STM6600EU52DM6F(2010) 查看數據表（PDF） - STMicroelectronics

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STM6600EU52DM6F
(Rev.:2010)

STM6601 Smart push-button on/off controller with Smart Reset™ and power-on lockout

STMicroelectronics 

Waveforms

STM6600 - STM6601

Figure 11. Successful power-up on STM6601

Push-button pressed and

PB connected to GND

tON_BLANK expires

processor

PSHOLD state detected as high

sets PSHOLD EN remains asserted

PB (1)

(2)

PSHOLD

PB status and VCCundervoltage

detection ignored

PSHOLD ignored

internal pull-down resistor

connected to PSHOLD input

EN(3)

RST

t DEBOUNCE

t REC

tON_BLANK

Note: INT signal is held high during power-up (i.e. until tON_BLANK expires in the case of the STM6601).

VCC is considered VCC > VTH+.

AM00250v2

1. PB detection on falling edge.

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

3. PSHOLD signal is ignored during tON_BLANK. When tON_BLANK expires, the level of the PSHOLD signal is high therefore the

EN signal remains asserted.

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Doc ID 15453 Rev 7

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