FS8S0765RCBYDTU_NL Fairchild Semiconductor, FS8S0765RCBYDTU_NL Datasheet

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FS8S0765RCBYDTU_NL

Manufacturer Part Number
FS8S0765RCBYDTU_NL
Description
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of FS8S0765RCBYDTU_NL

Power Switch Family
FS8S0765RCB
Input Voltage
-0.3 to 10V
Power Switch On Resistance
1.4Ohm
Output Current
7A
Number Of Outputs
Single
Mounting
Through Hole
Supply Current
9mA
Package Type
TO-220F
Operating Temperature (min)
-25C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Pin Count
5 +Tab
Power Dissipation
145W
Lead Free Status / Rohs Status
Compliant
©2006 Fairchild Semiconductor Corporation
FS8S0765RCB Rev. 1.0.2
FPS
FS8S0765RCB
Fairchild Power Switch (FPS™)
Features
Applications
Ordering Information
Notes:
1. TU: Non Forming Type
2. YDTU: Forming Type
FS8S0765RCBYDTU
Burst Mode Operation to Reduce the Power
Consumption in the Standby Mode
External pin for Synchronization and Soft Start
Wide Operating Frequency Range up to 150kHz
Low Start-up Current (Max:80μA)
Low Operating Current (Max:15mA)
Pulse by Pulse Current Limiting
Over-Voltage Protection (Auto Restart Mode)
Overload Protection (Auto Restart Mode)
Abnormal Over-Current Protection (Auto Restart
Mode)
Internal Thermal Shutdown (Auto Restart Mode)
Under-Voltage Lockout
Internal High-Voltage SenseFET
SMPS for Monitor
FS8S0765RCBTU
TM
Product Number
is a trademark of Fairchild Semiconductor Corporation.
(1)
(2)
TO-220-5L (Forming)
TO-220-5L
Package
Marking Code
1
8S0765RC
Description
FS8S0765RCB is a Fairchild Power Switch (FPS) that is
specially designed for off-line SMPS of CRT monitors
with minimal external components. This device is a
current mode pulse-width modulated (PWM) controller
combined with a high-voltage power SenseFET in a single
package. The PWM controller features integrated
oscillator to be synchronized with the external sync
signal, under-voltage lockout, optimized gate driver,
temperature compensated precise current sources for
the loop compensation. This device also includes
various fault-protection, circuits such as over voltage
protection, overload protection, abnormal over current
protection and over-temperature protection, Compared
with a discrete MOSFET and PWM controller solution,
FPS can reduce total cost, component count, size, weight,
while increasing efficiency, productivity, and system
reliability. This device is well suited for the cost-effective
monitor power supply.
1. Drain 2. GND 3. V
1
TO-220-5L
BV
650V
CC
DSS
4. Feedback 5. Sync
R
DS(ON)
1.6Ω
www.fairchildsemi.com
April 2006

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FS8S0765RCBYDTU_NL Summary of contents

Page 1

... FS8S0765RCBYDTU TO-220-5L (Forming) Notes: 1. TU: Non Forming Type 2. YDTU: Forming Type FPS is a trademark of Fairchild Semiconductor Corporation. TM ©2006 Fairchild Semiconductor Corporation FS8S0765RCB Rev. 1.0.2 Description FS8S0765RCB is a Fairchild Power Switch (FPS) that is specially designed for off-line SMPS of CRT monitors with minimal external components. This device is a ...

Page 2

Internal Block Diagram Vref Burst Mode Detector 5 Soft start Vfb<0.8V & Sync Vss>3V No sync Vcc I delay Vcc Vovp TSD FS8S0765RCB Rev. 1.0.2 Vcc 3 Burst Mode 9V/15V Controller Vref Sync Detector OSC Vref ...

Page 3

Pin Configuration Pin Definitions Pin Number Pin Name 1 Drain 2 GND 3 Vcc 4 Feedback 5 Soft Start & Sync FS8S0765RCB Rev. 1.0.2 5. Soft Start & Sink 4. Feedback 3. Vcc 2. GND 1. Drain Figure 2. Pin ...

Page 4

Absolute Maximum Ratings The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not ...

