IC-NT Datasheet, PDF (1/8 Pages) IC-Haus GmbH – LIGHT CHAIN PULSE DRIVER

iC-NT
LIGHT CHAIN PULSE DRIVER
FEATURES
♦ Adjustable LED pulse operation, set range of 0.4..1A
♦ Controlled current slew rate enables short light pulses
down to 1µs
♦ LED efficiency degradation compensated by positive current
temperature coefficient
♦ Low standby current; circuit activation by input data
♦ Low power requirement for external set resistor
♦ Control logic with 3-step shift register
♦ Compatible to CMOS levels
♦ Data output buffer with built-in 120Ω wave impedance
adaption
♦ Single 5V supply
♦ Thermal shutdown and power-down reset
♦ ESD protection
♦ Small outline package SO8
♦ Suited for high-risk applications according to IEC 1496-1
◊ Option: Extended temperature range of -20°C..85°C
APPLICATIONS
♦ Electro-sensitive protective
equipment (ESPE)
♦ Light curtain LED driver
♦ Light barrier LED driver
PACKAGES
SO8
BLOCK DIAGRAM
+5V
2
VDD
1 _DIN
CONTROL INPUTS
iC-NT
LOGIC
OUTPUT BUFFER
DOUT ⁶
6µA
3 _CLK
6µA
4 _SHEN
6µA
PDR TR
POWER DOWN
RESET
GND
7
FF1
Q1
DQ
C
R
FF2
Q2
DQ
&
C
R
FF3
Q3
DQ
C
R
LED CURRENT SINK
VDD
+5V
S Dis
LED ⁸
SEND
1
1
ENABLE
REFERENCE AND
THERMAL SHUTDOWN
VTREF
+
-
VDD
A
1:1200
50Ω
ISET ⁵
RSET
1.8kΩ
©1997
iC-Haus GmbH
Integrierte Schaltkreise
Am Kuemmerling 18, 55294 Bodenheim
Rev A0
Tel [phone]
Fax [phone]
http://www.ichaus.com