TPS3128E18DBVR

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TPS3128E18DBVR

IC SUPERVISOR 1 CHANNEL SOT23-5

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  • Fr. Teil #TPS3128E18DBVR
  • Paket SOT-23-5
  • Datenblatt
  • Auf Lager5650

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Spezifikationen

Package Tape & Reel (TR),Bulk
ProductStatus Active
Type Simple Reset/Power-On Reset
NumberofVoltagesMonitored 1
Voltage-Threshold 1.71V
Output Open Drain or Open Collector
Reset Active Low
ResetTimeout 100ms Minimum
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case SC-74A, SOT-753

Übersicht

Description

The TPS3128E18DBVR is a TI fixed-threshold voltage supervisor (microprocessor reset circuit) for a 1.8 V rail. It monitors Vcc and asserts a reset output during power-up/power-down or when the 1.8 V supply droops, ensuring proper MCU/FPGA startup. It also provides a manual reset input for external forcing. The device comes in an 8-pin DBV package and features low quiescent current and operation over a wide temperature range (-40°C to 125°C). It’s used to improve system reliability in 1.8 V logic designs. For exact timing, threshold, and output behavior, consult the TPS3128E18DBVR datasheet.

Features

TPS3128E18DBVR is a 1.8-V fixed-threshold microprocessor supervisor. Key features:
- 1.8-V (E18) reset-threshold with built-in noise/hysteresis
- Power-on reset (POR) guarantees a valid reset at power-up
- Active-low push-pull reset output (directly drives MCU reset)
- Manual/reset input for external reset control
- Low quiescent current in normal operation
- Fast, deterministic reset release after Vcc stabilizes
- 8-pin DBV package (RoHS compliant)
For exact electrical specs, timing details, and temperature range, refer to the datasheet.

Package

TPS3128E18DBVR uses the DBV package, i.e., TI’s VSSOP-8 (8-pin small-outline) package, in a Tape & Reel (the R suffix).

Pinout

- Pin count: 6 pins (SOT-23-6 package, DBV)
- Function: Voltage supervisor/reset generator with 1.8 V threshold. It monitors the VDD rail and outputs an active-low reset signal to a microprocessor/controller, providing power-on/brown-out reset protection.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational semiconductor company that designs and manufactures analog and mixed-signal ICs and embedded processing products; a large publicly traded company (NYSE: TXN) and a leading supplier in the semiconductor industry.

Application

TPS3128E18DBVR is a 1.8V supply voltage supervisor/reset IC. Typical applications:
- Monitor 1.8V rails for microprocessors, microcontrollers, DSPs, FPGAs, and other digital ICs
- Provide deterministic power-on/brown-out reset
- System reset and health monitoring in embedded designs
- Widely used in automotive, industrial controls, consumer electronics, and portable/battery-powered equipment
It ensures proper reset during power-up/power-down and voltage dips.

Equivalent

TPS3128E18DBVR is TI’s 1.8 V reset supervisor (voltage monitor). Common equivalents (1.8 V fixed-threshold resets):
- TI: TPS3890-1.8, TPS3839-1.8
- Microchip: MCP1316-180, MCP1317-180
- Onsemi: NCP301-1.8
- Maxim: MAX809-1.8, MAX810-1.8
Note: check output type (latch/open-drain), delay, and package for exact cross-reference.

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