NZQFN28 datasheet(18/20 Pages) ROITHNER

No. de pieza	NZQFN28

Descripción Electrónicos	FAIL-SAFE LASER DIODE DRIVER

PDF	20 Pages

Scroll/Zoom	100%

Fabricante Electrónico	ROITHNER [Roithner LaserTechnik GmbH]

Página de inicio	http://www.roithner-laser.com

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18 / 20 page

iC-NZ

FAIL-SAFE LASER DIODE DRIVER

Rev B2, Page 18/20

ing RLDA. iC-HK is a fast, spike-free laser switch with

which up to 1.4 A can be driven in pulsed operation.

An iC-HK can be connected to each channel on iC-NZ

so that a maximum laser pulse current of 4.2 A can

be achieved (depending on pulse frequency, duty cy-

cle and thermal dissipation). To this end pins CIx (x:

L, M, H) on iC-NZ must be connected to the CI inputs

of the relevant iC-HK and iC-NZ inputs LENx to iC-HK

inputs EN1 and EN2 (Figure 16). Individual levels are

set as described above in Switching up to three laser

power levels.

LENM

LENH

CLDA

RSMD

RML

Monitor

Safety

Diode

RVDD

SDIS

SMD

VDD

RGND

LDA

GND

CREF

CIL

CIM

LDKL

CIH

LDKH

CIH

RSI

REGEN

LENH

LENL

LENM

RMDH

AGND

CIL

MDL

RMH

RMDM

RMM

RLDA

CIM

iC−NZ

LDK

AGND2

AGND1

GND

VDD

EN2

EN1

iC−HK

LDKM

LDK

AGND2

AGND1

GND

VDD

EN2

EN1

iC−HK

LDK

AGND2

AGND1

GND

VDD

EN2

EN1

iC−HK

VDD

LENL

LENM

LENH

LENL

Figure 16: Extending the laser current

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