TPL5000 Datasheet, PDF (1/21 Pages) Texas Instruments – TPL5000 Nano Power Programmable Timer with Watchdog Functionality

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TPL5000
SNAS628B – JULY 2013 – REVISED DECEMBER 2014
TPL5000 Nano-Power Programmable Timer with Watchdog Functionality
1 Features
•1 Supply Voltage from1.8 V to 5.0 V
• Current Consumption 30 nA (typical, at 2.5 V)
• Watchdog Functionality
• Reset Functionality
• Selectable Timer Intervals 1 to 64 s
2 Applications
• Battery-Powered Systems
• Energy-Harvesting Systems
• Remote Data-Logger
• Sensor Node
• Building Automation
• Consumer Electronic
• Low-Power Wireless
• Safety and Security Platforms
3 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
(such as 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 microcontroller, if necessary. The device is
packaged in a 10-pin VSSOP package.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
TPL5000
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 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
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.