SQ6601PT [AUK]
Off-Line Quasi-Resonance Flyback Switching Regulator; 离线准谐振反激式开关稳压器
| 型号： | SQ6601PT |
| 厂家： | 
AUK CORP |
| 描述： | Off-Line Quasi-Resonance Flyback Switching Regulator |
| 文件： | 总8页 (文件大小：422K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SQ6601PT
Semiconductor
Off-Line Quasi-Resonance Flyback Switching Regulator
Description
The SQ6601PT is a hybrid IC consists from power MOSFET and a controller IC, designed for Indirect feed-back
Quasi-Resonant (including low frequency PRC)fly-back converter type SMPS (Switching Mode Power Supply)
applications. this IC realizes high efficiency, low noise, downsizing and standardizing of a power supply system
reducing external components count and simplifying the circuit designs. the device is provided in a five pin over-
molded TO-220 style package, affording dielectric isolation without compromising thermal characteristics.
(Note). PRC is abbreviation of “Pulse Ratio Control” (On-width control with fixed OFF-time).
Features
• Quasi-Resonant Operation
• Low-loss, Pulse-Ration-Control standby mode
• Under-voltage lockout with Hysteresis
• Adjustable switching speed for EMI control
• Low start-up circuit current (100uA max)
• Active low-pass filter for stabilizing the operation in case of light load
• Avalanche Energy Guaranteed MOSFET with high VDSS
• Built-in constant voltage drive circuit
• Built-in step drive circuit
• Built-in low frequency PRC mode (≒20kHz)
• Pulse-by-pulse Overcurrent Protection (OCP)
• Overvoltage Protection with latch mode (OVP)
• Thermal Shutdown with latch mode (TSD)
• Over-molded Five-Pin Package
Ordering Information
Type NO.
Marking
Package Code
SQ6601PT
SQ6601PT
TO-220F-5FL
Package Outline
TO-220 Fullpack (5 Lead)
KSD-I0U001-000
1
SQ6601PT
Internal Block Diagram
Pin Function
Pin Number
Pin Name
Pin Function
1
2
3
4
5
Drain
Source
GND
Power Switch MOSFET Drain Part
Power Switch MOSFET Source Part
Ground of the Control Section
Vcc
Supply Voltage of Output Drive & Control Section
FB/OCP
Voltage Mode Control Feedback Signal & Over Current Detection
Typical Connection Diagram
SQ6601PT
KSD-I0U001-000
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SQ6601PT
Absolute maximum ratings
(Ta=25°C, Unless otherwise specified)
Characteristic
Drain Source Voltage
Symbol Ratings
Unit
V
Note
VDS
ID
650
7
-
Drain Current
A
TC = 25℃
Peak Drain Current
IDP
28
A
Single Pulse
Single Pulsed Avalanche Energy
Control Supply Voltage
FB/OCP Voltage Range
Power Dissipation
EAS
640
mJ
V
L=23mH,VDD=100V, IDP=7.0A
VCC
FB/OCP
PD
20
-
-0.3 ~ +6
40
V
-
W
With infinite heatsink
Thermal Resistance, Junction to Case
Junction Temperature
RthJC
TJ
3.12
°C /W
°C
-
-
-
-
150
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
-25 ~ +125
-55 ~ +150
°C
°C
Recommended Operating Conditions
Time for input of quasi resonant signals.
For the Quasi resonant signal inputted to the VFB/OCP terminal at the time of quasi resonant operation, the signal
should be wider than Tth(2)
≥
㎲
KSD-I0U001-000
3
SQ6601PT
Electrical Characteristics
(VCC = 11V, Ta = 25°C ; Unless otherwise specified)
Characteristic
Start Threshold Voltage
Stop Threshold Voltage
Start up Supply Current
Operating Supply Current
Symbol
VTH(ST)
VTH(SP)
IST
Test Conditions
Min.
Typ. Max. Units
VCC Increasing
8.5
9.5
8
-
10.5
8.8
100
7
V
V
V
CC decreasing after turn on
7.2
start threshold voltage
VCC = VTH(ST) - 0.1V
-
㎂
㎃
㎃
㎲
㎲
㎲
V
ICC
VFB = 1V
-
3
4
-
Dynamic Operating Supply
Current
IDCC
-
-
30
-
10
Maximum Off Time
tMAX
Drain waveform high
Drain waveform high
Drain waveform high
60
Minimum Off Time
tMIN
-
1.5
1.0
18.7
Minimum Input Pulse Width
Over Voltage Threshold
tMIN(W)
VOVP
-
-
V
CC Increasing until shut down
15.3
17
output
V
CC decreasing until latch
Latch Release Voltage
Latch Holding Current
VRE
ICC(RE)
VFB
2.5
-
-
6.0
400
0.78
1.6
V
㎂
V
releasing
-
-
Feedback Threshold Voltage
Css Snchronized Voltage
Feedback Sink Current
-
0.68
1.3
1.2
0.73
1.45
1.35
VSYNC
ISINK
-
V
VFB = 1V
1.5
㎃
Thermal Shutdown Activation
Temperature
Drain-to-Source Breakdown
Voltage
TJ(TSD)
VDS
-
140
-
-
-
-
-
-
℃
V
ID = 300uA
650
-
Drain Leakage Current
On-State Resistance
Rise Time
IDS
VDS = 650V
-
-
-
300
1.2
250
㎂
Ω
RDS(ON) ID = 3.5A
tr 10% to 90%
ns
KSD-I0U001-000
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SQ6601PT
Electrical Characteristic Curves
Fig. 2 VTH(SP) vs. Ta
Fig. 4 VFB vs. Ta
Fig. 6 VOH vs. Ta
Fig. 1 ICC vs. Ta
Fig. 3 IST vs. Ta
Fig. 5 VTH(ST) vs. Ta
KSD-I0U001-000
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SQ6601PT
Electrical Characteristic Curves
Fig. 7 VOL vs Ta
Fig. 8 ICC vs Vth
Fig. 8 Safe Operating Area
Fig. 9 PD vs Tc
Fig. 10 Thermal Response
㎲
㎲
㎳
㎳
㎳
KSD-I0U001-000
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SQ6601PT
Outline Dimensions
unit : mm
2.70~2.90
9.90~10.10
1.10 Max.
0.60 Max.
0.90 Max.
5.08 Typ.
0.80 Max.
1.70 Typ.
1
2
3
4
5
KSD-I0U001-000
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SQ6601PT
The AUK Corp. products are intended for the use as components in general electronic
equipment (Office and communication equipment, measuring equipment, home
appliance, etc.).
Please make sure that you consult with us before you use these AUK Corp. products
in equipments which require high quality and / or reliability, and in equipments which
could have major impact to the welfare of human life(atomic energy control, airplane,
spaceship, transportation, combustion control, all types of safety device, etc.). AUK
Corp. cannot accept liability to any damage which may occur in case these AUK Corp.
products were used in the mentioned equipments without prior consultation with AUK
Corp..
Specifications mentioned in this publication are subject to change without notice.
KSD-I0U001-000
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