AS3675 datasheet(35/81 Pages) AMSCO

35 / 81 page

www.austriamicrosystems.com/AS3675

1v3

34 - 80

AS3675

Datasheet - D e ta i l e d D e s c r i p t i o n

8.4.4

General Purpose Current Sinks CURR4x

These low voltage current sinks have a resolution of 8 bits and can sink up to 38.25mA.

General Purpose Current Sinks CURR4x Registers

Table 45. Rgb3 current

Addr: 0Dh

Rgb3 current

This register controls the RGB current sink current.

Bit

Bit Name

Default Access

Description

7:0

rgb3_current

0R/W

Defines current into Current sink RGB3

00h

0 mA

01h

0.15 mA

....

FFh

38.25 mA

Table 46. CURR4x Sinks Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

IBIT7

Current sink if Bit7 = 1

For V(CURRx) > 0.2V

19.2

IBIT6

Current sink if Bit6 = 1

9.6

IBIT5

Current sink if Bit5 = 1

4.8

IBIT4

Current sink if Bit4 = 1

2.4

IBIT3

Current sink if Bit3 = 1

1.2

IBIT2

Current sink if Bit2 = 1

0.6

IBIT1

Current sink if Bit1 = 1

0.3

IBIT0

Current sink if Bit0 = 1

0.15

Δm

matching Accuracy

CURR1,CURR2

-10

+10

absolute Accuracy

-15

+15

VCURR41,42,43x

Voltage compliance

0.2

CPO

Table 47. curr4 control

Addr: 04h

curr4 control

This register selects the mode of the current sinks CURR41, CURR42,

CURR43

Bit

Bit Name

Default Access

Description

1:0

curr41_mode

0R/W

Select the mode of the current sink CURR41

00b

off

01b

10b

PWM controlled

11b

LED pattern controlled

AS3675 датащи(PDF) 35 Page - ams AG

AS3675 датащи(HTML) 35 Page - ams AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81

датащи скачать

ссылки URL