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THV6530 Datasheet(PDF) 9 Page - THine Electronics, Inc.

Part No. THV6530
Description  THV6530 is a controller IC power supply system with
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Maker  THINE [THine Electronics, Inc.]
Homepage  http://www.thine.co.jp/index_e.html
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THV6530 Datasheet(HTML) 9 Page - THine Electronics, Inc.

 
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THL6530_Rev.1.00_E
Soft start (SS)
The boost converter carries the soft start function in
order to prevent the rush current at a start-up. This
function is to raise output voltage slowly. It is because
overshooting and rush current occur when input voltage
is inputted.
The soft-start time of the boost controller is 7ms, and the
soft-start time of positive and negative charge pump is
5ms.
Over current protection (OCP)
In order to restrict the over-current by the abnormalities
of load, etc., the over-current protection circuit is built in.
Over-current detection of pulse-by-pulse system is
adopted. An output transistor is turned off if the current
which flows into an output transistor reaches boost
converter limit current (Ilim). An over-current protection
circuit detects the peak current of an inductor.
Input-and-output voltage and ripple current is taken into
consideration.
Thermal shut down (TSD)
In order to prevent destruction by heat, the thermal
shutdown circuit is built in. If the junction temperature
Tj is 125oC or more, the thermal shutdown circuit will
operate and it will stop switching operation. Moreover,
the hysteresis of a thermal shutdown circuit is 15oC. If Tj
falls, output voltage will return.


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