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| TPL5000 Datasheet, PDF (1/15 Pages) Texas Instruments – TPL5000 Nano Power Programmable Timer with Watchdog Functionality | |||
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TPL5000
www.ti.com
SNAS628A â JULY 2013 â REVISED JULY 2013
TPL5000 Nano Power Programmable Timer with Watchdog Functionality
Check for Samples: TPL5000
FEATURES
1
⢠Supply Voltage from1.8V to 5.0V
⢠Current Consumption 30nA (typ, at 2.5V)
⢠Watchdog Functionality
⢠Reset Functionality
⢠Selectable Timer Intervals 1s to 64s
APPLICATIONS
⢠Battery powered systems
⢠Energy harvesting systems
⢠Remote data-logger
⢠Sensor node
⢠Building automation
⢠Consumer electronic
⢠Low power wireless
⢠Safety and security platforms
DESCRIPTION
The TPL5000 is a long-term timer IC optimized for
low power applications. The TPL5000 can replace a
micro controller's (µC) internal timer, allowing the µC
to stay in low power sleep mode instead of running a
timer, providing a total power consumption reduction
of 60 to 80%. The TPL5000 is designed for use in
interrupt-driven applications and provides selectable
timing from 1 second to 64 seconds. Some Standards
(i.e. EN50271) require implementation of a watchdog
function for safety. The TPL5000 realizes this
watchdog function without consuming additional
power. The TPL5000 can also monitor a battery
management IC via a power-good digital input and
reset the µC if necessary. The device is packaged in
a 10-pin VSSOP package.
Simplified Application Schematic
VOUT VBAT_OK
VIN
POWER MANAGEMENT
GND
TPL5000
D0
PGOOD
D1
RSTn
D2
WAKE
VDD
TCAL
GND
DONE
µC
Rp
100k
VDD
RST
GPIO
GPIO
GPIO
GND
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated
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