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iC-NZN

N-TYPE LASER DIODE DRIVER

Rev B2, Page 1/17

FEATURES

o Peak value controlled laser diode driver for operation from CW

up to 155 MHz

o Spike-free switching of laser currents of up to 300 mA

o Setting of laser power (APC) via external resistor

o Optional current control (ACC)

o Laser current limitation

o LVDS/TTL switching input with TTL monitor output

o Low current consumption sleep-mode < 50 µA

o Safety shutdown with overtemperature

o Error signal output with overtemperature, undervoltage and

overcurrent

o All current LD types can be used (N/P/M configurations)

o Blue laser diodes supported

o Fast soft-start

o Strong suppression of transients with small external capacitors

APPLICATIONS

o Pulsed and CW laser diode

modules

o Laser diode pointers

o Laser levels

o Bar-code readers

o Distance measurement

o Blue laser diodes

PACKAGES

QFN24

4 mm x 4 mm

BLOCK DIAGRAM

+

&

VDD

EN

GND

CI

P

PMD

GND

RSI

MD

CLDA

LDA MONITOR

M

+3..+5.5V

0.68..

LDA

Low V(LDA)

NERR

LVDS/TTL

IMON

AVG

i(RSI)x540

RSI

100 nF..

CIS

suitable laser diode configurations

..300mA

NSLP

OverTemp.

SYN

+

AGND

-

OUTPUT MONITOR

CVDD

..300mA

1

ECI

RSI

LDK

RGND

N

CI

x240

VDD

INPUT INTERFACE

&

P

PMD

&

REF

&

N

RMD

Bandgap, Reference, Overtemp

1

EP

N

VDD

RVDD

VSY

OverCurrent

RMD

TTL

ECI

CI

T.PAD

N

9kΩ

REGE

-

M

CID

100 nF..

..10 nF..

iC-NZN

1

OUTPUT DRIVER

1

Copyright © 2012 iC-Haus

http://www.ichaus.com