OL7272
Industrial 30 Volt 4-Channel Differential Power Linedriver -
Short Circuit Proof
-
OPTOLAB Microsystems GmbH * Haarbergstr. 61 * 99097 Erfurt / Germany * Tel. +49-361-422906-0 * Fax +49-361-422906-50 *
www.optolab.com
Datasheet Version 1.04 May.30.2000
Features
Max. voltage range from 4,5 V 36 V
Short circuit proof tri-state outputs drive
up to 120mA sink / source
Operating frequency up to 4 MHz
Pin compatible with ET7272
Dynamic peak current up to 1,5 Amp.
High impedance CMOS / TTL compatible
buffered inputs with hysteresis
Outputs RS422A compatible
Small package TSSOP (OL2068) available
Applications
Industrial encoder interfacing
Industrial sensor interfacing
Proximity switches
Industrial controllers PLC
Light barriers
Voltage regulator
CMOS / TTL
Data input
CMOS / TTL
Data input
CMOS / TTL
Data input
CMOS / TTL
Data input
Differential
Output A
Output A -
Differential
Output B
Output B -
Differential
Output C
Output C -
Differential
Output D
Output D -
Protection logic controller
- short circuit shut down
- Tristate and thermal logic control
- undervoltage and power up reset
- Transient and EMI protection
5V , 5mA out
Line voltage in
Tristate enable / disable
Thermal shutdown disable
General Description
The OL7272 is an industrial power
linedriver and contains four identical
short circuit proof differential
linedrivers up to 30 Volts driver supply
with a joint enable function.
At overload there is a thermal
shutdown feature which can be
disabled by the user.
The high data rate and immunity to
cable inductance and capacitance
makes an ideal linedriver.
The small outline SOP package gives
excellent thermal power dissipation,
thus the usage in space limited
applications is easy.
OL7272
Industrial 30 Volt 4-Channel Differential Power Linedriver -
short circuit proof
-
OPTOLAB Microsystems GmbH * Haarbergstr. 61 * 99097 Erfurt / Germany * Tel. +49-361-422906-0 * Fax +49-361-422906-50 * www.optolab.com
2/9
Electrical characteristics
All voltage values are referenced to GND (GND = 0V).
Unless stated otherwise all signals are assumed to be high active.
Table 1 Absolute Maximum Ratings
Parameter Symbol
Condition
Min
Max
Unit
DC supply voltage
V
CCD
-0.3
36.0
V
DC input voltage
V
IN
-0.3
V
CC
+ 0.3
V
DC input current
I
IN
10
mA
Output voltage
V
OUT
-0.3
V
CC
+ 0.3
V
Driver output current
(see cable model)
I
OUT
pulse peak/average
1500/120
mA
Storage and operating temperature range
T
STGOP
-55
+125
C
Junction temperature
T
J
+150
1
C
Lead temperature
T
L
soldering, 10s
+260
2
C
Power dissipation:
OL7272
SOIC16NB: R
th j-a
= 111.8 K/W
PD
T
J
= 150 C
581
mW
Table 2 Recommended Operating Conditions
Parameter Symbol
Condition
Min
Max
Unit
DC supply voltage
V
CCD
4.5
30.0
V
DC data input voltage
V
IN
D
0
V
CCD
V
DC enable input voltage
V
IN
EN
3
0
5.5
V
Data output voltage
V
OUT
D
0
V
CCD
V
Driver output current
(see cable model)
I
OUT
4
100
mA
Operating ambient temperature range
T
A
5
-40
+125
C
Junction temperature range (lifetime)
T
J
-55
+140
C
NOTE:
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in
the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability (eq. hot carrier degradation).
1
Look at over-temperature protection Table 3
2
For surface mounting plastic packages.
3
Valid for normal function. To disable automatic thermal shutdown, this pin should be set to 7,5 12 Volt.
4
Limited by power dissipation.
5
Driving capability at elevated temperatures will be limited by total package power dissipation. Special packages up to 125C can be supplied.
