STM6600EU55DM6E View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STM6600EU55DM6E

Smart push-button on/off controller with Smart Reset™ and power-on lockout

STMicroelectronics 

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Waveforms

4

Waveforms

STM6600 - STM6601

Figure 7. Successful power-up on STM6600 (PB released prior to tON_BLANK expiration)

Push-button pressed and

PB connected to GND

processor

sets PSHOLD

PB released prior to t ON_BLANK

expiration

PSHOLD state detected as high

EN remains asserted

PB(1)

PSHOLD(2)

VCC undervoltage detection

ignored

PSHOLD

ignored

internal pull-down resistor

connected to PSHOLD input

EN(3)

RST

tDEBOUNCE

tREC

tON_BLANK

Note: INT signal is held high during power-up (i.e. until PB release in this case).

VCC is considered VCC > VTH+.

AM00247v3

1. PB detection on falling and rising edges.

2. Internal pull-down resistor 300 kΩ is connected to PSHOLD input during power-up.

3. EN signal is high even after PB release, because processor sets PSHOLD signal high before PB is released.

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Doc ID 15453 Rev 7

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