AS3689 datasheet(29/72 Pages) AMSOSRAM

29 / 72 page

AS3689

austriami crosyst ems

Datasheet, Confidential

www.austriamicrosystems.com (mlg, ptr)

Revision 1.0.2 / 20070115

27 - 70

Table 12 – High Current Sinks CURR30,31,32,33 Parameters

Symbol

Parameter

Min

Typ

Max

Unit

Note

IBIT3

Current sink if Bit3 = 1

4.8

IBIT2

Current sink if Bit2 = 1

2.4

IBIT1

Current sink if Bit1 = 1

1.2

IBIT0

Current sink if Bit0 = 1

0.6

∆

absolute Accuracy

-15

+15

All Current sinks

VCURR3X

CURR30,31,32,33 Voltage

Compliance Range

0.2

CPOUT

7.4.2.1 Current Sinks CURR3x Registers

Addr: 12h

Curr3 control1

This register select the modes of the current sinks30..33 current.

Bit

Bit Name

Default

Access Description

preview_off_after

strobe

R/W

Select the switch off mode after strobe pulse

0=normal preview/strobe mode,

1=switch off preview after strobe duration has expired

2:1

preview_ctrl

00b

R/W

Preview is triggered by

00b = off

01b = software trigger (setting this bit automatically triggers preview)

10b = GPIO active high

11b = GPIO active low

R/W

reserved

curr3x_ext_ovtemp

R/W

Selects overtemperature switch off of flash LED

0b = normal operation of CURR3x

1b = if the voltage on GPIO drops below 1.25V, CURR3x is switched

from strobe to preview current levels

(can be used to monitor the temperature of the flash led)

AS3689 Datasheet(PDF) 29 Page - ams-OSRAM AG

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