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IC-NX Datasheet, PDF (1/10 Pages) IC-Haus GmbH – 8-CHANNEL LIGHT-GRID PULSE DRIVER
iC-NX
8-CHANNEL LIGHT-GRID PULSE DRIVER
FEATURES
o 1 to 8 channels (hardware programmable)
o LED pulse current can be adjusted from 0.4 to 1.8 A via a
single external low power resistor
o Positive pulse current temperature coefficient permits
compensation of decreases in LED efficiency
o Short light pulses from 0.5 µs with steep edges
o Low standby current; device activated by input data
o Diagnostic message generated with LED interrupts
o LED short-circuit recognition
o Control logic with three-stage shift register
o Output buffer with 120 Ω line adaptation
o Supply voltage range of 4.75 to 6 V
o Thermal and low-voltage shutdown
o Integrated protection against ESD
o Configured for safety systems according to IEC 1496-1
o Optional extended temperature range of -20 to 85 °C
Rev C1, Page 1/10
APPLICATIONS
o Protective equipment (ESPE)
o Light curtain LED driver
o Light barrier LED driver
PACKAGES
TSSOP16
BLOCK DIAGRAM
+4.75..6V
C1
PROG
DIN
CONTROL INPUT
CLK
CONTROL INPUT
VDD
LED1
S1
4kΩ
Vref
SEND1
ILED
NENABLE
BYPEN
Sdis1
LEDON1
CHAN1
LOGIC
REG2
QD
REG1
QD
&
C
C
NQ
1
R NR NR NR
1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
CONTROL INPUT
SHEN
2.5k Ω
DIAG
DI1
FF1
DQ
Q1
C
FF2
DQ
C
Q2
&
NR
NR
1
FF3
Q3
DQ
0
NC
DO1
NR
CLK
NRES
SHEN
&&
x1200
IOK
A
VDD
A
LED CURRENT SINK
BANDGAP
iC−NX
POWER DOWN
RESET
TERMAL
SHUTDOWN
DO8
OUTPUT BUFFER
DOUT
GND
ISET
RSET
Copyright © 2005 iC-Haus
http://www.ichaus.com