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MX879 [IXYS]

8-Channel, 60V Relay/Load Driver Open Drain Output, 3 Wire Interface; 8通道， 60V继电器/负载驱动开漏输出， 3线接口
MX879
型号： MX879
厂家： IXYS CORPORATION    IXYS CORPORATION
描述：

8-Channel, 60V Relay/Load Driver Open Drain Output, 3 Wire Interface
8通道， 60V继电器/负载驱动开漏输出， 3线接口

继电器 驱动
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MX879  
8-Channel, 60V Relay/Load Driver  
Open Drain Output, 3 Wire Interface  
IXYS  
Features:  
General Description  
The MX879 is an 8 channel high voltage switch with  
8-bit parallel or serial input control. The MX879  
connects directly to a microprocessor through a  
standard 3 wire serial interface. The open drain pull-  
up output configuration can drive up to 60 volts at  
120mA. Outputs can be paralleled for increased  
drive current up to a device total of 600mA source.  
• 8 Outputs Rated at 60V, 120mA  
• Open Drain Pull-Up Driver Configuration  
• 6V to 60V Driver Supply Range  
• 2.7V to 5.5V Logic Supply Range  
• 3 Wire Serial Interface plus Chip Select  
• Captures Serial & Parallel Input Data  
• Outputs can be paralleled  
• 28 Lead QFN Package  
The MX879 is designed to operate over  
a
temperature range of -40°C to +85°C, and is  
available in a QFN-28 Package.  
Applications:  
Ordering Information  
• White Goods  
• ATE  
• Industrial Equipment  
• Automotive Relay Control  
Qty  
73  
Part No.  
Description  
087900-00 QFN-28  
087941-00 QFN-28 Tape & Reel  
2500  
Functional Block Diagram  
VCC  
VPWR  
CS*  
SDO  
IN7  
I/O  
Latch  
Register  
Driver  
IN6  
IN5  
IN4  
IN3  
IN2  
IN1  
IN0  
OUT7  
OUT6  
OUT5  
OUT4  
OUT3  
OUT2  
OUT1  
OUT0  
Register  
Level  
Translator  
Parallel  
In & Out  
SCK  
SDI  
OE  
GND  
MX879  
Drawing No. 087909  
1
06/08/06  
www.claremicronix.com  
MX879  
IXYS  
Absolute Maximum Ratings (Voltages with respect to GND=0V)  
Absolute Maximum Ratings are  
stress ratings. Stresses in excess of  
these ratings can cause permanent  
damage to the device. Functional  
operation of the device at these or  
any other conditions beyond those  
indicated in the operational sections  
of this data sheet is not implied.  
Exposure of the device to the  
absolute maximum ratings for an  
extended period may degrade the  
device and affect its reliability.  
Parameter  
Symbol  
VPWR  
VCC  
Min Max Unit  
VPWR Supply Voltage  
Logic Supply Voltage  
Input Pin Voltage  
Continuous Output Current  
Storage Temperature  
Operating Ambient Temp  
Operating Junction Temp  
62  
6
V
V
VIN  
6
V
IOUT(OUT0-7)  
TSTG  
150  
150  
85  
mA  
Co  
Co  
Co  
-55  
-40  
TA  
TJ  
150  
Thermal Resistance  
(Junction to Ambient)  
RθJA  
110 Typical Co/W  
ESD Warning  
ESD (electrostatic discharge) sensitive device. Although the MX879 features proprietary ESD protection circuitry,  
permanent damage may be sustained if subjected to high energy electrostatic discharges. Proper ESD precautions  
are recommended to avoid performance degradation or loss of functionality.  
DC Electrical Characteristics  
VCC=5.0V, VPWR=42V, TA=25oC, unless otherwise specified.  
Parameter  
Condition  
Min  
Typ  
Max Unit  
Logic Supply Voltage  
Logic Supply Current  
Quiescent Logic Supply Current  
VPWR Voltage  
2.7  
5.5  
V
µA  
µA  
V
fSCK = 5 MHz  
fSCK = 0  
50  
1
60  
6
VPWR Current  
Total of all outputs  
VPWR = 42V, No load  
IN0-7, SCK, SDI, OE, CSÄ  
600  
mA  
mA  
V
Quiescent VPWR Current  
High Level Input Voltage  
Low Level Input Voltage  
Input Leakage Current  
SDO Tri-State Leakage Current  
Out0-7 Current  
0.75  
VCC-0.5  
0.5  
1
V
µA  
µA  
mA  
Ω
CSÄ = Logic High  
Any one output, source  
VPWR = 42V  
1
120  
Out0-7 ON Resistance  
7
Out0-7 Tri-State Leakage Current OE = Logic Low  
1
µA  
Notes: To avoid unwanted output during VPWR application and system initialization, keep OE at a logic  
low until CSÄ has completed one cycle.  
Thermal Resistance is measured in still air with the device soldered to a 6 square inch board  
without a ground plane. Applications may require derating of the specified maximum currents to  
avoid exceeding the maximum operation junction temperature.  
MX879  
2
06/08/06  
Drawing No. 087909  
www.claremicronix.com  
MX879  
IXYS  
AC Electrical Characteristics  
VCC=5.0V, VPWR=42V, TA=25oC, unless otherwise specified.  
Parameter  
Symbol  
Condition  
Min Typ Max Unit  
SCK Period 1  
100  
40  
40  
DC  
nS  
nS  
nS  
nS  
nS  
nS  
nS  
SCK High Time 1  
SCK Low Time 1  
CSÄ High Time 1  
tCSwh  
tCSs  
tCSwl  
tINs  
50  
CSÄ Falling to SCK Rising 1  
CSÄ Low Time 1  
Setup Time  
SCK Low, (parallel input mode)  
150  
150  
15  
INX to CS Falling (SETUP TIME) 1  
INX to CS Falling (HOLD TIME) 1  
tINh  
30  
SDI to SCK Rising (SETUP TIME) 1 tSDIs  
20  
nS  
SDI to SCK Rising (HOLD TIME) 1  
SCK Falling to SDO Data Valid  
CSÄ Rising to SDO High Z  
CSÄ Rising to OUTX Rising  
tSDIh  
tSDO  
tSDOz  
tOUTr  
25  
10  
12  
nS  
nS  
nS  
To 50%, C(OUTx) = 1000pF  
680  
From 10% to 90%,  
C(OUTx) = 1000pF  
OUTX Rise Time  
110  
nS  
OE Rising to OUTX Rising  
OE Rising to OUTX Falling  
To 90%  
To 90%  
To 10%, OUTx High  
To 10%, OUTx Low  
580  
390  
130  
90  
nS  
nS  
nS  
nS  
OE Falling to OUTX High Z  
Note 1: Guaranteed by design.  
MX879  
Drawing No. 087909  
3
06/08/06  
www.claremicronix.com  
MX879  
IXYS  
Serial Timing  
INx  
tINs  
CS*  
tINh  
tCSs  
tCSwh  
SCK  
SDI  
tSDIs  
tSDIh  
tSDO  
tSDOz  
SDO  
OUTx  
tOUTr  
tOUTf  
Parallel Timing  
INx  
tINs  
tINh  
CS*  
tCSwl  
tOUTr  
OUTx  
tOUTf  
MX879  
4
06/08/06  
Drawing No. 087909  
www.claremicronix.com  
MX879  
IXYS  
Pin Description  
Pin No.  
4, 17  
2, 5  
Pin Name  
Description  
VPWR  
-
High Voltage Supply ( 6V to 60V)  
No Connect  
6
VCC  
SDO  
IN7  
Logic Supply (2.7V to 5.5V)  
Serial Data Output  
Parallel Input  
7
8
9
IN6  
Parallel Input  
10  
11  
12  
13  
14  
15  
16  
18  
19  
20  
3, 21  
22  
23  
24  
25  
26  
27  
28  
1
IN5  
Parallel Input  
IN4  
Parallel Input  
IN3  
Parallel Input  
IN2  
Parallel Input  
IN1  
Parallel Input  
IN0  
Parallel Input  
SCK  
SDI  
CSÄ  
Serial Clock  
Serial Data Input  
Chip Select (Active Low)  
Output Enable  
Ground  
OE  
GND  
OUT0  
OUT1  
OUT2  
OUT3  
OUT4  
OUT5  
OUT6  
OUT7  
Parallel Output  
Parallel Output  
Parallel Output  
Parallel Output  
Parallel Output  
Parallel Output  
Parallel Output  
Parallel Output  
MX879  
5
06/08/06  
Drawing No. 087909  
www.claremicronix.com  
MX879  
IXYS  
Functional Description  
The MX879 is an 8 channel high voltage driver  
with 8-bit input control. The MX879 interfaces to a  
microprocessor through a standard 3 wire serial  
interface and an active low chip select, or can be  
used in a parallel-in, parallel-out configuration.  
Serial Data Transfer Example  
0
IN7  
IN6  
IN5  
IN4  
IN3  
IN2  
IN1  
IN0  
0
1
0
Parallel data is transferred to the I/O register of  
the MX879 through the parallel input pins, IN0  
through IN7 on the falling edge of the chip select  
pin, CSÄ. When CSÄ is in a logic low state, serial  
data can be transferred to the I/O register through  
the serial input pin, SDI, and from the I/O register  
through the serial output pin, SDO. Parallel or  
serial input data is transferred from the I/O  
register to the latch and high voltage output  
drivers, OUT0 through OUT7, on the positive  
edge of CSÄ. This data remains latched until the  
next positive edge of CSÄ.  
1
1
1
0
0
0
0
0
1
t1  
0
0
0
1
0
1
1
1
1
1
SDI  
CS  
*
SCK  
SDO  
0
SDI at  
time t1  
OUT7  
OUT6  
OUT5  
OUT4  
OUT3  
OUT2  
OUT1  
OUT0  
1
0
The 8-bit I/O shift register is clocked by the  
serial clock pin, SCK. Serial data presented at the  
SDI pin is transferred to the shift register on the  
positive edge of SCK. Data shifts out of the  
register through the SDO pin on the negative  
edge of SCK. SDI and SCK are ignored, and  
SDO transitions to a high impedance condition  
when CSÄ is at a logic high state.  
0
0
0
1
1
0
Serial data is received by the MX879 through  
the SDI pin. This data is accepted on the rising  
edge of SCK. A specific output is programmed to  
a logic high state if SDI is at a logic high state  
during the rising edge of SCK. Conversely, a  
specific output is programmed to a logic low state  
if SDI is at a logic low state during the rising edge  
of SCK. Outputs transition to their programmed  
states on the positive edge of CSÄ if the output  
enable pin, OE is in a logic high state.  
Devices may be serially cascaded by  
connecting SDO to SDI of the next device. Pins  
SCK and CSÄ are common to all devices in serial  
cascade. For n-cascaded devices the CSÄ should  
remain low for 8n cycles of SCK.  
An output enable pin, OE enables the driver  
outputs OUT0 through OUT7 when logic high. A  
logic low level on OE forces the OUT0 through  
OUT7 outputs to a high impedance state.  
The MSB input data (IN7) is presented at the  
serial output pin, SDO on the falling edge of CSÄ.  
Input data from IN6 through IN0 is sequentially  
presented at SDO on negative SCK transitions if  
CSÄ remains in a logic low state. If CSÄ is at a  
logic low state beyond 8 cycles of SCK, SDI data  
that has propagated through the I/O register will  
then be presented at SDO. The SDO pin  
transitions to a high impedance state when CSÄ  
is in a logic level high state, thus allowing multiple  
serial peripherals to share the microprocessor  
data pin.  
The MX879 can also operate as a parallel-in,  
parallel-out level shifter and driver. SCK must  
remain at a logic low state when operating in this  
mode. Parallel input data presented to IN0  
through IN7 is captured on the falling edge of  
CSÄ. This data is transferred to OUT0 through  
OUT7 on the rising edge of CSÄ, and remains  
latched until the next rising edge of CSÄ.  
MX879  
6
06/08/06  
Drawing No. 087909  
www.claremicronix.com  
MX879  
IXYS  
Parallel-in / Parallel-out Application  
IN  
OUT  
8
8
CS*  
OE  
SDI  
SCK  
Serial Cascade Application  
MASTER IN  
SDO  
IN  
OUT  
8
8
SCK  
CS*  
OE  
SDI  
SDO  
OUT  
IN  
8
8
SCK  
CS*  
OE  
SDI  
MASTER OUT  
MX879  
Drawing No. 087909  
7
06/08/06  
www.claremicronix.com  
MX879  
IXYS  
Control System Application  
System  
sensors  
MX879  
capture  
drive  
IN  
8
8
SDI  
SDO  
SCK  
CS*  
OE  
uC  
actuators  
OUT  
Type 1 timing:  
capture N  
drive N  
analyze N, calculate N+1  
capture N+1  
uC  
drive N+1  
CS*  
SDI  
uC  
output N  
output N+1  
uC  
SCK  
SDO  
input N  
uC  
input N+1  
Type 2 timing:  
capture N  
analyze N, calculate N+1  
drive N+1  
capture N+1  
CS*  
SDI  
don't care  
uC  
output N+1  
SCK  
SDO  
input N  
uC  
ignore  
MX879  
Drawing No. 087909  
8
06/08/06  
www.claremicronix.com  
MX879  
IXYS  
28 LEAD 5MM X 5MM X 0.90MM QFN  
PIN 1  
(REF.)  
