SX8124ISTRT SEMTECH [Semtech Corporation], SX8124ISTRT Datasheet - Page 8

• Manufacturer Part Number: SX8124ISTRT
• Description: 24 hours timer synchronized on 50/60Hz mains
• Manufacturer: SEMTECH [Semtech Corporation]

ACS - Revision 2.4
© Semtech Corp.
4
4.1
4.2
4.3
ADVANCED COMMUNICATIONS & SENSING
1.05V
0.95V
0.9V
0.6V
0V
Power Modes
Safe mode
The internal system goes in Safe mode as soon as the VDD voltage is above 0.6-0.7V. In this mode all pins are
set in high impedance and are inactive. This guarantees a safe start-up.
Low voltage mode
The internal 24h timer and phase detection/synchronization functions are active. All input ( BUTTON, PHASE,
DURATION ) pins functionalities remains active but will not activate the outputs.
All outputs are forced to a default static state as follows:
Active mode
The outputs are active and set according to the device internal states:
VDD
OUT pin is forced high
NOUT pin is forced low
LED pin is low
OUT and NOUT pin active (see
LED pin sending 250ms bursts (see
IOs ON
IOs OFF
Timer ON / OFF
Safe
SAFE
October 2010
VOLTAGE
LOW
Figure 3. Operating modes vs VDD voltage
“Operating” on page
“LED output” on page
Page 8
Hysteresis
24 hours timer synchronized on 50/60Hz mains
ACTIVE
10)
15)
VOLTAGE
LOW
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SX8124
DATASHEET
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