DM160220 datasheet(6/20 Pages) MICROCHIP

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MTCH101

DS40001664B-page 6

Preliminary

 2012-2013 Microchip Technology Inc.

4.0

POWER MODE

The MTCH101 has two power mode options: Normal

mode and Low-Power mode. The state of the MTPM

pin determines the power mode.

4.1

Normal Mode Option

The device will run in Normal mode if the MTPM pin is

set high and no proximity or touch is detected. In this

mode, after an active scan, sleep time is between 69

and 105 ms, as shown in Figure 4-1. The sleep time

depends on the VDD voltage, the lower the voltage, the

more time it will be in the Idle state.

FIGURE 4-1:

NORMAL MODE

4.2

Low-Power Mode Option

The device will run in Low-Power mode if the MTPM pin

is set low and no proximity or touch is detected. In this

mode, after an active scan, sleep time is between 572

and 845 ms, as shown in Figure 4-2. As in Normal

mode, the sleep time depends on the VDD voltage, the

lower the voltage, the more time it will be in the Idle

state.

FIGURE 4-2:

LOW-POWER MODE

Note:

If the device makes a proximity or touch

detection, it will automatically perform

active scans continually. Once the device

releases from its proximity-detected state,

it will return to the power mode set by the

MTPM pin.

MTI

Active

Scan

Sleep: 69~105 ms

MTI

Active

Scan

Sleep: 572~845 ms

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