規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Multi-Voltage Supervisor |
| NumberofVoltagesMonitored | 2 |
| Voltage-Threshold | 9 Selectable Threshold Combinations |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| ResetTimeout | 140ms Minimum |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | SOT-23-8 Thin, TSOT-23-8 |
概述
Description
LTC2905CTS8#TRPBF is an Analog Devices hot‑swap controller (MSOP‑8, CTS8 package; Pb‑free, Tape & Reel). It protects a live power rail when a board is plugged into a backplane by controlling an external N‑channel MOSFET to limit inrush and protect against faults.
Key features (typical): adjustable current limit via sense resistor, soft‑start to tame inrush, overvoltage/undervoltage protection, and a fault latch with a fault/status output.
Packaging: CTS8 denotes the MSOP-8 package with exposed pad; #TRPBF indicates Tape & Reel, Pb‑free.
Applications: server blades, telecom line cards, PCIe/other hot‑swap cards, and backplane power rails requiring robust insertion protection.
Operation: on insertion, LTC2905 ramps the FET gate to limit current; it monitors rail conditions and clamps current if the limit is exceeded or a fault occurs, asserting FAULT and protecting the system with minimal external parts (MOSFET, sense resistor, decoupling).
Key features (typical): adjustable current limit via sense resistor, soft‑start to tame inrush, overvoltage/undervoltage protection, and a fault latch with a fault/status output.
Packaging: CTS8 denotes the MSOP-8 package with exposed pad; #TRPBF indicates Tape & Reel, Pb‑free.
Applications: server blades, telecom line cards, PCIe/other hot‑swap cards, and backplane power rails requiring robust insertion protection.
Operation: on insertion, LTC2905 ramps the FET gate to limit current; it monitors rail conditions and clamps current if the limit is exceeded or a fault occurs, asserting FAULT and protecting the system with minimal external parts (MOSFET, sense resistor, decoupling).
Features
I don’t have the exact datasheet loaded, but LTC2905CTS8#TRPBF is an LTC/Linear part in an 8-pin package. Typical features you’d expect in this family include:
- Multi-channel monitoring (8 channels) with programmable thresholds
- I2C/SMBus compatible interface for config and reads
- Programmable fault/alert outputs with latch/reset options
- Low quiescent current and wide operating voltage range
- Pb-free, Tape & Reel (TRPBF) packaging
For precise, official specifications (pinout, voltage/current ranges, accuracy, delays, and register map), please consult the LTC2905 datasheet.
- Multi-channel monitoring (8 channels) with programmable thresholds
- I2C/SMBus compatible interface for config and reads
- Programmable fault/alert outputs with latch/reset options
- Low quiescent current and wide operating voltage range
- Pb-free, Tape & Reel (TRPBF) packaging
For precise, official specifications (pinout, voltage/current ranges, accuracy, delays, and register map), please consult the LTC2905 datasheet.
Pinout
- Pin count: 8 pins (MSOP-8 package, CTS8).
- Function: An I2C-enabled voltage monitor and reset generator. It monitors the supply voltage and provides a programmable reset output (with I2C configuration) for a microcontroller/system.
- Function: An I2C-enabled voltage monitor and reset generator. It monitors the supply voltage and provides a programmable reset output (with I2C configuration) for a microcontroller/system.
Manufacturer
- Manufacturer: Analog Devices, Inc. (ADI) — the company that now owns Linear Technology.
- What kind of company: A multinational American semiconductor company specializing in analog, mixed-signal, and DSP integrated circuits (including power management and data converters).
- What kind of company: A multinational American semiconductor company specializing in analog, mixed-signal, and DSP integrated circuits (including power management and data converters).
Application
Typical application areas for LTC2905CTS8#TRPBF:
- Hot‑swap protection and current limiting on high‑reliability power rails in servers, telecom equipment, data storage, and industrial control.
- Inrush suppression and soft‑start for boards inserted into backplanes.
- Overcurrent and overvoltage protection with fault handling for DC rails.
- Rail sequencing and voltage supervision in multi‑rail power architectures.
- Protection of backplanes and multi‑card systems during power‑up/down.
- Hot‑swap protection and current limiting on high‑reliability power rails in servers, telecom equipment, data storage, and industrial control.
- Inrush suppression and soft‑start for boards inserted into backplanes.
- Overcurrent and overvoltage protection with fault handling for DC rails.
- Rail sequencing and voltage supervision in multi‑rail power architectures.
- Protection of backplanes and multi‑card systems during power‑up/down.
Package
8‑pin MSOP (MSOP-8) package.
