ADN8831

Data Sheet

Rev. A | Page 2 of 20

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 2

Detailed Block Diagram .................................................................. 3

Specifications..................................................................................... 4

Electrical Characteristics............................................................. 4

Absolute Maximum Ratings............................................................ 6

Thermal Characteristics .............................................................. 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ............................................. 9

Theory of Operation ...................................................................... 11

Oscillator Clock Frequency....................................................... 12

Oscillator Clock Phase............................................................... 12

Temperature Lock Indicator ..................................................... 13

Soft Start on Power-Up.............................................................. 13

Shutdown Mode ......................................................................... 13

Standby Mode ............................................................................. 13

TEC Voltage/Current Monitor ................................................. 13

Maximum TEC Voltage Limit .................................................. 13

Maximum TEC Current Limit ................................................. 14

Applications Information .............................................................. 15

Signal Flow .................................................................................. 15

Thermistor Setup........................................................................ 15

Thermistor Amplifier (Chop1) ................................................ 15

PID Compensation Amplifier (Chop2) .................................. 16

MOSFET Driver Amplifier ....................................................... 17

Outline Dimensions....................................................................... 18

Ordering Guide .......................................................................... 18

REVISION HISTORY

8/12—Rev. 0 to Rev. A

Changes to Features and General Description Sections.............. 1

Moved Figure 2 ................................................................................. 3

Changes to Figure 2.......................................................................... 3

Changes to Table 1............................................................................ 4

Changes to Table 2 and Table 3....................................................... 6

Changes to Figure 3 and Table 4..................................................... 7

Changes to Theory of Operation Section and Figure 12........... 11

Changes to Figure 14 and Figure 15............................................. 11

Changes to Oscillator Clock Frequency Section and Oscillator

Clock Phase Section ....................................................................... 12

Changes to Soft Start on Power-Up Section, Shutdown Mode

Section, Standby Mode Section, and TEC Voltage/Current

Monitor Section .............................................................................. 13

Changes to Figure 17...................................................................... 15

Changes to PID Compensation Amplifier (Chop2) Section .... 16

Changes to MOSFET Driver Amplifier Section and Figure 21 ..17

Updated Outline Dimensions....................................................... 18

Changes to Ordering Guide .......................................................... 18

9/05—Revision 0: Initial Version