1 Features
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• Precision voltage and push-button monitor
• VDD range: 0.85V to 6V ( DL and PL outputs)
• VDD range: 1V to 6V ( PH output)
• Programmable sense and reset delay
• Nano quiescent current: 125nA (typical)
• High threshold accuracy: ±0.5% (typical)
• Precision hysteresis: 5% (typical)
• Adjustable threshold voltage: 0.505V (typical)
• Fixed threshold voltage: 0.8V to 5.4V
– Fixed threshold level available in 100mV steps
• 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: 1.5mm × 1.5mm WSON

2 Applications
• Electricity meters
• Building automation
• Body Control Module (BCM)
• Data center and enterprise computing
• Notebooks, desktop computers, servers
• Smartphones, hand-held products
• Portable, battery-powered equipment
• Solid-state drives
• STB & DVR

3 Description
The TPS3899 is a nano power, precision voltage
supervisor with ±0.5% threshold accuracy and
programmable sense and reset time delay in a 6
pin space saving 1.5mm x 1.5mm WSON package.
The TPS3899 is a feature-rich voltage supervisor that
offers the smallest total solution size in its class. Builtin
hysteresis along with programmable delay prevent
false reset signals when monitoring a voltage rail or
push button signals.
The separate VDD and SENSE pins allow for
the redundancy sought by high-reliability systems.
SENSE is decoupled from VDD and can monitor rail
voltages other than VDD. Optional use of external
resistors are supported by the high impedance input
of the SENSE pin. Both CTS and CTR provide delay
adjustability on the rising and falling edges of the
RESET signals. CTS also functions as a debouncer
by ignoring voltage glitches on the monitored voltage
rails and operates as a "manual reset" that can be
used to force a system reset.
The precision performance, best in-class features
in a compact form factor, makes the TPS3899
an ideal solution for wide ranging industrial and
battery-powered applications such as Factory/Building
Automation, Motor Drives, and consumer products.
The device is fully specified over a temperature range
of –40°C to +125°C (TA).