STM6600FS22DM6E 查看數據表（PDF） - STMicroelectronics

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STM6600FS22DM6E

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

STMicroelectronics 

Waveforms

STM6600 - STM6601

Figure 9. Unsuccessful power-up on STM6600 (PB released prior to tON_BLANK)

Push-button pressed and

PB connected to GND

PB released

PSHOLD state detected as low

EN deasserted

PB(1)

PSHOLD(2)

VCC undervoltage detection

ignored

PSHOLD

ignored

internal pull-down resistor

connected to PSHOLD input

PB status

ignored

EN(3)

RST

tDEBOUNCE

tREC

tON_BLANK

tEN_OFF

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

VCC is considered VCC > VTH+.

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 goes low with PB release, because processor did not force PSHOLD signal high.

AM00248v3

16/51

Doc ID 15453 Rev 7

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