11

GM5510

STANDARD

VOLTAGE DETECTOR

C

Circuit using an input resistor

GM5510N

V

IN

Input

RIN

Voltage drop

IOUT

VIN

GM5510C

VSS

VOUT

Input

RIN

Voltage drop

IOUT

VIN

GM5510C

GM5510N

VSS

VOUT

Include through current

Application Notes

1.

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

permanent damage to the device.

2.

below)

3.

N-ch output configurations, oscillation may occur as a result of through Current at the time of voltage release

even if load Current (IOUT) does not exist. Refer to the Oscillation Description (2) below)

4.

5.

than several µSec/V.

6.

source. In such casese, please ensure that RIN is less than 10kΩ and that C is more than 0.1µF

Oscillation Description

(1) Output Current oscillation with the CMOS output Configuration

When the voltage applied at IN rises, release operations commence and the detector's output voltage increases. Load

"release – detect – release" repetition.

Further, this condition will also appear via means of a Similar mechanism during detect operations.

(2) Oscillation as a result of through Current

Since the GM5510 Series are CMOS IC'S, through current will flow when the IC'S internal circuit switching operates

through Current's resistor (RIN) during release voltage operations. (Refer to Figure 3)

Since hysteresis exists during detect operations, oscillation is unlikely to occur.

Figure 2 Oscillation in relation to output current

Figure 3 Oscillation in relation to through urrent