Datasheet

STM6600, STM6601 Waveforms
Doc ID 15453 Rev 11 15/52
Figure 8. Successful power-up on STM6600 (t
ON_BLANK
expires prior to PB release)
1. PB detection on falling and rising edges.
2. Internal pull-down resistor 300 kΩ is connected to PS
HOLD
input during power-up.
3. t
ON_BLANK
expires prior to PB release so PS
HOLD
is checked at its expiration.
PS
HOLD
ignored
internal pull-down resistor
connected to PS
HOLD
input
V
CC
undervoltage detection
ignored
PB
(1)
PS
HOLD
(2)
EN
(3)
RST
Push-button pressed and
PB connected to GND
t
DEBOUNCE
t
REC
processor
sets PS
HOLD
PB released
t
ON_BLANK
t
ON_BLANK
expired prior to PB
release
PS
HOLD
state detected as high
EN remains asserted
AM00247bv2
INT signal is held high during power-up (i.e. until t
ON_BLANK
expires in this case).
V
CC
is considered V
CC
> V
TH+
.
Note: