Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Relay driver IC default output

Status
Not open for further replies.

seyyah

Advanced Member level 2
Advanced Member level 2
Joined
Oct 7, 2001
Messages
646
Helped
8
Reputation
16
Reaction score
8
Trophy points
1,298
Activity points
6,233
relay driver ic

Are there any ICs for driving relays? (Especially multiple relays)
 

7rots51

Advanced Member level 4
Advanced Member level 4
Joined
May 17, 2002
Messages
1,183
Helped
25
Reputation
50
Reaction score
12
Trophy points
1,318
Activity points
9,635
relay driver

You can use ULN2003 or ULN2803
:wink:
 

johnyaya

Full Member level 2
Full Member level 2
Joined
May 30, 2001
Messages
125
Helped
17
Reputation
34
Reaction score
0
Trophy points
1,296
Location
YoyoDyne
Activity points
1,106
uln2003 relay driver

IPS511 (high side) or IPS021 (low side) for larger relays
 

swilly

Member level 2
Member level 2
Joined
Oct 9, 2001
Messages
44
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Location
Argentina
Activity points
358
relay driver uln2003

There are a lot...
Try searching in www.ti.com (Texas Instruments site). They have free samples.
 

al_extreme

Member level 4
Member level 4
Joined
Feb 7, 2002
Messages
75
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
557
i2c relay driver

use open collector buffer like 74ls07 or 74ls06 i'm not sure
 

Sobakava

Full Member level 6
Full Member level 6
Joined
Mar 27, 2002
Messages
350
Helped
8
Reputation
16
Reaction score
8
Trophy points
1,298
Activity points
3,342
relay driver circuits

UDN2580 is a good choice. Eight channel, 120mA source drivers.

Allegro has also 32 channel driver ICs with serial port!!! You
can control 32 relays by using just 4-5 TTL signals from your
microprocessors. Check UDN5833 or UDN5832 but I don't
think you can find these chips on K.köy. Try Farnell :wink:
 

unctarheels1

Newbie level 6
Newbie level 6
Joined
May 18, 2001
Messages
14
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
23
relay driver ics

Try the DP8311 , open collector
 

sapdo

Newbie level 4
Newbie level 4
Joined
May 25, 2008
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,305
relay ic

I need relay driver schematics using ULN2003
please help me
Its Urgent
 

sau_sol

Full Member level 5
Full Member level 5
Joined
Feb 27, 2008
Messages
257
Helped
41
Reputation
82
Reaction score
11
Trophy points
1,298
Location
India
Activity points
2,509
open collector relay driver

the circuit is as follows
 

zia.roghani

Member level 1
Member level 1
Joined
Sep 13, 2006
Messages
37
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
1,515
drive relay ic

ULN2003 are god.
i have used it for driving relays...
 

mfarooq1

Full Member level 2
Full Member level 2
Joined
Jan 9, 2009
Messages
126
Helped
10
Reputation
20
Reaction score
6
Trophy points
1,298
Location
Pakistan
Activity points
1,852
relay coil driver ic

Hi
ULNs are best they are for relays having built in diode for reverse voltage protection. but there is limitation in the VCC voltage. if used with higher VCC voltages then it will heat up. so check for the proper IC

Added after 1 minutes:

From VCC i mean the power you will connect to relay. for smaller currents some times they work with no problems.
 

onrkya

Newbie level 4
Newbie level 4
Joined
Mar 9, 2008
Messages
5
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,321
12 relay driver circuits

Hello,

I need to drive 32 NEC EA2 relays on my pcb but I want to use minimum number of driver ICs.
I was thinking about driving 4 relays from 1 output of ULN 2803 but from the datasheet I couldnt find out whether its possible or not..Besides I dont have any samples so I cant make any experiments.
Do you have suggestions for such a driver IC? Only requirement is to operate between -40 C to 85 C.

I need a response as soon as possible.
Thank you.
 

newbie_hobbyist

Newbie level 1
Newbie level 1
Joined
Mar 29, 2008
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,285
Re: 12 relay driver circuits

If you have a microcontroller or some kind of digital interface available, you can use TPL9202 made by TI. It can drive 8 relays with some fault protection as well (brown out condition)


Hello,

I need to drive 32 NEC EA2 relays on my pcb but I want to use minimum number of driver ICs.
I was thinking about driving 4 relays from 1 output of ULN 2803 but from the datasheet I couldnt find out whether its possible or not..Besides I dont have any samples so I cant make any experiments.
Do you have suggestions for such a driver IC? Only requirement is to operate between -40 C to 85 C.

I need a response as soon as possible.
Thank you.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top