Page 5

... Turn Off Delay Time tf Fall Time Total Gate Charge Qg (Gate-Source+Gate-Drain) Qgs Gate-Source Charge Qgd Gate-Drain (Miller) Charge Note: Pulse test: Pulse width ≤ 300μS, duty 2% 1. MOSFET switching time is essentially independent of operating temperature. 2. FS8S0765RCB Rev. 1.0.2 Condition Min. V =0V, I =250μA 650 =650V, V ...

Page 6

Electrical Characteristics (T =25°C unless otherwise specified) A Symbol Parameter UVLO Section V Start Threshold Voltage START V Stop Threshold Voltage STOP Oscillator Section F Initial Frequency OSC FSTABLE Voltage Stability ΔFOSC Temperature Stability DMAX Maximum Duty Cycle DMIN Minimum ...

Page 7

Typical Performance Characteristics (Control Part) (These characteristic graphs are normalized at T 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [ ° C] Figure 3. Start Up Current vs. Temp. 1.20 1.15 ...

Page 8

Typical Performance Characteristics (These characteristic graphs are normalized at T 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 -40 - Temperature [ ° C] Figure 9. Feedback Offset Voltage vs. Temp. ...

Page 9

Typical Performance Characteristics (These characteristic graphs are normalized at T 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [ ° C] Figure 15. Normal Mode Regulation Voltage vs. Temp. 1.4 1.3 1.2 ...

Page 10

Typical Performance Characteristics (These characteristic graphs are normalized at T 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [ ° C] Figure 21. Burst Mode Peak Current vs. Temp. FS8S0765RCB Rev. 1.0.2 ...

Page 11

... MOSFET current caused by primary-side capacitance and secondary-side recovery. To prevent premature termination of the switching pulse due to the current spike, the FPS employs leading edge blanking (LEB). The leading edge blanking circuit inhibits the PWM comparator for a short time after the MOSFET is turned on. Vcc Vref 0 ...

Page 12

... Css than Cfb possible to increase the feedback voltage slowly, forcing the SenseFET current to increase slowly. After Css reaches its steady state value blocked and the soft switching circuit is decoupled from Auto restart the feedback circuit. If the value of Css is too large, there is possibility that Vfb increases to 7 ...

Page 13

... FS8S0765RCB Rev. 1.0.2 operation. At the end of the section 3, the load is eliminated and the feedback voltage (Vfb) drops below 1V, forcing the FPS to stop switching operation. During the section 4, Vcc goes down to 11V. During section 5, Vcc is hysteresis controlled between 11V and 12V. When the external sync signal is applied on the pin 5, the FPS resumes normal operation ...

Page 14

Typical Application Circuit 1. 80W Universal Input Power Supply For CRT Monitor BD101 1 3 C106 + 220μF/400V R103 600K 0 RT101 C105 100nF Line Filter: LF101 C110 1μF/50V + C103 C104 C108 + 4.7nF 4.7nF 22μF/50V C114 C102 1nF ...

Page 15

Winding Specification No Pin (s→f) 4 → 1 Np1 Insulation: Polyester Tape t = 0.050mm, 2 Layers 16 → 15 Nvo1 Insulation: Polyester Tape t = 0.050mm, 2 Layers 7 → 8 Nreg Insulation: Polyester Tape t = 0.050mm, ...

Page 16

Demo Circuit Part List Part Value Fuse F101 3A/250V NTC RT101 10D-9 Resistor R101 56kΩ R102 3.3Ω R103 600kΩ R104 2.2kΩ R105 0.56kΩ R106 0.1kΩ R201 0.1kΩ R202 4kΩ R203 0.7kΩ Inductor L201 ~ L205 13uH Capacitor C101 471D10 ...

Page 17

Package Dimensions TO-220-5L FS8S0765RCB Rev. 1.0.2 Dimensions in millimeters June 2002, Rev www.fairchildsemi.com ...

Page 18

Package Dimensions (Continued) TO-220-5L (Forming) FS8S0765RCB Rev. 1.0.2 Dimensions in millimeters June 2002, Rev www.fairchildsemi.com ...

Page 19

... TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks. ® ACEx™ FAST ActiveArray™ FASTr™ Bottomless™ FPS™ Build it Now™ FRFET™ CoolFET™ ...

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