ML61_09 datasheet(6/13 Pages) MINILOGIC

6 / 13 page

P6/13

Rev. H, August 2009

ML61

Functional Description (Refers to CMOS Output)

1. Firstly, when a voltage, higher than the

Release Voltage (VDR) , is applied to the

Voltage Input pin (VIN), that voltage will

gradually fall. When a voltage higher than

the Detect Voltage (VDF) is applied to the

Input Voltage pin (VIN), output at VOUT

will be equal to the input at the VIN pin.

High impedance exists on the Output pin

(VOUT) with the N-channel open drain

configuration. If the pin is pulled-up. VOUT

will be identical to the pull-up voltage.

2. When the input Voltage (VIN) falls below

the Detect Voltage (VDF) level, the Output

Voltage (VOUT) is equal to the Ground

Voltage (VSS) level (detect state). Also

applicable to N-channel open drain

configuration.

3. When the Input Voltage (VIN) falls below

the Minimum Operating Voltage (VMIN)

level, output becomes unstable. In the case

of N-channel open drain configuration, as

the output pin is generally pulled-up, the

output will be equal to the pull-up

voltage.

4. When the Input Voltage (VIN) rises, output

become stable once the voltage has

exceeded VMIN. The Output Voltage (VOUT)

will remain equal to the Ground Voltage

(VSS) level until the Input Voltage (VIN)

reaches the Detect Release Voltage (VDR)

level.

5. When the Input Voltage (VIN) rises above

the Detect Release Voltage (VDR) level,

output at the Output pin (VOUT) is equal to

VIN. (High impedance exists with the

N-channel open drain output

configuration and VOUT follows the

pull-up voltage.)

Notes :

1. The difference between VDR and VDF

represents the Hysteresis Range.

2. The Propagation Delay Time (tDLY)

represents the time it takes for the Input

Voltage (VIN) to appear at the Output pin

(VOUT), once the said voltage has exceeded

the Release Voltage (VDR) level.

Timing Diagram

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