OL7272
Industrial 30 Volt 4-Channel Differential Power Linedriver -
short circuit proof
-
OPTOLAB Microsystems GmbH * Haarbergstr. 61 * 99097 Erfurt / Germany * Tel. +49-361-422906-0 * Fax +49-361-422906-50 * www.optolab.com
3/9
Table 3 DC Characteristics (V
CCD
= 12.0 V, T
A
= 25 C, unless otherwise noted)
Parameter Symbol
Condition
Min
Typ
Max
Unit
Schmitt trigger inputs section
Data input hysteresis
V
HYS
D
V
IL
to V
IH
and V
IH
to V
IL,
ENABLE
0.8 V
0.2 0.5 V
Data input positive going threshold
V
TH+
D
ENABLE
0.8 V
1.7
2.4
V
Data input negative going threshold
V
TH-
D
ENABLE
0.8 V
0.8 1.2 V
Enable input hysteresis
V
HYS
EN
V
IL
to V
IH
and V
IH
to V
IL,
0.2 0.5 V
Enable input pos. going threshold
V
TH+
EN
1.7
2.4
V
Enable input neg. going threshold
V
TH-
EN
0.8
1.2
V
Data input leakage current - Low
I
IL
D
ENABLE
0.8 V
-10.0 +10.0
A
High
I
IH
D
ENABLE
0.8 V
-10.0 +10.0
A
Enable input leakage current - Low
I
IL
EN
-10.0
+10.0
A
High
I
IH
EN
-10.0
+10.0
A
Push-pull output drive section
- Low side switch outputs
6
V
OLB
V
CCD
= 4.75 V, I
LOAD
= 20mA ENABLE
0.8 V
0.3
0.5 V
Low level output voltage
V
OLT
V
CCD
= 30 V, I
LOAD
= 30mA, ENABLE
0.8 V
0.4
0.5 V
Output resistance
R
DSON
7
I
LOAD
= 30 mA
13
20
High-impedance output leakage current
I
OZ
V
CCD
= 30.0 V, ENABLE
2.4 V
-10.0 +10.0
A
- High side switch outputs
6
V
OHB
V
CCD
= 4.75 V, I
LOAD
= -20 mA,ENABLE
0.8V
4.2
V
CCD -
0.4
V
High level output voltage
V
OHT
V
CCD
= 30V,I
LOAD
= -30mA, ENABLE
0.8 V
29.2
V
CCD -
0.6
V
Output resistance
R
DSON
7
I
LOAD
= -30mA
20
30
High-impedance output leakage current
I
OZ
V
CCD
= 30.0 V, ENABLE
2.4 V
-10.0 +10.0
A
Supply parameters section
I
DB
(en)
V
CCD
= 5.0 V, ENABLE
0.8 V
1.5
5.0
mA
I
DT
(en)
V
CCD
= 30.0 V, ENABLE
0.8 V
1.5
5.0
mA
I
DB
(dis)
V
CCD
= 5.0 V, ENABLE
2.4 V
1.5
3.0
mA
V
CCD
supply current
8
I
DT
(dis)
V
CCD
= 30.0 V, ENABLE
2.4 V
1.5
3.0
mA
Internal supply voltage
V
CCI
I
CCIE
= 5.0 mA
4.5
5.0
5.5
V
Quiescent current
I
CCQ
9
V
IN
= 2.4 V or 0.8 V
0.2
mA
Low voltage reset section
Hysteresis for under-voltage reset
V
HYS
LVR
0.1
V
Under-voltage reset negative going threshold
(active)
V
TH
-LVR
3.3
3.5
3.7
V
Under-voltage reset positive going threshold
(inactive)
V
TH+
LVR
3.4
3.6
3.8
V
Under-voltage reset filter time
t
FIL
LVR
10
5 s
Over-temperature protection section
Over-temp. operate point (junction)
T
JOP
+165
+185
C
Over-temp. release point (junction)
T
JRP
+125
+135
C
6
Either the low or high side switch is active at a time.
7
Values will not be part of the production test but guaranteed by design.
9
This is measured per input with all other inputs held at V
CCI
or GND.
10
Value will not be part of the production test but guaranteed by design.
