series FPS Full Range EMI Scan (67KHz,
with Frequency Modulation) with DVD Player SET
fs=1/ts
69kHz
67kHz
65kHz
Drain
Current
ts
4ms t
Figure 9. Frequency Modulation Waveform
11

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