LTC4222集成電路（IC）的熱插拔控制器規(guī)格書PDF中文資料

LTC4222屬于集成電路（IC）的熱插拔控制器。由亞德諾半導體技術有限公司制造生產的LTC4222熱插拔控制器PMIC - 熱插拔控制器是能提供電路內保護和控制功能的半導體，可允許帶電情況下在電路中插入或拔除其他組件。熱插拔控制器可用于計算機網絡和通用電源系統(tǒng)，主要根據(jù)輸出電流、受控通道數(shù)量等特性，以及自動重試、故障超時和保護等特殊功能進行區(qū)分。

FEATURES

Rail-to-Rail Input Range: 0V to 80V

Wide Input Supply Range: 2.7V to 80V

Shunt Regulator for Supplies >80V

ΔΣ ADC with less than ±0.75% Total Unadjusted Error

12-Bit Resolution for Current and Voltages

Internal Multiplier Calculates 24-Bit Power Value

Stores Minimum and Maximum Values

Alerts When Limits Exceeded

Additional ADC Input Monitors an External Voltage

Continuous Scan and Snapshot Modes

Shutdown Mode with IQ < 80μA

Split SDA for Opto-Isolation

Available in 12-Lead 3mm × 3mm QFN and

MSOP Packages

AEC-Q100 Qualified for Automotive Applications

APPLICATIONS

Telecom Infrastructure

Industrial

Automotive

Consumer

DESCRIPTION

The LTC?2945 is a rail-to-rail system monitor that measures

current, voltage, and power. It features an operating

range of 2.7V to 80V and includes a shunt regulator for

supplies above 80V to allow flexibility in the selection

of input supply. The current measurement range of 0V

to 80V is independent of the input supply. An onboard

0.75% accurate 12-bit ADC measures load current, input

voltage and an auxiliary external voltage. A 24-bit power

value is generated by digitally multiplying the measured

12-bit load current and input voltage data. Minimum and

maximum values are stored and an overrange alert with

programmable thresholds minimizes the need for software

polling. Data is reported via a standard I2C interface.

Shutdown mode reduces power consumption to 20μA.

The LTC2945 I2C interface includes separate data input

and output pins for use with standard or opto-isolated I2C

connections. The LTC2945-1 has an inverted data output

for use with inverting opto-isolator configurations.