![](/html/07/07c8/07c80dfcf9875328ebc2a72d78c4a866a5d548b9602a463d161657e936476bbc/bg1.png)
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
8-Channel, Current-Source Output,
Darlington T ransistor Array
Monolithic Digital IC
Ordering number:EN3173B
LB1740
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.
Features
• Eight independent Darlington driver circuits.
• High breakdown voltage (50V), high current source
output (500mA).
• With output clamp diodes.
Specifications
Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusmumixaMV
egatlovylppustuptuOV
egatlovylppustupnIV
tnerructuptuomumixuMI
tnerrucdrawrofedoidpmalCI
egatlovesreveredoidpmalCV
noitapissidrewopelbawollAxamdP 31.1W
erutarepmetgnitarepOrpoT 57+ot02–
erurtarepmetegarotSgtsT 051+ot04–
Allowable Operating Conditions at Ta = 25˚C
xam 05+ot3.0–V
CC
TUO
NI
TUO
F
R
Package Dimensions
unit:mm
3007A-DIP18
[LB1740]
lennahcreP 005–Am
SANYO:DIP18
Vot3.0–
V
CC
03+ot3.0–V
005–Am
05+ot3.0–V
˚C
˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppuSV
egatlovlevel-NOtuonIV
egatlovlevel-FFOtuonIV
Electrical Characteristics at Ta = 25˚C, V
retemaraPlobmySsnoitidnoC
tnerrucylppuS
egatlovtuptuO
tnerructupnI
egatlovdrawrofedoidpmalC
egatlovesreveredoidpmalC
emityalednoitagaporpdeteR
CC
I
NOI
FFOI
ICCHV:stupnillA
ICCLnepO:stupnillA 001Aµ
VHO1VNII,V8.1=
VHO2V
VNI1VNIV5=4.057.0Am
VNI2VNIV52=6.27.4Am
V
F
V
R
thp102sn
CC
I
=50V
NI
I
F
I
R
TUO
TUO
Am053–=03ot8.1V
≥ Aµ05–3.0+ot3.0–V
nimpytxam
V5=6.501Am
NI
Am001–=V
TUO
Am053–=TUOI,V8.1=V
Am053–=4.2–2.1–V
Aµ001=05V
43098HA (KT)/N2195YK/N149TA, TS No.3173-1/2
0.2–VCC54.1–V
CC
4.2–VCC6.1–V
CC
05ot4V
sgnitaR
tinU
![](/html/07/07c8/07c80dfcf9875328ebc2a72d78c4a866a5d548b9602a463d161657e936476bbc/bg2.png)
T a=25˚C, VCC=12V
LB1740
emityaledgnihctiwS
Pin Assignment
retemaraPlobmySsnoitidnoC
t
d
Figure 1
sgnitaR
nimpytxam
1erugiFeeS,tiucricecnerefeR3.7Aµ
tinU
Equivalent Circuit (1 channel)
No products described or contained herein are intended for use in surgical implants, life-support systems,
aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and
the like, the failure of which may directly or indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates,
subsidiaries and distributors and all their officers and employees, jointly and severally, against any
and all claims and litigation and all damages, cost and expenses associated with such use:
Not impose any responsibilty for any fault or negligence which may be cited in any such claim or
litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of
their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees
are made or implied regarding its use or any infringements of intellectual property rights or other rights of
third parties.
This catalog provides information as of April, 1998. Specifications and information herein are subject to
change without notice.
PS No.3173-2/2