OL7272
Industrial 30 Volt 4-Channel Differential Power Linedriver -
short circuit proof
-
OPTOLAB Microsystems GmbH * Haarbergstr. 61 * 99097 Erfurt / Germany * Tel. +49-361-422906-0 * Fax +49-361-422906-50 * www.optolab.com
4/9
Table 4 AC Characteristics (V
CCD
= 12.0 V, T
A
= 25 C,
Cable capacitance 1000pF
, unless otherwise noted)
Parameter Symbol
Condition
Min
Typ
Max
Unit
Disable delay time
t
OFF
100
200.0
ns
Enable delay time
t
ON
76
200.0
ns
Propagation delay from 50% point of rising
edge of input pulse to zero crossing of
differential outputs (see Figure 2)
t
PLH
V
CCD
= 5.0 V
V
CCD
= 12.0 V
V
CCD
= 24.0 V
C
LOAD
= 1000 pF
64
74
100
200.0
200.0
330.0
ns
ns
ns
Propagation delay from 50% point of falling
edge of input pulse to zero crossing of
differential outputs (see Figure 2)
t
PHL
V
CCD
= 5.0 V
V
CCD
= 12.0 V
V
CCD
= 24.0 V C
LOAD
= 1000 pF
70
80
100
280.0
280.0
330.0
ns
ns
ns
Output rise time (see Figure 1)
t
R
11
V
CCD
= 5.0 V
V
CCD
= 12.0 V
V
CCD
= 24.0 V C
LOAD
= 1000 pF
42
110
120
200.0
350.0
380.0
ns
ns
ns
Output fall time (see Figure 1)
t
F
16
V
CCD
= 5.0 V
V
CCD
= 12.0 V
V
CCD
= 24.0 V C
LOAD
= 1000 pF
32
62
84
200.0
350.0
380.0
ns
ns
ns
11
Measured from 10% to 90% of the Output signal only with capacitive load on each output pin to ground (see Figure 3).
50%
50%
50%
50%
V
OL
V
OH
Input
Output
Output-
t
PLH
t
PHL
t
PHL
50%
50%
V
IH
V
IL
t
PLH
V
OL
V
OH
V
OL
V
OH
Input
Output
V
TH+
V
IH
V
IL
V
TH-
90%
10%
10%
90%
t
R
t
F
Figure 1
Definition of Output Rise and
Fall Time
Figure 2
Timing diagram with typical
asynchronous propagation delays
L
V
CCD
Output+
Output-
1/4
OL7272
Input
C
L
C
Figure 3
AC Test Circuit
C
L
= 1.000pF
OL7272
Industrial 30 Volt 4-Channel Differential Power Linedriver -
short circuit proof
-
OPTOLAB Microsystems GmbH * Haarbergstr. 61 * 99097 Erfurt / Germany * Tel. +49-361-422906-0 * Fax +49-361-422906-50 * www.optolab.com
5/9
Mechanical characteristics
Package Dimensions
Form of delivery and order code:
SOIC16NB
Antistatic tubes containing 50 pcs part no. OL7272
Tape & Reel order part no. OL7272 TR
A demoboard with 2 line drivers plus connectors and status LEDs is available with order code
OL7272 Demo
For space critical applications custom design packages, i.e. with 2 or more driver chips in one
package, can be designed at customer request. Please email OPTOLAB at sales@Optolab.com
SOIC16NB (150 mil)
Symbol
Min Typ Max
Unit
D
9.80(0.385) - 10.0(0,393)
mm(Inch)
E1
3.80(0,149) - 4.00(0,157)
mm(Inch)
E
5.80(0,228) - 6.20(0,244)
mm(Inch)
A
1.35(0,053) - 1.75(0,069)
mm(Inch)
A1
0.10(3,9) - 0.25(9,8)
mm(mil)
b
0.33(12,9) - 0.51(20)
mm/(mil)
e
-
1.27
(50)
-
mm/(mil)
L
0.40(15) - 1.27(50)
mm/(mil)
- 8 -
Notes:
For hybrid applications this driver is also available as chip. Please contact us for further details.
For space restricted applications there is a smaller package available, please see datasheet OL2068
PDF 
ZIP