TPS3899
TPS3899
www.ti.com
SLVSFM0 – SEPTEMBER 2020
SLVSFM0 – SEPTEMBER 2020
TPS3899
Nano 125 nA IQ, 1% Accurate Voltage Supervisor, Push-Button Monitor with
Programmable Sense and Reset Delay
1 Features
3 Description
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Supply voltage monitor and push-button monitor
VDD range: 0.7 V to 6 V
Programmable sense and reset delay
Nano quiescent current: 125 nA (typ)
High threshold accuracy: ±0.5% (typ)
Precision hysteresis: 5% (typ)
Adjustable threshold voltage: 0.51 V (typ)
Multiple output topologies
– DL: open-drain active-low
– PL: push-pull active-low
– PH: push-pull active-high
Temperature range: –40°C to +125°C
Package: 1.5-mm × 1.5-mm WSON
The TPS3899 is a nano-Iq, precision voltage
supervisor that monitors system voltages or push-
button inputs as low as 0.51 V. When the voltage of
SENSE drops below the VIT- threshold, RESET/
RESET will toggle after the programmed sense delay,
set by CTS, has been reached. The TPS3899 asserts
an open-drain or push-pull RESET/RESET signal to
active-low logic (RESET) or active-high logic (RESET).
The RESET/RESET output remains active until the
SENSE voltage returns above the rising voltage
threshold (VIT- + VHYS) for the reset delay set by CTR.
The TPS3899 family uses a precision reference to
achieve ±1% threshold accuracy. The sense delay
and reset delay time can be user-adjusted by
connecting a capacitor to the CTS and CTR pins
respectively. The TPS3899 has a nano quiescent
current of 125 nA (typ) and is available in a small 1.5-
mm × 1.5-mm WSON package, making the device
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2 Applications
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Electricity meters
Building Automation
well-suited
for
battery-powered
and
space-
Body Control Module (BCM)
Data center and enterprise computing
Notebooks, desktop computers, servers
Smartphones, hand-held products
Portable, battery-powered equipment
Solid-state drives
constrained applications. The device is fully specified
over a temperature range of –40°C to +125°C (TA).
Device Information
PART NUMBER
TPS3899
PACKAGE (1)
BODY SIZE (NOM)
WSON (6) DSE
1.50 mm × 1.50 mm
STB & DVR
1. For all available packages, see the orderable
addendum at the end of the data sheet
0.7 V to 6.0 V
*Rpull-up
VDD
SENSE
RESET
CTR
Push-button
input
TPS3899
CTS
GND
Rpull-up required for open-drain variants only
Figure 3-1. Typical Application Circuit
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. ADVANCE INFORMATION for preproduction products; subject to change
Copyright © 2020 Texas Instruments Incorporated
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