STM6600 STMicroelectronics, STM6600 Datasheet - Page 10

• Manufacturer Part Number: STM6600
• Description: Smart push-button on/off controller with smart reset and power-on lockout
• Manufacturer: STMicroelectronics

Pin descriptions
Note:
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PB - power ON switch
This input is equipped with a voltage detector with a factory-trimmed threshold and has
± 8 kV HBM ESD protection.
When the PB button is pressed and held, the battery voltage is detected and EN (or EN) is
asserted if the battery voltage is above the threshold V
period (see
A short push of the push-button during normal operation can initiate an interrupt through
debounced INT output (see
either assert reset output RST (see
Figure
A switch to GND must be connected to this input (e.g. mechanical push-button, open drain
output of external circuitry, etc.), see
(i.e. a transition from full V
resistor connected.
VCC
During power-up, VCC
successful power-up (i.e. during normal operation) VCC
detected (see
Output type is active low and open drain by default. Open drain output type requires a pull-
up resistor. A 10 kΩ is sufficient in most applications.
VCC
PB
If the push-button PB is pressed, the pin stays low during the t
If PB is asserted for the entire t
t
deasserted (see
At startup on the STM6601 PB
assertion will be ignored until t
default. Open drain output type requires a pull-up resistor. A 10 kΩ is sufficient in most
applications.
INT_Min
OUT
LO
LO
19) based on the option used.
. If PB is asserted after t
- PB input state
- high threshold detection output
is floating when STM660x is in standby mode.
Figure
Figure
Figure
13).
13).
LO
22). PB
is low when V
CC
Figure
below specified V
Doc ID 15453 Rev 10
ON_BLANK
OUT
DEBOUNCE
OUT
INT_Min
14) and a long push of PB and SR simultaneously can
will respond only to the first PB assertion and any other
ignores PB assertion during an undervoltage condition.
Figure
Figure
expires, PB
CC
expires. This output is active low and open drain by
period, PB
supply voltage is below the V
18) or deassert the EN or EN output (see
1. This ensures a proper startup signal on PB
IL
). PB input has an internal 100 kΩ pull-up
OUT
OUT
TH+
will return high as soon as PB is
LO
will then stay low for at least
during the whole t
is low anytime undervoltage is
DEBOUNCE
STM6600 - STM6601
TH+
time period.
threshold. After
DEBOUNCE