STM6600HA24DM6E View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM6600HA24DM6E

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

STMicroelectronics 

STM6600 - STM6601

Waveforms

Figure 12. Unsuccessful power-up on STM6601

Push-button pressed and

PB connected to GND

tON_BLANK expires

PSHOLD state detected as low

EN deasserted

Push-button pressed and

PB connected to GND

(1)

PB

(2)

PSHOLD

PSHOLD ignored

intenal pull-down resistor

connected to PSHOLD input

EN(3)

RST

tDEBOUNCE

tREC

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+.

AM00238v2

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 not high therefore

the EN signal goes low. Even releasing the PB button after the tON_BLANK will not prevent this.

Doc ID 15453 Rev 7

19/51

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