LTC3230_15 Datasheet, PDF(8/16 Page) Linear Technology – 5-LED Main/Sub Display Driver with Dual LDO

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LTC3230_15 Datasheet, PDF (8/16 Pages) Linear Technology – 5-LED Main/Sub Display Driver with Dual LDO

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LTC3230

BLOCK DIAGRAM

VIN

18

900kHz

OSCILLATOR

20

C1P

17

C1M

19

C2P

16

C2M

GND

21

CPO

1

RSET

4

ENM

11

50ns FILTER

ENS

5

50ns FILTER

ENLDO2

3

ENLDO1

2

V1

13

V2

12

LDO1

VOUT

SELECT

LDO2

VOUT

SELECT

8

0.8V

TIMER

5-BIT

DOWN

COUNTER

ENABLE MAIN

5-BIT

LINEAR

DAC

TIMER

5-BIT

DOWN

COUNTER

TIMER

ENABLE SUB

5-BIT

LINEAR

DAC

SHUTDOWN

MLED

CURRENT

SOURCES

MLED1

7

MLED2

8

MLED3

9

MLED4

10

SLED

CURRENT

SOURCES

VIN

SLED

6

+

â

0.8V

+

â

LDO2

14

LDO1

15

GND

21

3230 BD

3230fa

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