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XC6224

Series

■ NOTES ON USE

<Low ESR Capacitor>

pin.

1． For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings

be exceeded.

2. Torex places an importance on improving our products and its reliability.

However, by any possibility, we would request user fail-safe design and post-aging treatment on system or equipment.

3. Where wiring impedance is high, operations may become unstable due to the noise and/or phase lag depending on

■ OPERATIONAL EXPLANATION

The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The

protection operate in relation to the level of output current. Further, the IC’s internal circuitry can be shutdown via the CE

pin signal.

<Current Limiter, Short-Circuit Protection>

The protection circuit operates as a combination of an output current limiter and fold-back short circuit protection.

When load current reaches the current limit level, the output voltage drops. As a result, the load current starts to reduce

with showing fold-back curve. The output current finally falls at the level of 35mA when the output pin is short-circuited.

<CE Pin>

state in the XC6224A series because of a high active and no pull-down. Although the CE pin is equal to CMOS input

configuration, the CE pin input current which flows into a pull-down resistor will increase in the XC6224B series

(1) XC6224Axxxxx

(2) XC6224Bxxxxx