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STM6600AS24DM6F Datasheet(PDF) 26 Page - STMicroelectronics

Part # STM6600AS24DM6F
Description  Smart push-button on/off controller with Smart ResetTM and power-on lockout
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM6600AS24DM6F Datasheet(HTML) 26 Page - STMicroelectronics

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STM6600 - STM6601
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Doc ID 15453 Rev 7
Figure 20.
Undervoltage detected for <tSRD
1.
VCC goes above VTH+ within tSRD thus power is not disabled after tSRD expires.
2.
tSRD period is set by external capacitor CSRD.
Figure 21.
Undervoltage detected for >tSRD
1.
After tSRD expires VCC is still insufficient (below VTH+) thus power is disabled (EN goes low or EN goes high).
2.
tSRD period is set by external capacitor CSRD.
PB status ignored
V CC
under-
voltage
detection
ignored
VCC-Min
VCC
LO
VCC
(1)
EN
and EN is deasserted
accordingly
PB status
ignored
processor interrupt starts power-down sequence
processor sets PSHOLD low
tSRD(2)
set by CSRD
tDEBOUNCE
tINT_Min
tEN_OFF
INT
VCC
undervoltage
detected
V
TH+
V
TH–
PSHOLD
AM00254v1
EN
VCC
LO
VCC-Min
PB status
ignored
VCC is below VTH+ even after tSRD expires
thus power is disabled (EN goes low) and
PB is monitored for regular startup
VCC
under-
voltage
detection
ignored
INT
PS
HOLD
VCC
undervoltage
detected
VTH+
VTH–
VCC
(1)
PB status ignored
t
DEBOUNCE
t
INT_Min
t
EN_OFF
t
SRD
(2)
set by C
SRD
AM00255v1



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