AS3688 datasheet(27/72 Pages) AMSOSRAM

27 / 72 page

AS3688

austriami crosyst ems

Datasheet, Confidential

www.austriamicrosystems.com (ptr,tje)

Revision 1.1.1 / 20060707

25 - 70

Table

12 – HV - Current Sinks Characteristics

Symbol

Parameter

Min

Typ

Max

Unit

Note

IBIT7

Current sink if Bit7 = 1

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

For V(CURRx) > 0.45V

∆m

matching Accuracy

-8

CURR1,CURR2; full scale

∆

absolute Accuracy

-15

+15

Curr1 –

Curr2

Voltage compliance

0.45

Ov_prot_

13V

Overvoltage Protection of

current sink CURR1,2

3.0

µA

At 13V, independent of

curr1_prot_on or curr2_prot_on

Ov_prot_

15V

Overvoltage Protection of

current sink CURR1,2

0.8

4.0

At 15V, step_up_on=1,

curr1_prot_on=1 for CURR1,

curr2_prot_on=1 for CURR2

7.4.1.1 High Voltage Current Sinks CURR1, CURR2 Registers

Curr1 current

Addr: 09h

This register controls the High voltage current sink current.

Bit

Bit Name

Default

Access

Description

7:0

curr1_current

R/W

Defines current into Current sink curr1

00h = 0 mA

01h = 0.15 mA

...

FFh = 38.25 mA

Curr2 current

Addr: 0Ah

This register controls the High voltage current sink current.

Bit

Bit Name

Default

Access

Description

7:0

curr2_current

R/W

Defines current into Current sink curr1

00h = 0 mA

01h = 0.15 mA

...

FFh = 38.25 mA

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