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PDF CQ1265RT Data sheet ( Hoja de datos )
| Número de pieza | CQ1265RT | |
| Descripción | FSCQ1265RT | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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February 2006
FSCQ-Series
FSCQ0565RT/FSCQ0765RT/FSCQ0965RT/FSCQ1265RT/
FSCQ1465RT/FSCQ1565RT/FSCQ1565RP
Green Mode Fairchild Power Switch (FPS™)
Features
■ Optimized for Quasi-Resonant Converter (QRC)
www.DataSheet4U.c■omAdvanced Burst-Mode Operation for under 1W
Standby Power Consumption
■ Pulse-by-Pulse Current Limit
■ Over Load Protection (OLP) – Auto Restart
■ Over Voltage Protection (OVP) – Auto Restart
■ Abnormal Over Current Protection (AOCP) – Latch
■ Internal Thermal Shutdown (TSD) – Latch
■ Under Voltage Lock Out (UVLO) with Hysteresis
■ Low Startup Current (typical: 25µA)
■ Internal High Voltage SenseFET
■ Built-in Soft Start (20ms)
■ Extended Quasi-Resonant Switching
Applications
■ CTV
■ Audio Amplifier
Related Application Notes
■ AN4146: Design Guidelines for Quasi-Resonant
Converters Using FSCQ-Series Fairchild Power
Switch.
■ AN4140: Transformer Design Consideration for
Off-Line Flyback Converters Using Fairchild Power
Switch.
Description
A Quasi-Resonant Converter (QRC) typically shows
lower EMI and higher power conversion efficiency com-
pared to 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, and 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 volt-
age lockout, leading edge blanking (LEB), optimized gate
driver, internal soft start, temperature-compensated pre-
cise current sources for a 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
simultaneously increasing efficiency, productivity, and sys-
tem reliability. These devices provide a basic platform that
is well suited for cost-effective designs of quasi-resonant
switching flyback converters.
Ordering Information
Product Number
FSCQ0565RTYDTU
FSCQ0765RTYDTU
FSCQ0965RTYDTU
FSCQ1265RTYDTU
FSCQ1465RTYDTU
FSCQ1565RTYDTU
FSCQ1565RPVDTU
Package
TO-220F-5L (Forming)
TO-220F-5L (Forming)
TO-220F-5L (Forming)
TO-220F-5L (Forming)
TO-220F-5L( Forming)
TO-220F-5L (Forming)
TO-3PF-7L (Forming)
Marking Code
CQ0565RT
CQ0765RT
CQ0965RT
CQ1265RT
CQ1465RT
CQ1565RT
CQ1565RP
YDTU: Forming Type
VDTU: Forming Type
BVdss
650V
650V
650V
650V
650V
650V
650V
Rds(ON) Max.
2.2Ω
1.6Ω
1.2Ω
0.9Ω
0.8Ω
0.7Ω
0.7Ω
©2006 Fairchild Semiconductor Corporation
FSCQ-Series Rev. 1.1.2
1
www.fairchildsemi.com
1 page  
Absolute Maximum Ratings
(TA = 25°C, unless otherwise specified)
Parameter
Drain Pin Voltage
Supply Voltage
Analog Input Voltage Range
Drain Current Pulsed4
www.DataSheet4U.com
Continuous Drain Current (Tc = 25°C)
(Tc: Case Back Surface Temperature)
Continuous Drain Current* (TDL = 25°C)
(TDL:Drain Lead Temperature)
Continuous Drain Current (TC = 100°C)
Single-Pulsed Avalanche Energy5
FSCQ-Series Rev. 1.1.2
Symbol
VDS
VCC
Vsync
VFB
IDM FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1465RT
FSCQ1565RT
FSCQ1565RP
ID FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1465RT
FSCQ1565RT
FSCQ1565RP
ID* FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1465RT
FSCQ1565RT
FSCQ1565RP
ID FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1465RT
FSCQ1565RT
FSCQ1565RP
EAS FSCQ0565RT
FSCQ0765RT
FSCQ0965RT
FSCQ1265RT
FSCQ1465RT
FSCQ1565RT
FSCQ1565RP
Value
650
20
-0.3 to 13V
-0.3 to VCC
11.2
15.2
16.4
21.2
22
26.4
33.2
2.8
3.8
4.1
5.3
5.5
6.6
8.3
5
7
7.6
11
12
13.3
15
1.7
2.4
2.6
3.4
3.5
4.4
5.5
400
570
630
950
1000
1050
1050
Unit
V
V
V
V
A
A(rms)
A(rms)
A(rms)
mJ
5 www.fairchildsemi.com
5 Page 
Electrical Characteristics (Continued)
Maximum Duty Cycle
1.10
1.05
1.00
0.95
0.90
www.DataSheet4U.com -50
0 50 100
Temp (°C)
150
1.10
1.05
1.00
0.95
0.90
-50
Over Voltage Protection
0 50 100
Temp (°C)
150
1.2
1.1
1.0
0.9
0.8
-50
Shutdown Delay Current
0 50 100
Temp (°C)
150
Shutdown Feedback Voltage
1.10
1.05
1.00
0.95
0.90
-50
0 50 100
Temp (°C)
150
1.2
1.1
1.0
0.9
0.8
-50
Feedback Source Current
0 50 100
Temp (°C)
150
Burst Mode Feedback Source Current
1.2
1.1
1.0
0.9
0.8
-50
0 50 100
Temp (°C)
150
FSCQ-Series Rev. 1.1.2
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 45 Páginas | |
| PDF Descargar | [ Datasheet CQ1265RT.PDF ] | |
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