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TPS2482

現行

具數位電源監測和閉鎖功能的 9-V 至 80-V 熱插拔控制器

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產品規格表

TPS2482

現行
產品規格表 立即訂購

產品詳細資料

FET External Vin (min) (V) 9 Vin (max) (V) 80 Vabsmax_cont (V) 40 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Power limiting, current limiting Soft start Adjustable Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Power good signal, Short circuit protection
FET External Vin (min) (V) 9 Vin (max) (V) 80 Vabsmax_cont (V) 40 Current limit (min) (A) 0.01 Current limit (max) (A) 500 Overcurrent response Power limiting, current limiting Soft start Adjustable Rating Catalog Device type eFuses and hot swap controllers Operating temperature range (°C) -40 to 125 Function Adjustable current limit, Current monitoring, Inrush current control, Power good signal, Short circuit protection
TSSOP (PW) 20 41.6 mm² 6.5 x 6.4
  • 9-V to 36-V Input Range, 40 V Abs. Max
  • Current, Voltage and Power Monitor
  • ±0.5% Accurate Current Monitoring
    (225°C < TJ < 85°C)
  • 16 Programmable I2C Addresses
  • Configurable Averaging Options
  • Programmable MOSFET SOA protection
  • High Side Gate Drive for External N-FET
  • Programmable Fault Timer
  • Open-Drain Power-Good Output
  • 20-Pin TSSOP Package
  • 9-V to 36-V Input Range, 40 V Abs. Max
  • Current, Voltage and Power Monitor
  • ±0.5% Accurate Current Monitoring
    (225°C < TJ < 85°C)
  • 16 Programmable I2C Addresses
  • Configurable Averaging Options
  • Programmable MOSFET SOA protection
  • High Side Gate Drive for External N-FET
  • Programmable Fault Timer
  • Open-Drain Power-Good Output
  • 20-Pin TSSOP Package

The TPS2482 and TPS2483 provide hotswap control and precision monitoring for 9-V to 36-V applications. Accurate voltage, current, and power monitoring is provided by a 16-bit A/D converter with a serial interface that is compatible with I2C and SMBus. Voltage and current measurements are interleaved and multiplied internally to provide concurrent power calculations. These devices have high current monitoring accuracy over temperature and a broad load range. This makes them well suited for applications where load identity and health is determined by current profile, such as remote radio heads or cellular antennae.

The hotswap section drives N-channel MOSFETs, with timed inrush and fault-current limiting. Advanced MOSFET safe operating area (SOA) protection is achieved by programmable constant-power foldback and a fixed current limit. This results in an exponential inrush current profile as shown in the start-up figure below. As VOUT ramps up and the VDS of the MOSFET is reduced the current increases keeping MOSFET power dissipation within its SOA at all times. The TPS2482 latches off after a hard fault, while the TPS2483 automatically attempts to restart after a cool-off delay.

The TPS2482 and TPS2483 can be dropped into existing TPS2480 and TPS2481 sockets to provide improved accuracy and operating voltage range. This can be accomplished with no PCB changes and minor software modifications.

While the standard monitoring function is limited to 36 V, with a few external components it is possible to monitor buses as high as 80 V. See special application description in High Voltage Application Example.

The TPS2482 and TPS2483 provide hotswap control and precision monitoring for 9-V to 36-V applications. Accurate voltage, current, and power monitoring is provided by a 16-bit A/D converter with a serial interface that is compatible with I2C and SMBus. Voltage and current measurements are interleaved and multiplied internally to provide concurrent power calculations. These devices have high current monitoring accuracy over temperature and a broad load range. This makes them well suited for applications where load identity and health is determined by current profile, such as remote radio heads or cellular antennae.

The hotswap section drives N-channel MOSFETs, with timed inrush and fault-current limiting. Advanced MOSFET safe operating area (SOA) protection is achieved by programmable constant-power foldback and a fixed current limit. This results in an exponential inrush current profile as shown in the start-up figure below. As VOUT ramps up and the VDS of the MOSFET is reduced the current increases keeping MOSFET power dissipation within its SOA at all times. The TPS2482 latches off after a hard fault, while the TPS2483 automatically attempts to restart after a cool-off delay.

