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ETC - PWM Controller of High-performance Current Mode

Numéro de référence GW6203
Description PWM Controller of High-performance Current Mode
Fabricant ETC 
Logo ETC 





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GW6203 fiche technique
GW6203
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 18W within the range of wide-voltage
between 85V and 265V, the output power of peak value
can be up to 24W. 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 700V, 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 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 0.3W.
„ 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 18W,
and the output power of peak value arrives at 24W.
„ Compatible with THX203/RM6203
APPLICATIONS
„ Adaptor (for example, travel charger, out
power station)
„ Open Frame (such as electromagnetic oven,
microwave oven and etc.)
Confidential
(1)

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