STM6600 Datasheet, PDF (1/51 Pages) STMicroelectronics – Smart push-button on/off controller with Smart ResetTM and power-on lockout

STM6600
STM6601
Smart push-button on/off controller with
Smart Reset^TM and power-on lockout
Features
■ Operating voltage 1.6 V to 5.5 V
■ Low standby current of 1 µA
■ Adjustable Smart Reset™ assertion delay time
driven by external C_SRD
■ Power-up duration determined primarily by
push-button press (STM6600) or by fixed time
period, t_{ON_BLANK} (STM6601)
■ 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
■ Industrial operating temperature –40 to +85 °C
■ Available in TDFN12 2 x 3 mm package
TDFN12
Applications
■ Portable devices
■ Terminals
■ Audio and video players
■ Cell phones and smart phones
■ PDAs, palmtops, organizers
Table 1. Device summary
Device
RST
C_SRD PB / SR EN or EN
INT
Startup process
STM6600 open drain⁽¹⁾ ✓
✓
push-pull
open drain⁽¹⁾
PB must be held low until the
PS_HOLD(2) confirmation
STM6601 open drain⁽¹⁾ ✓
✓
push-pull
open drain⁽¹⁾
PB can be released before 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}.
June 2010
Doc ID 15453 Rev 7
1/51
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