FS7M0880YDTU Fairchild Semiconductor, FS7M0880YDTU Datasheet

IC SWIT PWM CM OVP UVLO HV TO3P

FS7M0880YDTU

Manufacturer Part Number
FS7M0880YDTU
Description
IC SWIT PWM CM OVP UVLO HV TO3P
Manufacturer
Fairchild Semiconductor
Datasheets

Specifications of FS7M0880YDTU

Output Isolation
Isolated
Frequency Range
60 ~ 72kHz
Voltage - Input
9 ~ 30 V
Voltage - Output
800V
Power (watts)
190W
Operating Temperature
25°C ~ 150°C
Package / Case
TO-3P-5
Power Switch Family
FS7M0880
Input Voltage
-0.3 to 8.1V
Power Switch On Resistance
1.2Ohm
Output Current
6A
Number Of Outputs
Single
Mounting
Through Hole
Supply Current
8mA
Package Type
TO-3P
Operating Temperature (min)
-25C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Pin Count
5 +Tab
Power Dissipation
190W
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FS7M0880YDTU_NL
FS7M0880YDTU_NL

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Features
• Pulse by Pulse Current Limit
• Over load protection (OLP) - Latch
• Over voltage protection (OVP) - Latch
• Internal Thermal Shutdown (TSD) - Latch
• Under Voltage Lock Out (UVLO) with hysteresis
• Internal High Voltage SenseFET (800V rated)
• User defined Soft Start
• Precision Fixed Operating Frequency (66kHz)
Application
• PC power supply
• PDP
Description
The Fairchild Power Switch FS7M-series is an integrated
Pulse Width Modulator (PWM) and Sense FET specifically
designed for high performance offline Switch Mode Power
Supplies (SMPS) with minimal external components. This
device is an integrated high voltage power switching
regulator which combine an avalanche rugged Sense FET
with a current mode PWM control block. The PWM controller
includes integrated fixed frequency oscillator, under voltage
lockout, leading edge blanking (LEB), optimized gate driver,
soft start, temperature compensated precise current sources
for a loop compensation and self protection circuitry.
Compared with discrete MOSFET and PWM controller
solution, it can reduce total cost, component count, size and
weight simultaneously increasing efficiency, productivity, and
system reliability. This device is a basic platform well suited
for cost effective designs of flyback and forward converters.
©2005 Fairchild Semiconductor Corporation
FS7M0680, FS7M0880
Fairchild Power Switch (FPS
Notes: 1. Maximum practical continuous power in an open
Typical Circuit
PRODUCT
FS7M0680
FS7M0880
AC IN
frame design at 50°C ambient. 2. 230 VAC or 100/115
VAC with doubler. 3. When the cooling fan is used.
TM
S/S
)
Figure 1. Typical Forward Application
Table 1. Maximum Output Power
V
OUTPUT POWER TABLE
FB
FS7M-series
PWM
180W (Forward)
250W (Forward)
230VAC ±15%
150W (Forward)
200W (Forward)
Vcc
110W (Flyback)
Open Frame
80W (Flyback)
www.fairchildsemi.com
Drain
GND
(1)
(2)
(3)
(3)
Open Frame
65W (Flyback)
85W (Flyback)
85-265VAC
Rev.1.0.2
Vo
(1)

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FS7M0880YDTU Summary of contents

Page 1

... This device is a basic platform well suited for cost effective designs of flyback and forward converters. ©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com TM ) Table 1. Maximum Output Power OUTPUT POWER TABLE 230VAC ± ...

Page 2

FS7M0680, FS7M0880 Internal Block Diagram Vref Soft start 5 Vcc Vref I delay Vcc Vovp TSD Figure 2. Functional Block Diagram of FS7M0680 and FS7M0880 2 Vcc 3 Vcc good 9V/15V Reset OSC I PWM FB ...

Page 3

Pin Definitions Pin Number Pin Name 1 Drain 2 GND 3 Vcc 4 Vfb 5 Soft-start Pin Configuration Pin Function Description High voltage power SenseFET drain connection. This pin is the control ground and the SenseFET source. This pin is ...

Page 4

FS7M0680, FS7M0880 Absolute Maximum Ratings FS7M0680 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 ...

Page 5

Electrical Characteristics (SenseFET Part) (Ta=25°C unless otherwise specified) FS7M0680 Parameter Drain-Source Breakdown Voltage Zero Gate Voltage Drain Current Static Drain-Source On Resistance Input Capacitance Output Capacitance Reverse Transfer Capacitance Turn On Delay Time Rise Time Turn Off Delay Time Fall ...

Page 6

FS7M0680, FS7M0880 Electrical Characteristics (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 FEEDBACK SECTION Feedback Source Current Shutdown Delay Current SOFT START SECTION Soft ...

Page 7

Electrical characteristics 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [°C] Operating Supply Current vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature ...

Page 8

FS7M0680, FS7M0880 Electrical characteristics 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [°C] 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 9

Electrical characteristics 1.4 1.3 1.2 1.1 1.0 0.9 0.8 -40 - Temperature [°C] Feedback Current vs. Temp. 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 80 100 120 140 160 -40 - ...

Page 10

FS7M0680, FS7M0880 Functional Description 1. Startup : Figure 4 shows the typical startup circuit and transformer auxiliary winding for FS7M-series. Because all the protections are implemented as latch mode, AC startup is typically used to provide a fast reset as ...

Page 11

Vcc Vref I I delay FB Vfb Vo 4 H11A817A KA431 - V SD Figure 6. Pulse width modulation (PWM) circuit 3. Protection Circuit : The FS7M-series has several self protective functions ...

Page 12

FS7M0680, FS7M0880 compared with a preset AOCP level. If the sensing resistor voltage is greater than the AOCP level, the set signal is applied to the latch, resulting in the shutdown of SMPS. This protection is implemented in latch mode. ...

Page 13

Typical application circuit I (7M0880 : Forward) Application Output power PC Power 250W (Cooling Fan) 1. Schematic C4 470uF 200V C5 470uF 200V BD1 GDB206 C2 C3 4.7nF 4.7nF C10 1kV 1kV 1uF C9 16V 33nF LF1 RT1 C1 10D-11 ...

Page 14

FS7M0680, FS7M0880 Typical application circuit II (7M0880 : Flyback) Application Output power Adaptor 1. Schematic NTC 10D-11 100uF 400V 2KBP06M3N257 2.2nF 2.2nF 250VAC 250VAC 1uF 50V 22nF LF1 20mH 100nF 275VAC FUSE 250V 2.0A 2. Transformer Specification Winding Specification PIN(S ...

Page 15

Package Dimensions TO-3P-5L FS7M0680, FS7M0880 15 ...

Page 16

FS7M0680, FS7M0880 Package Dimensions 16 (Continued) TO-3P-5L(Forming) ...

Page 17

... Ordering Information Product Number FS7M0680TU FS7M0680YDTU TO-3P-5L(Forming) FS7M0880TU FS7M0880YDTU TO-3P-5L(Forming Non Forming Type YDTU : Forming type Package Rating TO-3P-5L 800V, 6A TO-3P-5L 800V, 8A FS7M0680, FS7M0880 Fosc 66kHz 66kHz 17 ...

Page 18

... FS7M0680, FS7M0880 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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