Datasheet

AD5751 Data Sheet
Rev. B | Page 2 of 32
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Functional Block Diagram .............................................................. 3
Specifications ..................................................................................... 4
Timing Characteristics ................................................................ 7
Absolute Maximum Ratings ............................................................ 9
ESD Caution .................................................................................. 9
Pin Configuration and Function Descriptions ........................... 10
Typical Performance Characteristics ........................................... 12
Current Output ........................................................................... 15
Terminology .................................................................................... 20
Theory of Operation ...................................................................... 21
Software Mode ............................................................................ 21
Currrent Output Architecture .................................................. 23
Driving Inductive Loads ............................................................ 23
Power-On State of the AD5751 ................................................ 23
Default Registers at Power-On ................................................. 24
Reset Function ............................................................................ 24
OUTEN ........................................................................................ 24
Software Control ........................................................................ 24
Hardware Control ...................................................................... 26
Transfer Function ....................................................................... 26
Detailed Description of Features .................................................. 27
Output Fault Alert—Software Mode ....................................... 27
Output Fault Alert—Hardware Mode ..................................... 27
Voltage Output Short-Circuit Protection ................................ 27
Asynchronous Clear (CLEAR) ................................................. 27
External Current Setting Resistor ............................................ 27
Programmable Overrange Modes ............................................ 28
Packet Error Checking ............................................................... 28
Applications Information .............................................................. 29
Transient Voltage Protection .................................................... 29
Thermal Considerations ............................................................ 29
Layout Guidelines....................................................................... 30
Galvanically Isolated Interface ................................................. 30
Microprocessor Interfacing ....................................................... 30
Outline Dimensions ....................................................................... 31
Ordering Guide .......................................................................... 31
REVISION HISTORY
10/13—Rev. A to Rev. B
Changed Thermal Impedance from 28°C/W to 42°C/W
(Throughout) .................................................................................... 9
Added Endnote 1 to Table 4 ............................................................ 9
Changes to Table 12 Calculations ................................................. 29
Updated Outline Dimensions ....................................................... 31
5/10—Rev. 0 to Rev. A
Changes to Table 2, Power Requirements ..................................... 6
10/09—Revision 0: Initial Version