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PDF CR6202 Data sheet ( Hoja de datos )
| Número de pieza | CR6202 | |
| Descripción | Switching Power Supply Controller ICs | |
| Fabricantes | Power Rail | |
| Logotipo |  |
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 1. - Switching Power Supply Controller  Hay una vista previa y un enlace de descarga de CR6202 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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CR6202
Switching Power Supply Controller ICs
Features
Set-in high-voltage power switch transistor of 700V and few peripheral components
With the modulation of lock pulse width, the testing is according to the pulse limit current.
With the function of output frequency reduction, the non-output power consumption can be
less than 0.25W.
Inner-built ramp and anti-feedback compensation function
The independent upper-limit current testing controller deals with over-current and over-load
of the controller real-timely.
The period emission pole is turned off and it outputs by deflected voltage, and the pressure
resistance of the power transistor is improved.
Set-in current limit resistance with temperature compensation, which makes the current limit
precise
Set-in heat protection circuit
Startup is accomplished with the magnification function of the switch power transistor, and
the power consumption of startup resistance is reduced more than10 times.
Few peripheral components
Low startup and operating current
VCC over-voltage automatic limit
Wide-voltage output power up to 5W, and the narrow-voltage output power up to 8W.
Pb-Free DIP-8L Package
General Description
CR6202 is a high-performance current mode flyback PWM controller for AC/DC
transformer with high performance and price ratio, which supplies continuous output power of
5W within the range of wide-voltage between 85V and 265V, the output power of peak value can
be up to 18W. The combination of optimized reasonable circuit design and bipolar facture
technology with high performance and price ratio economizes the whole cost ultimately. The
power controller can be applied to the typical flyback circuit topology so as to form a simple
AC/DC transformer. The startup circuit inside IC is designed as a particular current inhalation
way, so it can start up with the magnification function of the power switch transistor itself, which
lessens the power consumption for starting the resistance remarkably; when the output power is
lower, IC will reduce the working frequency automatically, therefore, the standby power
consumption becomes extremely low. When the power transistor is closed, the interior circuit will
Aug.2008 V2.0
1/14
1 page  
CR6202
voltage
Frequency change ratio with Ta=0-85ć
temperature
Vibration amplitude of oscillator
(Vp-p)
Drop edge of oscillator
Ct=330PF
-
-
-
Feedback
Item
Pull-up current
pull-down resistance
Power supply rejection ratio
Testing condition
Ct=330PF
Vcc=5.5-9V
Vcc=5.5-9V
Min.
-
-
-
Current sampling
Item
Current sampling limit
upper limit current prevention
Power supply rejection ratio
transmission delay
Testing condition
Min.
0.55
0.25
-
-
Pulse Width Modulation
Item
Maximum duty cycle
Minimum duty cycle
Testing condition
Min.
55
-
Power Supply current
Item
Startup acceptance current
Startup static current
Static current
Startup voltage
Close voltage ofoscillator
Restart voltage
Over-voltage limit margin
Testing condition
Vcc=8V
Min.
1.6
-
-
8.5
4.0
-
10.0
-
2.4
900
Typ.
0.50
23
60
Typ.
0.60
0.27
60
150
Typ.
57
-
Typ.
2.4
50
3.0
9.0
4.4
3.6
10.8
1
-
-
Max.
0.60
-
70
Max.
0.65
0.29
70
250
Max.
65
3.5
Max.
3.2
80
-
9.8
4.6
-
12.0
www.DataSheet4U.com
%
V
ns
Unit
mA
KΩ
dB
Unit
V
A
dB
ns
Unit
%
%
Unit
mA
μA
mA
V
V
V
V
Aug.2008 V2.0
5/14
5 Page 
CR6202
www.DataSheet4U.com
CR6202_5V1A FLYBACK POWER
6&+(0$7,&
C1 C2
L1
R1 R2 C4
D1
1
2
4
5
D2
C11
B1
1
2
3
4
OB OC
CT OC
GND OE
FB VCC
8
7
6
5
R3
C9 U1 C3
F1
4
C10 3
LN
D3
T1 10
9
C5 R4
7
6
L2 DC
LED
C6 C8
R7
CY1
R5 R6
C A1
E K2
U2
C7 DC
R8 R9
1
U3 R10
3&%/$<287
Aug.2008 V2.0
PCB Layout
11/14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CR6202.PDF ] | |
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