SRC0 Datasheet, PDF (1/48 Pages) STMicroelectronics – Power-up duration determined primarily by push-button press

SRC0
Smart push-button on/off controller with Smart Reset™ and
power-on lockout
Datasheet - production data
 Industrial operating temperature -40 to +85 °C
 Available in TDFN12 2 x 3 mm package
TDFN12
Applications
 Wearable
 Activity tracker
 Smartwatch
 Smartglasses
Features
 Operating voltage 1.6 V to 5.5 V
 Low standby current of 0.6 µA
 Adjustable Smart Reset^™ assertion delay time
driven by external C_SRD
 Power-up duration determined primarily by
push-button press
 Debounced PB and SR inputs
 PB and SR ESD inputs withstand voltage up to
±15 kV (air discharge) ±8 kV (contact
discharge)
 Active high or active low enable output option
(EN or EN) provides control of MOSFET, DC-
DC converter, regulator, etc.
 Secure startup, interrupt, Smart Reset^™ or
power-down driven by push-button
 Precise 1.5 V voltage reference with 1%
accuracy
Table 1. Device summary
Device
RST
C_SRD PB / SR EN or EN
INT
Startup process
SRC0 open drain⁽¹⁾ 3
3
push-pull
open drain⁽¹⁾
PB must be held low until the
PS_HOLD(2) confirmation
1. External pull-up resistor needs to be connected to open drain outputs.
2. For a successful startup, the PS_HOLD (Power Supply Hold) needs to be pulled high within specific time, t_{ON_BLANK}.
May 2014
This is information on a product in full production.
DocID026008 Rev 2
1/48
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