TCA62735AFLG

TENTATIVE

This datasheet is tentative, the values and contents are subject to change without any notice.

2005-04-26 (Page 2 of 12)

Block Diagram

Explanation of Terminals

No

Symbol

Function

1

EN

Logic input terminal. (input a chip enable signal)

EN = ”H”

→ Operation mode, EN = ”L” → Shutdown mode

2

CTL0

3

CTL1

4

CTL2

Logic input terminal. (Selection of an output number)

Please refer to the truth table on page 10.

5

ISET

Resistance connection terminal for setting up output current.

6

VOUT

Output terminal.

7

VIN

Power supply terminal.

8

C1

+

9

C1

−

10

C2

−

11

C2

+

Capacitance connection terminal for charge pump.

12

GND

GND terminal.

13

ILED4

14

ILED3

15

ILED2

16

ILED1

Constant Sink Current Driver terminal.

ILED(mA) = 0.61V

ISET

Feed Back

GND

Constant Current

Regulator

ILED1

ILED 2

ILED 3

ILED 4

C1+

C1

−

VIN

VOUT

C2+

C2

−

Feed Back Circuit

Up Converting Time Change

CTL0

EN

CTL1

CTL2

Control

Logic

ON/OFF