DIMENSIONS  
INCH  
MM.  
DIM.  
MIN. MAX. MIN. MAX.  
A
A1  
A2  
b
.031 .039  
.002  
.80  
0
1.0  
.05  
0
.008 REF.  
.007 .012  
.197 BSC  
,200 REF.  
.18 .30  
5.00 BSC  
D
TOP VIEW  
SIDE VIEW  
D2  
E
.118 .128 3.00 3.25  
.197 BSC 5.00 BSC  
.118 .128 3.00 3.25  
.0197 BSC .500 BSC  
E2  
e
L
.0177 .0256 .45  
28  
.65  
N
28  
3. MOLDED PACKAGE SHALL CONFORM TO  
JEDEC STANDARD CONFIGURATION  
MO-220 VARIATION VHHD-1.  
2. DIMENSIONS AND TOLERANCING CONFORM  
TO ASME Y14.5M-1994.  
1. COPLANARITY APPLIES TO THE EXPOSED  
HEAT SINK SLUG AS WELL AS THE TERMINALS.  
NOTES: (UNLESS OTHERWISE SPECIFIED)  
BOTTOM VIEW  
IXYS Corporation makes no representations or warranties with respect to the accuracy or completeness of the contents of this  
publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither  
circuit patent licenses nor indemnity are expressed or implied. Except as set forth in IXYS’ Standard Terms and Conditions of Sale,  
IXYS Corporation assumes no liability whatsoever, and disclaims any expressed or implied warranty, relating to its products  
including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any  
intellectual property right  
.
MX879  
9
06/08/06  
Drawing No. 087909  
www.claremicronix.com  
World Wide Sales Offices  
IXYS  
3540 Bassett Street  
Santa Clara, CA 925054  
Tel: 1-408-892-0700  
Fax: 1-408-496-0670  
e-mail:sales@ixys.net  
IXYS Corporation  
United Kingdom  
IXYS Semiconductor Limited  
Langley Park Way  
Langley Park  
Chippenham  
Wiltshire SN 15 1GE - England  
Tel: 44 1249 444524  
Fax: 44 1249 659448  
sales@ixys.co.uk  
Micronix  
An IXYS Company  
145 Columbia  
Aliso Viejo, CA 92656-1490  
Tel: 1-949-831-4622  
Fax: 1-949-831-4628  
Sales Offices ASIA / PACIFIC  
Asian Headquarters  
IXYS  
Room 1016, Chia-Hsin, Bldg II,  
10F, No. 96, Sec. 2  
Chung Shan North Road  
Taipei, Taiwan R.O.C.  
Tel: 886-2-2523-6368  
Fax: 886-2-2523-6368  
bradley.green@ixys.co.uk  
Jhong@clare.com  
SALES OFFICES AMERICAS  
Eastern Region  
[Eastern North America, Mexico, South America]  
IXYS Corporation  
Beverly, MA  
Tel: 508-528-6883  
Fax: 508-528-4562  
wgh@ixys.net  
Central Region  
Check the IXYS Website for the local sales  
office nearest you. (www.ixys.com)  
[Central North America]  
IXYS Corporation  
Greensburg, PA  
Tel: 724-836-8530  
Fax: 724-836-8540  
neil.lejeune@westcode.com  
Western Region  
[Western North America]  
IXYS Coporation  
Solana Beach, CA  
Tel: 858-792-1101  
slodor@ix.netcom.com  
SALES OFFICES EUROPE  
http://www.claremicronix.com  
European Headquarters  
IXYS Semiconductor GMBH  
Edisonstrasse 15  
D- 68623 Lampertheim  
Germany  
Tel: 49-6206-503203  
Fax: 49-6206-503286  
marcom@ixys.de  
IXYS cannot assume responsibility for use of any circuitry other than circuitry  
entirely embodied in this IXYS product. No circuit patent licenses nor indemnity  
are expressed or implied. IXYS reserves the right to change the specification and  
circuitry, without notice at any time. The products described in this document are  
not intended for use in medical implantation or other direct life support  
applications where malfunction may result in direct physical harm, injury or death  
to a person.  
Specification: MX879  
©Copyright 2006, IXYS Corporation  
All rights reserved. Printed in USA.  
MX879  
10  
06/08/06  
Drawing No. 087909  
www.claremicronix.com  

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