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).