FS7M0680TU Fairchild Semiconductor, FS7M0680TU Datasheet

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FS7M0680TU

Manufacturer Part Number
FS7M0680TU
Description
IC SWIT PWM CM OVP UVLO HV TO3P
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of FS7M0680TU

Output Isolation
Isolated
Frequency Range
60 ~ 72kHz
Voltage - Input
9 ~ 30 V
Voltage - Output
800V
Power (watts)
150W
Operating Temperature
25°C ~ 150°C
Package / Case
TO-3P-5
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FS7M0680TU
Manufacturer:
FSC
Quantity:
20 000
Part Number:
FS7M0680TU
Manufacturer:
Fairchi/ON
Quantity:
16 000
Features
• Precise Fixed Operating Frequency
• FS7M0680(66kHz)
• Pulse By Pulse Current Limiting
• Over Current Protection
• Over Load Protection
• Over Voltage Protection (Min. 25V)
• Internal Thermal Shutdown Function
• Under Voltage Lockout with Hysteresis
• Internal High Voltage Sense FET
• Latch Up Mode
• Soft Start
Internal Block Diagram
©2003 Fairchild Semiconductor Corporation
FS7M0680
Fairchild Power Switch(FPS)
Feedback
# 4
Vovp
Vcc
Vsd
Idelay
Vref
Ifb
Vref
S o ft S ta rt
3R
# 5
R
O SC
+
-
Com parator
PW M
offset
R eset
V cc
Vfb
S
R
Description
The Fairchild Power Switch (FPS) product family is specially
designed for an off line SMPS with minimal external compo-
nents. The Fairchild Power Switch (FPS) consists of high volt-
age power SenseFET and current mode PWM controller. The
PWM controller includes integrated fixed oscillator, under volt-
age lock out, leading edge blanking block, optimized gate turn-
on/turn-off driver, thermal shut down protection, over voltage
protection, temperature compensated precise current sources for
loop compensation and fault protection circuit. Compared to
discrete MOSFET and PWM controller or ring choke converter
(RCC) solutions, the Fairchild Power Switch (FPS) can reduce
total cost, component count, size and weight simultaneously
increasing efficiency, productivity, and system reliability. It has
simple applications well suited for cost down design for flyback
converter or forward converter.
S
R
Q
1. DRAIN 2. GND 3. V
Q
TO-3P-5L
Internal
Vias
12 0ns
1
D elay
Vref
+
-
S hutdo w n
UVLO
CC
Therm al
Vcc
# 3
4. FB 5. S/S
+
Vo cp
-
www.fairchildsemi.com
R sense
R o ff
R o n
D R AIN
S o urce
G N D
# 1
# 2
Rev.1.0.0

Related parts for FS7M0680TU

FS7M0680TU Summary of contents

Page 1

... Vref Idelay Vsd Vcc Vovp ©2003 Fairchild Semiconductor Corporation Description The Fairchild Power Switch (FPS) product family is specially designed for an off line SMPS with minimal external compo- nents. The Fairchild Power Switch (FPS) consists of high volt- age power SenseFET and current mode PWM controller. The ...

Page 2

FS7M0680 Absolute Maximum Ratings Parameter (1) Maximum Drain Voltage Drain-Gate Voltage (R =1MΩ) GS Gate-Source (GND) Voltage (2) Drain Current Pulsed Single Pulsed Avalanche Energy (4) Avalanche Current Continuous Drain Current (T =25°C) C Continuous Drain Current (T =100°C) C ...

Page 3

Electrical Characteristics (SenseFET part) (Ta=25°C unless otherwise specified) Parameter Drain-Source Breakdown Voltage Zero Gate Voltage Drain Current Static Drain-Source On Resistance (note1) Forward Transconductance Input Capacitance Output Capacitance Reverse Transfer Capacitance Turn On Delay Time Rise Time Turn Off Delay ...

Page 4

FS7M0680 Electrical Characteristics (control part) (Ta=25°C unless otherwise specified) Parameter UVLO SECTION Start Threshold Voltage Stop Threshold Voltage OSCILLATOR SECTION Initial Frequency Frequency Change With Temperature Maximum Duty Cycle Voltage Stability FEEDBACK SECTION Feedback Source Current Shutdown Delay Current Shutdown ...

Page 5

General Application In general, the FPS consists of several functional sections: under voltage lockout circuit (UVLO), reference voltage, oscillator (OSC), pulse width modulation (PWM) block, pro- tection circuits and gate drive circuit. Start-Up The minimum current that FPS requires for ...

Page 6

FS7M0680 Vo Pulse by pulse current limit Figure 3 shows the pulse-width-modulation (PWM) block of the FPS. Since the FPS employs the peak current mode con- trol, the current through the power MOSFET is limited by the inverting input voltage ...

Page 7

Then, Vfb continues increasing and the preset maximum current flows through the primary side until the over load protection circuit is activated. Since maximum current is transferred to the secondary side, the secondary side voltage becomes much higher than the ...

Page 8

FS7M0680 3. Application Note using the FPS -Flyback Application (70W) HOT 5D-9 /NTC BD1 3.3 nF/630V 1 50uF /4 00V 700K /1W 2.2 nF 2.2nF 13mH Drain 5 FS7M0680R 0.1uF/275V AC GND ...

Page 9

Application (180W) Line NTC FUSE Inductor 472 /275V 0.47uF /275V 472 /275V 33kΩ /0.5W 33kΩ /0.5W Transformer Specification 2. Winding Specification PIN(S → F) No. 1 → P → 10, 11, 12 N+5V 13, 14 ...

Page 10

FS7M0680 Typical Performance Characteristics 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [°C] Figure 1. Operating Supply Current vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 -20 0 ...

Page 11

Typical Performance Characteristics 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [°C] Figure 7. Minimum Duty Cycle vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - ...

Page 12

FS7M0680 Typical Performance Characteristics 1.4 1.3 1.2 1.1 1.0 0.9 0.8 -40 - Temperature [°C] Figure 13. Feedback Sink Current vs. Temp (Continued) 1.20 1.15 1.10 ...

Page 13

Package Dimensions TO-3P-5L FS7M0680 13 ...

Page 14

FS7M0680 Package Dimensions 14 (Continued) TO-3P-5L (Forming) ...

Page 15

... Ordering Information Product Number FS7M0680TU FS7M0680YDTU TO-3P-5L(Forming Non Forming Type YDTU : Forming type Package Rating TO-3P-5L 800V, 6A FS7M0680 Fosc 67kHz 15 ...

Page 16

... FS7M0680 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...

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