Datasheet LTM2883 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
| 页数 / 页 | 36 / 1 — FEATURES. DESCRIPTION. 2500VRMS for One Minute per UL1577. UL Recognized. … |
| 文件格式/大小 | PDF / 1.5 Mb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. 2500VRMS for One Minute per UL1577. UL Recognized. File #E151738. Isolated Adjustable DC Power:
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LTM2883 SPI/Digital or I2C µModule Isolator with Adjustable ±12.5V and 5V Regulated Power
FEATURES DESCRIPTION
n
2500VRMS for One Minute per UL1577
The LTM®2883 is a complete galvanic 6-channel digital
UL Recognized File #E151738
® µModule® (micromodule) isolator. No external components n
Isolated Adjustable DC Power:
are required. A single 3.3V or 5V supply powers both
3V to 5V at Up to 30mA
sides of the interface through an integrated, isolated DC/
±12.5V at Up to 20mA
DC converter. A logic supply pin allows easy interfacing n
No External Components Required
with different logic levels from 1.62V to 5.5V, independent n
SPI (LTM2883-S) or I2C (LTM2883-I) Options
of the main supply. n
High Common Mode Transient Immunity: 30kV/μs
Available options are compliant with SPI and I2C (master n
High Speed Operation:
mode only) specifications.
10MHz Digital Isolation 4MHz/8MHz SPI Isolation
The isolated side includes ±12.5V and 5V nominal power
400kHz I2C Isolation
supplies, each capable of providing more than 20mA of n 3.3V (LTM2883-3) or 5V (LTM2883-5) Operation load current. Each supply may be adjusted from its nominal n 1.62V to 5.5V Logic Supply value using a single external resistor. n ±10kV ESD HBM Across the Isolation Barrier Coupled inductors and an isolation power transformer n Maximum Continuous Working Voltage: 560VPEAK provide 2500VRMS of isolation between the input and out- n Low Current Shutdown Mode (<10µA) put logic interface. This device is ideal for systems where n Low Profile (15mm × 11.25mm × 3.42mm) the ground loop is broken, allowing for a large common BGA Package mode voltage range. Communication is uninterrupted for common mode transients greater than 30kV/μs.
APPLICATIONS
All registered trademarks and trademarks are the property of their respective owners. n Isolated SPI or I2C Interfaces n Industrial Systems n Test and Measurement Equipment n Breaking Ground Loops
TYPICAL APPLICATION Isolated 4MHz SPI Interface
LTM2883-5S VCC2
LTM2883 Operating Through 35kV/µs CM Transient
VCC 5V AT 20mA 5V AVCC2 SCK VL V+ 12.5V AT 20mA SD0 ON AV+ SCK2 = SD02 V– –12.5V AT 15mA 2V/DIV AV– 2V/DIV SDOE CS CS2 REPETITIVE CS CS TION BARRIER SDI SDI2 COMMON MODE SDI SDI TRANSIENTS SCK ISOLA SCK2 SCK SCK DO2 I2 SDO SDO2 SDO SDO 200V/DIV DO1 I1 20ns/DIV 2883 TA01b GND GND2 2883 TA01a 2883fd For more information www.linear.com/LTM2883 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Applications Information Package Description Typical Application Related Parts
FEATURES DESCRIPTION
n
2500VRMS for One Minute per UL1577
The LTM®2883 is a complete galvanic 6-channel digital
UL Recognized File #E151738
® µModule® (micromodule) isolator. No external components n
Isolated Adjustable DC Power:
are required. A single 3.3V or 5V supply powers both
3V to 5V at Up to 30mA
sides of the interface through an integrated, isolated DC/
±12.5V at Up to 20mA
DC converter. A logic supply pin allows easy interfacing n
No External Components Required
with different logic levels from 1.62V to 5.5V, independent n
SPI (LTM2883-S) or I2C (LTM2883-I) Options
of the main supply. n
High Common Mode Transient Immunity: 30kV/μs
Available options are compliant with SPI and I2C (master n
High Speed Operation:
mode only) specifications.
10MHz Digital Isolation 4MHz/8MHz SPI Isolation
The isolated side includes ±12.5V and 5V nominal power
400kHz I2C Isolation
supplies, each capable of providing more than 20mA of n 3.3V (LTM2883-3) or 5V (LTM2883-5) Operation load current. Each supply may be adjusted from its nominal n 1.62V to 5.5V Logic Supply value using a single external resistor. n ±10kV ESD HBM Across the Isolation Barrier Coupled inductors and an isolation power transformer n Maximum Continuous Working Voltage: 560VPEAK provide 2500VRMS of isolation between the input and out- n Low Current Shutdown Mode (<10µA) put logic interface. This device is ideal for systems where n Low Profile (15mm × 11.25mm × 3.42mm) the ground loop is broken, allowing for a large common BGA Package mode voltage range. Communication is uninterrupted for common mode transients greater than 30kV/μs.
APPLICATIONS
All registered trademarks and trademarks are the property of their respective owners. n Isolated SPI or I2C Interfaces n Industrial Systems n Test and Measurement Equipment n Breaking Ground Loops
TYPICAL APPLICATION Isolated 4MHz SPI Interface
LTM2883-5S VCC2
LTM2883 Operating Through 35kV/µs CM Transient
VCC 5V AT 20mA 5V AVCC2 SCK VL V+ 12.5V AT 20mA SD0 ON AV+ SCK2 = SD02 V– –12.5V AT 15mA 2V/DIV AV– 2V/DIV SDOE CS CS2 REPETITIVE CS CS TION BARRIER SDI SDI2 COMMON MODE SDI SDI TRANSIENTS SCK ISOLA SCK2 SCK SCK DO2 I2 SDO SDO2 SDO SDO 200V/DIV DO1 I1 20ns/DIV 2883 TA01b GND GND2 2883 TA01a 2883fd For more information www.linear.com/LTM2883 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Applications Information Package Description Typical Application Related Parts