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CQ0765RT の電気的特性と機能

CQ0765RTのメーカーはFairchild Semiconductorです、この部品の機能は「FSCQ0765RT」です。


製品の詳細 ( Datasheet PDF )

部品番号 CQ0765RT
部品説明 FSCQ0765RT
メーカ Fairchild Semiconductor
ロゴ Fairchild Semiconductor ロゴ 




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CQ0765RT Datasheet, CQ0765RT PDF,ピン配置, 機能
www.fairchildsemi.com
FSCQ0765RT
Green Mode Fairchild Power Switch (FPSTM) for
Quasi-Resonant Switching Converter
Features
• Optimized for Quasi-Resonant Converter (QRC)
• Advanced Burst-Mode operation for under 1 W standby
www.DataSheet4Up.coowmer consumption
• Pulse by Pulse Current Limit (5A)
• 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 : 25uA)
• Low Operating Current (typical : 4mA)
• Internal High Voltage SenseFET
• Built-in Soft Start (20ms)
• Extended Quasi-resonant Switching for Wide Load Range
Application
• CTV
• DVD Receiver
• Audio Power Supply
OUTPUT POWER TABLE
PRODUCT
230VAC ±15%(2)
Open Frame(1)
85-265VAC
Open Frame(1)
FSCQ0765RT
100 W
85 W
FSCQ1265RT
170 W
140 W
FSCQ1565RT
210 W
170 W
Table 1. Notes: 1. Maximum practical continuous power
in an open frame design at 50°C ambient. 2. 230 VAC or
100/115 VAC with doubler.
Typical Circuit
Vo
Description
In general, Quasi-Resonant Converter (QRC) shows lower
EMI and higher power conversion efficiency compared to the
conventional hard switched converter with a fixed switching
frequency. Therefore, it is well suited for applications that are
sensitive to the noise, such as color TV and audio. The
FSCQ0765RT is an integrated Pulse Width Modulation
(PWM) controller and Sense FET specifically designed for
Quasi-resonant off-line Switch Mode Power Supplies
(SMPS) with minimal external components. The PWM
controller includes integrated fixed frequency oscillator, under
voltage lockout, leading edge blanking (LEB), optimized gate
driver, internal 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, produc-
tivity, and system reliability. This device is a basic platform
well suited for cost effective designs of Quasi resonant
switching flyback converters.
AC
IN
Sync
FSCQ0765RT
PWM
VFB Vcc
Drain
GND
Figure 1. Typical Flyback Application
©2004 Fairchild Semiconductor Corporation
Rev.1.0.1

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CQ0765RT pdf, ピン配列
Pin Definitions
FSCQ0765RT
Pin Number
1
2
3
www.DataSheet4U.com 4
5
Pin Name
Drain
GND
Vcc
Vfb
Sync
Pin Function Description
High voltage power SenseFET drain connection.
This pin is the control ground and the SenseFET source.
This pin is the positive supply input. This pin provides internal operating
current for both start-up and steady-state operation.
This pin is internally connected to the inverting input of the PWM comparator.
The collector of an opto-coupler is typically tied to this pin. For stable
operation, a capacitor should be placed between this pin and GND. If the
voltage of this pin reaches 7.5V, the over load protection triggers resulting in
shutdown of the FPS.
This pin is internally connected to the sync detect comparator for quasi
resonant switching. In normal quasi-resonant operation, the threshold of the
sync comparator is 4.6V/2.6V. Meanwhile, the sync threshold is changed to
3.0V/1.8V in extended quasi-resonant operation.
Pin Configuration
TO-220F-5L
5.Sync
4.Vfb
3.Vcc
2.GND
1.Drain
Figure 3. Pin Configuration (Top View)
3


3Pages


CQ0765RT 電子部品, 半導体
FSCQ0765RT
Electrical Characteristics (Continued)
(Ta=25°C unless otherwise specified)
Parameter
UVLO SECTION
Vcc Start Threshold Voltage
Vcc Stop Threshold Voltage
SENSEFET SECTION
Drain To PKG Breakdown Voltage (Note4)
www.DataSheet4UD.craoimn To Source Breakdown Voltage
Drain To Source Leakage Current
OSCILLATOR SECTION
Initial Frequency
Voltage Stability
Temperature Stability (Note2)
Maximum Duty Cycle
Minimum Duty Cycle
FEEDBACK SECTION
Feedback Source Current
Shutdown Feedback Voltage
Shutdown Delay Current
PROTECTION SECTION
Over Voltage Protection
Over Current Latch Voltage (Note2)
Thermal Shutdown Temp (Note4)
Symbol
Condition
Min. Typ. Max. Unit
VSTART VFB = GND
VSTOP VFB = GND
14 15 16
8 9 10
V
V
BVpkg
BVdss
Idss
60HZ AC, Ta = 25°C
3500
Ta = 25°C
650
Vdrain = 400V, Ta = 25°C -
-
-
-
-V
-V
200 uA
FOSC
FSTABLE
FOSC
DMAX
DMIN
-
12V Vcc 23V
-25°C Ta 85°C
-
-
18 20 22 kHz
0 1 3%
0 ±5 ±10 %
92 95 98 %
- - 0%
IFB
VSD
IDELAY
VFB = 0.8V
Vfb 6.9V
VFB = 5V
0.5 0.65 0.8 mA
7.0 7.5 8.0 V
4 5 6 µA
VOVP
VOCL
TSD
Vsync 11V
-
-
11 12 13 V
0.9 1.0 1.1 V
140 - °C
Note:
1. These parameters is the current flowing in the Control IC.
2. These parameters, although guaranteed, are tested only in EDS (wafer test) process.
3. These parameters indicate Inductor Current.
4. These parameters, although guaranteed at the design, are not tested in mass production.
6

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部品番号部品説明メーカ
CQ0765RT

FSCQ0765RT

Fairchild Semiconductor
Fairchild Semiconductor


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