XC6103C621 datasheet(14/26 Pages) TOREX

14 / 26 page

14/26

XC6101~XC6107, XC6111~XC6117 Series

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NOTES ON USE

1. Please use this IC within the stated maximum ratings. Operation beyond these limits may cause degrading or permanent

damage to the device.

2. When a resistor is connected between the VIN pin and the input, the VIN voltage drops while the IC is operating and a

malfunction may occur as a result of the IC’s through current. For the CMOS output products, the VIN voltage drops while

the IC is operating and malfunction may occur as a result of the IC’s output current. Please be careful with using the

XC6111~XC6117 series (without hysteresis).

3. In order to stabilize the IC’s operations, please ensure that the VIN pin’s input frequency’s rise and fall times are more than

µ sec/V.

4. Noise at the power supply may cause a malfunction of the watchdog operation or the circuit. In such case, please

strength the line between VIN and the GND pin and connect about 0.22

µF of a capacitor between the VIN pin and the GND

pin.

5. Protecting against a malfunction while the watchdog time out period, an ignoring time (no reaction time) occurs to the rise

and fall times. Referring to the figure below, the ignoring time (no reaction time) lasts for 900

µsec at maximum.

GND

TW D

No reaction time

(MAX 900usec)

TDR

VIN Pin Wave Form

TDR

TW D

No reaction time

(MAX 900usec)

WD Pin Wave Form

RESETB Pin Wave Form (VDFL)

XC6103C621 Datasheet(PDF) 14 Page - Torex Semiconductor