Analog Devices ADP2291 Evaluation Board ADP2291RM-EVALZ ADP2291RM-EVALZ Ficha De Dados

Analog Devices

Códigos do produto

ADP2291RM-EVALZ

ADP2291

Rev. A | Page 2 of 20

TABLE OF CONTENTS

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

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

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

Typical Operating Circuit................................................................ 1

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 5

ESD Caution.................................................................................. 5

Pin Configurations and Function Descriptions ........................... 6

Typical Performance Characteristics ............................................. 7

Theory of Operation ...................................................................... 10

Precharge Mode .......................................................................... 10

End-of-Charge Mode................................................................. 10

Shutdown Mode.......................................................................... 10

Charge Restart............................................................................. 10

Programmable Timer................................................................. 10

Charge Status Indicator ............................................................. 10

Automatic Reverse Isolation ..................................................... 10

Overshoot Protection................................................................. 10

Power Supply Checks................................................................. 10

Thermal Shutdown .................................................................... 11

Application Information................................................................ 12

Setting the Maximum Charge Current.................................... 12

Setting the Maximum Charge Time ........................................ 12

External Capacitors.................................................................... 12

Reverse Input Protection........................................................... 12

External Pass Transistor ............................................................ 13

Typical Application Circuit....................................................... 14

Charge Termination................................................................... 14

Selectable Charge Current......................................................... 14

Thermal Protection.................................................................... 14

Printed Circuit Board Layout Considerations ....................... 16

LFSCP Layout Considerations.................................................. 16

Outline Dimensions ....................................................................... 17

Ordering Guide .......................................................................... 17

REVISION HISTORY

1

1/05—Rev. 0 to Rev. A

Changes to Equation 7 ................................................................... 13
Changes to Figure 26...................................................................... 15
Changes to Table 7.......................................................................... 16
Changes to Ordering Guide .......................................................... 17
Updated Outline Dimensions ....................................................... 17

10/04—Initial Version: Revision 0