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PDF FSDM311A Data sheet ( Hoja de datos )
| Número de pieza | FSDM311A | |
| Descripción | Green Mode Fairchild Power Switch | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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November 2007
FSDM311A
Green Mode Fairchild Power Switch (FPS™)
Features
Internal Avalanche-Rugged SenseFET
Precision Fixed Operating Frequency: 67KHz
Consumes Under 0.2W at 265VAC & No Load with
Advanced Burst-Mode Operation
Internal Start-up Circuit
Pulse-by-Pulse Current Limiting
Over-Voltage Protection (OVP)
Overload Protection (OLP)
Internal Thermal Shutdown Function (TSD)
Auto-Restart Mode
Under-Voltage Lockout (UVLO) with Hysteresis
Built-in Soft-Start
Secondary-Side Regulation
Applications
Charger & Adapter for Mobile Phone, PDA, & MP3
Auxiliary Power for White Goods, PC, C-TV, &
Monitors
Description
The FSDM311A consists of an integrated Pulse Width
Modulator (PWM) and SenseFET, and is specifically
designed for high-performance, off-line, Switch-Mode
Power Supplies (SMPS) with minimal external
components. This device is an integrated high-voltage
power switching regulator that combines a VDMOS
SenseFET with a voltage-mode PWM control block. The
integrated PWM controller features include a fixed
oscillator, Under-Voltage Lockout (UVLO) protection,
Leading-Edge Blanking (LEB), an optimized gate turn-
on/turn-off driver, Thermal Shutdown (TSD) protection,
and temperature-compensated precision-current
sources for loop compensation and fault protection
circuitry. When compared to a discrete MOSFET and
controller or RCC switching converter solution, the
FSDM311A device reduces total component count and
design size and 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.
Related Resources
AN-4134: Design Guidelines for Off-line Forward
Converters Using Fairchild Power Switch (FPS™)
AN-4137: Design Guidelines for Off-line Flyback
Converters Using Fairchild Power Switch (FPS™)
AN-4138: Design Considerations for Battery Charger
Using Green Mode Fairchild Power Switch (FPS™)
AN-4140: Transformer Design Consideration for Off-
line Flyback Converters Using Fairchild Power Switch
(FPS™)
AN-4141: Troubleshooting and Design Tips for
Fairchild Power Switch (FPS™) Flyback Applications
AN-4147: Design Guidelines for RCD Snubber of
Flyback
AN-4148: Audible Noise Reduction Techniques for
FPS™ Applications
www.DataSheet4U.com
Ordering Information
Product Number
FSDM311A
Package
8DIP
Marking Code
DM311A
All packages are lead free per JEDEC: J-STD-020B standard.
FPS™ is a trademark of Fairchild Semiconductor Corporation.
© 2007 Fairchild Semiconductor Corporation
FSDM311A • Rev.1.0.2
BVDSS
650V
fOSC
67KHz
RDS(ON)
14Ω
www.fairchildsemi.com
1 page  
Electrical Characteristics
TA=25°C unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
SENSEFET SECTION
IDSS
RDS(ON)
gfs
CISS
COSS
CRSS
td(on)
tr
td(off)
tf
Qg
Qgs
Qgd
Zero-Gate-Voltage Drain Current
Drain-Source On-State Resistance(8)
Forward Trans-Conductance
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
Turn-On Delay Time
Rise Time
Turn-Off Delay Time
Fall Time
Total Gate Charge
Gate-Source Charge
Gate-Drain (Miller) Charge
VDS=650V, VGS=0V
25
VDS=520V, VGS=0V, TC=125°C
200
VGS=10V, ID=0.5A
14 19
VDS=50V, ID=0.5A
1.0 1.3
162
VGS=0V, VDS=25V, f=1MHz
18
3.8
9.5
VDS=325V, ID=1.0A
19
33
42
7.0
VGS=10V, ID=1.0A, VDS=325V
3.1
0.4
mA
Ω
S
pF
ns
nC
CONTROL SECTION
fOSC
ΔfOSC
Switching Frequency
Switching Frequency Variation(9)
DMAX Maximum Duty Cycle
VSTART
VSTOP
UVLO Threshold Voltage
IFB Feedback Source Current
tS/S
VREF
Internal Soft-Start Time
Reference Voltage(10)
ΔVREF/ΔT
Reference Voltage Variation
with Temperature(9, 10)
-25°C ≤ TA ≤ 85°C
VFB=GND
VFB=GND
0V ≤ VFB ≤ 3V
-25°C ≤ TA ≤ 85°C
61 67 73 KHz
±5 ±10 %
60 67 74
%
8 9 10 V
678 V
0.35 0.40 0.45 mA
10 15 20 ms
4.2 4.5 4.8
V
0.3 0.6 mV/°C
BURST MODE SECTION
VBURH
VBURL
VBUR(HYS)
Burst Mode Voltage
TJ=25°C
Hysteresis
0.6 0.7 0.8
0.45 0.55 0.65
150
PROTECTION SECTION
ILIM Peak Current Limit
TSD Thermal Shutdown Temperature(10)
VSD Shutdown Feedback Voltage
VOVP Over-Voltage Protection
www.DataShIeDeEtL4AUY .comShutdown Delay Current
TOTAL DEVICE SECTION
di/dt=90mA/µs
3V ≤ VFB ≤ VSD
0.500
125
4.0
20
4
0.575
145
4.5
5
0.650
5.0
6
IOP Operating Supply Current (control part only) VCC ≤ 16V
ICH Start-up Charging Current
VCC=0V, VSTR=50V
1.5 3.0
450 550 650
Notes:
8. Pulse test: Pulse width ≤ 300µs, duty ≤ 2%.
9. These parameters, although guaranteed, are tested in EDS (wafer test) process.
10. These parameters, although guaranteed, are not 100% tested in production.
V
V
mV
A
°C
V
V
µA
mA
µA
© 2007 Fairchild Semiconductor Corporation
FSDM311A • Rev.1.0.2
5
www.fairchildsemi.com
5 Page 
Physical Dimensions
9.83
9.00
6.67
6.096
5.08 MAX
3.683
3.20
8.255
7.61
7.62
0.33 MIN
(0.56)
2.54
3.60
3.00
0.56
0.355
1.65
1.27
7.62
0.356
0.20
NOTES: UNLESS OTHERWISE SPECIFIED
A) THIS PACKAGE CONFORMS TO
JEDEC MS-001 VARIATION BA
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS ARE EXCLUSIVE OF BURRS,
MOLD FLASH, AND TIE BAR EXTRUSIONS.
D) DIMENSIONS AND TOLERANCES PER
ASME Y14.5M-1994
E) DRAWING FILENAME AND REVSION: MKT-N08FREV2.
www.DataSheet4U.com
Figure 25. 8-Lead DIP Package
9.957
7.87
© 2007 Fairchild Semiconductor Corporation
FSDM311A • Rev.1.0.2
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet FSDM311A.PDF ] | |
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