Ordering number:EN3173B
Monolithic Digital IC
LB1740
8-Channel, Current-Source Output,
Darlington Transistor Array
Overview
The LB1740 is an 8-channel current source output
Darlington transistor array made up of PNP transistors
and NPN transisitors.High output drive capability for
very low input current is achieved.
Package Dimensions
unit:mm
3007A-DIP18
[LB1740]
Features
鈥?Eight independent Darlington driver circuits.
鈥?High breakdown voltage (50V), high current source
output (500mA).
鈥?With output clamp diodes.
SANYO:DIP18
Specifications
Maximum Ratings
at Ta = 25藲C
Parameter
Maximum supply voltage
Output supply voltage
Input supply voltage
Muximum output current
Clamp diode forward current
Clamp diode reverse voltage
Allowable power dissipation
Operating temperature
Storage temperatrure
Symbol
VCCmax
VOUT
VIN
I OUT
IF
VR
Pd max
Topr
Tstg
Per channel
Conditions
Ratings
鈥?.3 to +50
鈥?.3 to VCC
鈥?.3 to +30
鈥?00
鈥?00
鈥?.3 to +50
1.13
鈥?0 to +75
鈥?0 to +150
Unit
V
V
V
mA
mA
V
W
藲C
藲C
Allowable Operating Conditions
at Ta = 25藲C
Parameter
Supply voltage
Inout ON-level voltage
Inout OFF-level voltage
Symbol
V CC
VION
VIOFF
IOUT =鈥?50mA
IOUT
鈮?/div>
鈥?0碌A(chǔ)
Conditions
Ratings
4 to 50
1.8 to 30
鈥?.3 to +0.3
Unit
V
V
V
Electrical Characteristics
at Ta = 25藲C, VCC =50V
Parameter
Supply current
Output voltage
Input current
Clamp diode forward voltage
Clamp diode reverse voltage
Reted propagation delay time
Symbol
ICCH
ICCL
VOH1
VOH2
VIN1
VIN2
VF
VR
tph1
Conditions
All inputs:VIN=5V
All inputs:Open
VIN=1.8V, IOUT=鈥?00mA
VIN=1.8V, IOUT=鈥?50mA
VIN=5V
VIN=25V
IF=鈥?50mA
IR=100碌A(chǔ)
鈥?.4
50
20
VCC鈥?.0
VCC鈥?.4
VCC鈥?.45
VCC鈥?.6
0.4
2.6
鈥?.2
0.75
4.7
Ratings
min
typ
5.6
max
10
100
Unit
mA
碌A(chǔ)
V
V
mA
mA
V
V
ns
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
43098HA (KT)/N2195YK/N149TA, TS No.3173-1/2
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