THX203H DIP8
z Set-in high-voltage power switch tube of 700V and few peripheral components
z With the modulation of lock pulse width, the testing is according to the pulse limit
current.
z With the function of output frequency reduction, the non-output power consumption can
be less than 0.3W.
z Inner-built ramp and anti-feedback compensation function
z The independent upper-limit current testing controller deals with over-current and
over-load of the controller real-timely.
z The period emission pole is turned off and it outputs by deflected voltage, and the
pressure resistance of the power tube is improved.
z Set-in current limit resistance with temperature compensation, which makes the current
limit precise
z Set-in heat protection circuit
z Startup is accomplished with the magnification function of the switch power tube, and
the power consumption of startup resistance is reduced more than10 times.
z Few peripheral components
z Low startup and operating current
z VCC over-voltage automatic limit
z Continuous wide-voltage output power reaches 12W, and the output power of peak value
arrives at 18W
Applied Field
z Adaptor (for example, travel charger, out power station)
z Open Frame (for example, DVD, DVB)
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توضیحات
THX203H DIP8 original
Introduction 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 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
tube 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 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.
توضیحات تکمیلی
| Package |
DIP-8 |
|---|---|
| کیفیت |
original |
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