[AP4203]

015008158-E-00

- 2 -

2015/09

3.

Table of Contents

1.

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

2.

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

3.

Table of Contents ........................................................................................................................................2

4.

Block Diagram and Functions.....................................................................................................................3

■ Block Diagram.............................................................................................................................................3

■ Function.......................................................................................................................................................3

5.

Ordering Guide ...........................................................................................................................................4

6.

Pin Configurations and Functions...............................................................................................................4

■ Pin Layout ...................................................................................................................................................4

■ Function.......................................................................................................................................................5

7.

Absolute Maximum Rating .........................................................................................................................9

8.

Recommended Operating Conditions .........................................................................................................9

9.

Electrical Characteristics ..........................................................................................................................10

■ SCI Interface (AC timing) .........................................................................................................................11

■ Serial F/F Control (AC timing) .................................................................................................................12

10.

Functional Descriptions.........................................................................................................................13

10.1.

Operation Outline...........................................................................................................................13

10.2.

SCI Interface Command .................................................................................................................13

10.3.

Serial F/F Cascade Control ............................................................................................................20

10.4.

LED Current Setting (fixed current output) ...................................................................................21

10.5.

Input Voltage Range (VIN)............................................................................................................22

10.6.

POR Operation (Power on Reset) ..................................................................................................22

10.7.

Reset State ......................................................................................................................................23

10.8.

Protection Functions ......................................................................................................................24

11.

Recommended External Circuits ...........................................................................................................25

12.

Package..................................................................................................................................................26

■ Package (48 pin LQFP) .............................................................................................................................26

■ Marking .....................................................................................................................................................26

13.

Revision History....................................................................................................................................27

IMPORTANT NOTICE ...................................................................................................................................28