LTC4219IDHC-12

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LTC4219IDHC-12

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IC HOT SWAP CTRLR GP 16DFN

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Especificações

Atributo Valor
Package / Case Tube
Part Status Obsolete
Type Hot Swap Controller, Monitor
Number of Channels 1
Internal Switch(s) Yes
Applications General Purpose
Features Thermal Limit, UVLO
Programmable Features Current Limit, Fault Timeout
Voltage - Supply 2.9V ~ 15V
Current - Output (Max) 5.6A
Operating Temperature -40°C ~ 85°C
Supply Current 1.6 mA
Mounting Type Surface Mount

Visão Geral

Description

Introduction to LTC4219IDHC-12:
- It’s a Linear Technology (now Analog Devices) hot‑swap controller. It protects and safely powers a live rail by controlling an external MOSFET.
- Key functions: programmable current limit via a sense resistor, soft‑start to limit inrush, undervoltage/overvoltage protection, overcurrent/short‑circuit protection, and fault/OK signaling.
- How it’s used: mounted on a board that plugs into a live backplane; it senses the rail, controls the MOSFET gate to limit inrush and disconnect on faults.
- Package/variant note: LTC4219IDHC-12 denotes a specific package and temperature grade; refer to the datasheet for exact pinout, dimensions, and thermal specs.
- Typical applications: hot‑swap protection for servers, telecom, storage, and other industrial power rails.
- For precise electrical specs, timing, and packaging details, consult the LTC4219IDHC-12 datasheet on Analog Devices’ website.

Equivalent

Direct one-to-one equivalents for LTC4219IDHC-12 don’t exist. It’s a hot-swap controller with overcurrent protection; similar parts are available from TI (TPS family), On Semiconductor (NCP series), and Analog Devices (hot-swap controllers) with comparable voltage/current ranges. For a precise cross-reference I need your target input range, max current, protection features (OC limit, UVLO, foldback), and package. Share those and I’ll suggest exact equivalent parts.

Features

LTC4219IDHC-12 features (highlights):
- High-side hot-swap controller with current limiting to protect rails during plug-in.
- Adjustable/programmable current limit via external sense resistor.
- Soft-start/inrush control to minimize surge on connection.
- Overcurrent protection with fault latch (protects against shorts).
- Overvoltage and undervoltage lockout for rail protection.
- Thermal shutdown with latch to prevent overheating.
- Reverse-current protection to avoid backfeeding the supply.
- Open-load detection with a fault/status output for MCU monitoring.
- Enable input to enable/disable operation.
- Fault/status pin (often open-drain) for microcontroller interfacing.
- Die/packaged in the IDHC 12-lead package (compact footprint for onboard use).
This summarizes the key protections and control features typical of the LTC4219IDHC-12 hot-swap controller.

Pinout

- Pin count: 16 pins (LTC4219IDHC package).
- Function: High-side hot-swap/power-path controller. It drives an external N-channel MOSFET to protect a supply rail, providing current limiting, over/undervoltage protection, reverse-current protection, and fault signaling for a single power path (12V systems typical).

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI).
Kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing ICs (including power management). Analog Devices acquired Linear Technology in 2017, and continues to market LTC-brand parts.

Application

LTC4219IDHC-12 is a hot‑swap/current‑limit protection controller for DC power rails. Typical application areas include:
- Hot‑swap protection and current limiting for server, PSU, and front‑end power supplies
- High‑side protection in telecom/networking equipment and data‑center gear
- PoE PD front ends and Ethernet powered devices
- Industrial equipment and automated test/measurement power paths
- Battery‑backup/redundant power‑path switching in mission‑critical systems
It is used where safe power‑path control, overcurrent protection, and fault isolation are required.

Package

LTC4219IDHC-12 uses a 12‑lead MSOP (MSOP-12) package, RoHS-compliant.

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