NJU3555

NJU8754

-3 -

Ver.2003-03-12

FUNCTIONAL DESCRIPTION

(1) Signal Output

2nd-order or higher LC filter. A switching regulator with a high response against a voltage fluctuation is the best

stabilization of the power is required.

(2) Standby

By setting the STBY pin to “L”, the standby mode is enabled. In the standby mode, the entire functions of the

NJU8754

(3) Mute

square wave(Duty: 50%).

(4) Low Voltage Detector

(5) Short Protection Circuit

The short protector, which protects the NJU8754 from high short-circuit current, turns off the output driver.

After about 5 seconds from the protection, the NJU8754 returns to normal operation. The short protector is

enabled in response to following accidents.

Note 1) The detectable current and the period for the protection depend on the power supply voltage and

ambient temperature.

Note 2) The short protector is not effective for a long term short-circuit but for an instantaneous accident.

Continuous high-current may cause permanent damage to NJU8754.