TPS3106K33DBV

V

DD

RSTVDD

RSTSENSE

GND

SENSE

R1

R2

GND

V

CORE

V

IO

RESET

R3

DSP

3.3 V

1.6 V

GND

MR

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TPS3103, TPS3106, TPS3110

SLVS363F – AUGUST 2001 – REVISED NOVEMBER 2015

TPS3103, TPS3106, TPS3110 Ultralow Supply-Current Voltage Monitor

With Optional Watchdog

1 Features

3 Description

The TPS310x and TPS311x families of supervisory

1

•

Precision Supply Voltage Supervision Range:

circuits

provide

circuit

initialization

and

timing

0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V

supervision, primarily for DSP and processor-based

•

High Trip-Point Accuracy: 0.75%

systems.

•

Supply Current of 1.2

μA (Typical)

During power-on, RESET is asserted low when the

•

RESET Defined With Input Voltages as Low as

0.4 V

•

Power-On Reset Generator With a Delay Time of

130 ms

•

Push/Pull or Open-Drain RESET Outputs

voltage, an internal timer delays the transition of the

•

Package Temperature Range: –40°C to 85°C

RESET signal from low to high for the specified time.

2 Applications

again.

•

Applications Using Low-Power DSPs,

All the devices of this family have a fixed-sense

Microcontrollers, or Microprocessors

divider.

•

Portable and Battery-Powered Equipment

•

Intelligent Instruments

The TPS3103 and TPS3106 devices have an active-

low,

open-drain

RESET

output

and

either

an

•

Wireless Communication Systems

integrated power-fail input (PFI) or SENSE input with

•

Industrial Equipment

corresponding outputs for monitoring other voltages.

•

Notebook and Desktop Computers

The TPS3110 has an active-low push/pull RESET

and a watchdog timer to monitor the operation of

Typical Application Schematic

microprocessors. All three devices have a manual

reset pin that can be used to force the outputs low

regardless of the sensed voltages.

The product spectrum is designed for supply voltages

of 0.9 V up to 3.3 V. The circuits are available in 6-pin

SOT-23

packages.

The

TPS31xx

family

is

characterized for operation over a temperature range

of –40°C to 85°C.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS3103xxx

TPS3106xxx

SOT-23 (6)

2.90 mm × 1.60 mm

TPS3110xxx

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

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.