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PDF CQ765RT Data sheet ( Hoja de datos )

Número de pieza CQ765RT
Descripción FSCQ765RT
Fabricantes Fairchild Semiconductor 
Logotipo Fairchild Semiconductor Logotipo



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No Preview Available ! CQ765RT Hoja de datos, Descripción, Manual

January 2014
FSCQ-Series:
FSCQ0565RT / FSCQ0765RT / FSCQ0965RT / FSCQ1265RT / FSCQ1565RT
Green Mode Fairchild Power Switch (FPS™)
Features
Optimized for Quasi-Resonant Converter (QRC)
Advanced Burst-Mode Operation for under 1 W
Standby Power Consumption
Pulse-by-Pulse Current Limit
Overload Protection (OLP) Auto Restart
Over-Voltage Protection (OVP) Auto Restart
Abnormal Over-Current Protection (AOCP) Latch
Internal Thermal Shutdown (TSD) Latch
Under-Voltage Lockout (UVLO) with Hysteresis
Low Startup Current (Typical: 25 μA)
Internal High Voltage SenseFET
Built-in Soft-Start (20 ms)
Extended Quasi-Resonant Switching
Applications
CTV
Audio Amplifier
Description
A Quasi-Resonant Converter (QRC) typically shows
lower EMI and higher power conversion efficiency
compared to a conventional hard-switched converter
with a fixed switching frequency. Therefore, a QRC is
well suited for noise-sensitive applications, such as
color TV and audio. Each product in the FSCQ series
contains an integrated Pulse Width Modulation (PWM)
controller and a SenseFET. This series is specifically
designed for quasi-resonant off-line Switch Mode Power
Supplies (SMPS) with minimal external components.
The PWM controller includes an integrated fixed
frequency oscillator, under-voltage lockout, leading-
edge blanking (LEB), optimized gate driver, internal soft-
start, temperature-compensated precise current sources
for loop compensation, and self-protection circuitry.
Compared with a discrete MOSFET and PWM controller
solution, the FSCQ series can reduce total cost,
component count, size, and weight; while increasing
efficiency, productivity, and system reliability. These
devices provide a basic platform for cost-effective
designs of quasi-resonant switching flyback converters.
Related Resources
AN-4146 Design Guidelines for Quasi-Resonant Converters Using FSCQ-Series Fairchild Power Switch
AN-4140 Transformer Design Consideration for Offline Flyback Converters Using Fairchild Power Switch
Ordering Information
Part Number
Package
FSCQ0565RTYDTU
FSCQ0765RTYDTU
FSCQ0965RTYDTU
FSCQ1265RTYDTU
FSCQ1565RTYDTU
TO-220F-5L (Forming)
TO-220F-5L (Forming)
TO-220F-5L (Forming)
TO-220F-5L (Forming)
TO-220F-5L (Forming)
© 2006 Fairchild Semiconductor Corporation
FSQ-Series Rev. 1.1.3
Marking Code
CQ0565RT
CQ0765RT
CQ0965RT
CQ1265RT
CQ1565RT
BVDSS (V)
650
650
650
650
650
RDSON Max. ()
2.2
1.6
1.2
0.9
0.7
www.fairchildsemi.com

1 page




CQ765RT pdf
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only. TA = 25°C, unless otherwise specified.
Symbol
VDS
VCC
Vsync
VFB
Drain Pin Voltage
Supply Voltage
Analog Input Voltage Range
Parameter
IDM Drain Current Pulsed(4)
ID
Continuous Drain Current (TC = 25°C)
(TC: Case Back Surface Temperature)
ID*
Continuous Drain Current* (TDL = 25°C)
(TDL: Drain Lead Temperature)
ID Continuous Drain Current (TC = 100°C)
EAS Single-Pulsed Avalanche Energy(5)
PD Total Power Dissipation (TC = 25°C with Infinite Heat Sink)
TJ
TA
TSTG
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1565RT
FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1565RT
FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1565RT
FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1565RT
FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1565RT
FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1565RT
Value
650
20
-0.3 to 13
-0.3 to VCC
11.2
15.2
16.4
21.2
26.4
2.8
3.8
4.1
5.3
6.6
5.0
7.0
7.6
11.0
13.3
1.7
2.4
2.6
3.4
4.4
400
570
630
950
1050
38
45
49
50
75
150
-25 to +85
-55 to +150
Unit
V
V
V
A
A(rms)
A(rms)
A(rms)
mJ
W
°C
°C
°C
Continued on the following page…
© 2006 Fairchild Semiconductor Corporation
FSQ-Series Rev. 1.1.3
5
www.fairchildsemi.com

5 Page





CQ765RT arduino
Typical Performance Characteristics
Figure 16. Feedback Offset Voltage
Figure 17. Burst Mode Enable Feedback Voltage
Figure 18. Sync. Threshold in Normal QR(H)
Figure 19. Sync. Threshold in Normal QR(L)
Figure 20. Sync. Threshold in Extended QR(H)
Figure 21. Sync. Threshold in Extended QR(L)
© 2006 Fairchild Semiconductor Corporation
FSQ-Series Rev. 1.1.3
11
www.fairchildsemi.com

11 Page







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