The TPS2482 and TPS2483 can be dropped into existing TPS2480 and TPS2481 sockets to provide improved accuracy and operating voltage range. This can be accomplished with no PCB changes and minor software modifications.

While the standard monitoring function is limited to 36 V, with a few external components it is possible to monitor buses as high as 80 V. See special application description in High Voltage Application Example.
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類型 標題 日期
* Data sheet 36V Hotswap Controller with Digital Power Monitoring datasheet (Rev. A) 2013年 3月 15日
Selection guide Hot Swap Selection Tool 2015年 7月 28日
EVM User's guide EVM User Guide for TPS2482 and TPS2483 2012年 11月 20日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS2483EVM-157 — TPS2483 評估模組

The Texas Instruments TPS2483EVM-157 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS2483 power-over-Ethernet powered device and DC/DC controller. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.

使用指南: PDF
TI.com 無法提供
開發模組 (EVM) 的 GUI

SLVC454 — TPS2482 and TPS2483 EVM GUI

支援產品和硬體

支援產品和硬體

產品
eFuses 和熱插拔制器
TPS2482 — 具數位電源監測和閉鎖功能的 9-V 至 80-V 熱插拔控制器 TPS2483 — 具數位電源監測和自動重試的 9-V 至 80-V 熱插拔控制器
下載
計算工具

TPS2480-81-90-91-92-93_CALC — TPS249x8x Design Calculator Rev B

Simply enter the input voltage, the output current, the output capacitance, and other application specifications into this spreadsheet calculator and the values of the required external components for TPS2480, TPS2481, TPS2490, TPS2491, TPS2492 or TPS2493, such as the sense resistance, the Timer (...)
支援產品和硬體

支援產品和硬體

產品
eFuses 和熱插拔制器
TPS2480 — 具 I2C 電流監控器和閉鎖功能的 9-V 至 80-V 熱插拔控制器 TPS2481 — 具 I2C 電流監控器自動重試的 9-V 至 80-V 熱插拔控制器 TPS2482 — 具數位電源監測和閉鎖功能的 9-V 至 80-V 熱插拔控制器 TPS2483 — 具數位電源監測和自動重試的 9-V 至 80-V 熱插拔控制器 TPS2490 — 具有功率限制和閉鎖功能的 9-V 至 80-V 熱插拔控制器 TPS2491 — 具有功率限制和自動重試的 9-V 至 80-V 熱插拔控制器 TPS2492 — 具功率限制、閉鎖功能及類比電流監控的 9-V 至 80-V 熱插拔控制器 TPS2493 — 具功率限制、自動重試功能及類比電流監控的 9-V 至 80-V 熱插拔控制器
硬體開發
開發板
TPS2483EVM-157 — TPS2483 評估模組
軟體
計算工具
TPS2480-81-90-91-92-93_CALC — 免費工具：TPS2480/81/90/91/92/93 設計導入計算機
下載
計算工具

TPS2482-3_CALC — TPS2482/TPS2483 Monitoring Accuracy Calculator

The TPS2482-3_CALC can be used to calculate the reporting accuracy of the TPS2482 and TPS2483 hot swap controller with digital power monitoring under user specified circuit conditions.

支援產品和硬體

支援產品和硬體

產品
eFuses 和熱插拔制器
TPS2482 — 具數位電源監測和閉鎖功能的 9-V 至 80-V 熱插拔控制器 TPS2483 — 具數位電源監測和自動重試的 9-V 至 80-V 熱插拔控制器
硬體開發
開發板
TPS2483EVM-157 — TPS2483 評估模組
下載
計算工具

TVS-RECOMMENDATION-CALC — TVS diode recommendation tool

This tool suggests suitable TVS for given system parameters and abs max voltage rating of the device.
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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