THV6530 datasheet(9/11 Pages) THINE | THV6530 is a controller IC power supply system with

9 / 11 page

THine Electronics, Inc.

9/11

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.

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