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PDF CRE6203 Data sheet ( Hoja de datos )
| Número de pieza | CRE6203 | |
| Descripción | PWM Controller of High-performance Current Mode | |
| Fabricantes | CRE Semiconductor | |
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CRE6203
PWM Controller of High-performance Current Mode
Product Specification
GENERAL DESCRIPTION
PWM controller of high-performance current mode is
specially designed for AC/DC transformer with high
performance and price ratio, which supplies continuous
output power of 12W within the range of wide-voltage
between 85V and 265V, the output power of peak value
can be up to 15W. 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 fly-back circuit topology so as to form a
simple AC/DC transformer. When the output power is
lower, IC will reduce the working frequency automatically,
therefore, the standby power consumption becomes
extremely low. When the power tube is closed, the interior
circuit will bias it reversely, utilize the characteristic of high
pressure resistance CB of bipolar transistor directly, and
improve its pressure resistance capacity to the high
voltage of 800V, which ensures the security of the power
tube.
.
Meanwhile, the perfect function of overload and
saturation prevention is provided inside of IC, which can
keep away some abnormal status, such as overload,
saturation of transformer, and output short circuit, so as to
improve the reliability of the power supply. The current
limit and clock frequency can be set up by exterior
components.
.
Now the standard encapsulation and the environmental
protection leadless encapsulation that meets European
standard of DIP8 are supplied .
.
FEATURES
Set-in high-voltage power switch tube of 800V 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 0.3W.
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
tube 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 tube, 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.
.
Continuous wide-voltage output power reaches 12W,
and the output power of peak value arrives at 15W.
Compatible with THX203/RM6203 .
.
APPLICATIONS
Adaptor (for example, travel charger, out
power station)
.
Open Frame (such as electromagnetic oven,
microwave oven and etc.)
.
CRE Semiconductor Inc.
(1)
Free Datasheet http://www.Datasheet4U.com
1 page  
CRE6203
PWM Controller of High-performance Current Mode
ELECTRICAL CHARACTERISTICS
(TA = 25C, VCC = 5.5-5.7V, Ct=680pF, RS=1ohm , if not otherwise noted)
PARAMETER
Symbol
TEST CONDITIONS
Output Section
Max withstanding voltage of the switching
tube
I-OC=10mA
Saturation voltage
Output Rise time
Output Fall time
Output limiting current
Vsat I-OC=250mA
TR CL=1nF
TF CL=1nF
TJ=0—100℃
Reference Section
Reference Output voltage
Line Regulation
VREF
Io=1.0mA
VCC=6.5—9V
Load Regulation
Io=0.1mA—1.2mA
Temperature stability
Output noise voltage
Long Term stability
F=10HZ—10KHZ
1000hour@85℃
Oscillator Section
Oscillating Frequency
F_OSC
CT=680pF
Voltage stability
VCC=6.5-9V
Temperature stability
Ta=0-85℃
Oscillator Amplitude (VP-P)
Feedback Section
Input
impedance
Pull up Current
Pull down Resistor
FB=2.5V,IS=0
Power Supply Suppression Ratio
VCC=6.5-9V
PWM Section
Maximum Duty Ratio
D_max
Minimum Duty Ratio
D_min
Power Supply Current Section
Initiation Reception Current
Initiation Static Current
Static Current
Start up voltage
Oscillator turn off voltage
Re-enabling voltage
Over Voltage limiting Threshold
IQ VCC=8V
Product Specification
MIN TYPE MAX UNIT
800 V
1V
75 ns
75 ns
250 270 290 mA
2.4 2.5 2.6
V
2 20 mV
3%
0.2 mV/℃
50 uV
5 mV
55 61 67 KHZ
1%
1%
2.2 V
0.55
0.60 0.65
30
60 70
mA
KΩ
dB
53 57 61 %
3.5 %
1.6
2.4 3.2
mA
55 80
uA
2.8
3.0 3.2
mA
8.6 8.8 9.0
V
4.4 4.6 4.8
V
3.6 3.8 4.0
V
9.5
10 10.5
V
NOTE:
The CRE6203 is guaranteed to meet performance specifications from0℃ to 70℃. Specifications over the -40℃ to 85℃
operating temperature range are assured by design, characterization and correlation with statistical process controls.
CRE Semiconductor Inc.
(5)
Free Datasheet http://www.Datasheet4U.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet CRE6203.PDF ] | |
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