HCPL-0738
High Speed CMOS Optocoupler
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
The HCPL-0738 is a dual-channel 15 MBd CMOS
optocoupler in SOIC-8 package. The HCPL-0738
optocoupler utilizes the latest CMOS IC technology to achieve out-standing performance with very low
power consumption. Basic building blocks of HCPL-0738
are high speed LEDs and CMOS detector ICs. Avago also
offers the same performance in the single channel version, HCPL-0708. Each detector incorporates an integrated
photodiode, a high speed transimpedance amplifier, and
a voltage comparator with an output driver.
Functional Diagram
ANODE 1
1
8
VDD
CATHODE 1
2
7
VO 1
CATHODE 2
3
6
VO 2
ANODE 2
4
5
GND
Features
• 15 ns typical pulse width distortion
• 40 ns maximum propagation delay skew
• 20 ns typical propagation delay
• High speed: 15 MBd
• + 5 V CMOS compatibility
• 10 kV/µS minimum common mode rejection
• –40 to 100˚C temperature range
• Safety and regulatory approvals
– UL recognized (3750 V rms for 1 minute per UL
1577)
– CSA component acceptance notice #5.
– IEC/EN/DIN EN 60747-5-2 approved for HCPL-0738
Option 060
Applications
• PDP (plasma display panel)
• Digital field bus isolation: DeviceNet, SDS, Profibus
• Multiplexed data transmission
• Computer peripheral interface
• Microprocessor system interface
• DC/DC converter
Truth Table
LED
OFF
ON
TRUTH TABLE
LED
OFF
ON
VO, OUTPUT
VO,HOutput
H
L
L
Note: A 0.1 µF bypass capacitor must be connected between pins 5 and 8.
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to
prevent damage and/or degradation which may be induced by ESD.
Ordering Information
HCPL-0738 is UL Recognized with 3750 Vrms for 1 minute per UL1577.
Option
Part number
RoHS
Compliant
Non RoHS
Compliant
-000E
No option
-500E
-500
-060E
-060
HCPL-0738
Surface Gull Tape UL 5000 Vrms/
Package Mount Wing & Reel 1 Minute rating
IEC/EN/DIN
EN 60747-5-2 Quantity
X
SO-8
100 per tube
X
X
1500 per reel
X
X
100 per tube
To order, choose a part number from the part number column and combine with the desired option from the option column to form an order entry.
Example 1:
HCPL-0738-500E to order product of Small Outline SO-8 package in Tape and Reel packaging in RoHS compliant.
Example 2:
HCPL-0738 to order product of Small Outline SO-8 package in tube packaging and non RoHS compliant.
Option datasheets are available. Contact your Avago sales representative or authorized distributor for information.
Selection Guide
Small Outline SO-8
HCPL-0738
Package Outline Drawing
HCPL-0738 Outline Drawing (Small Outline SO-8 Package)
LAND PATTERN RECOMMENDATION
8
7
6
5
XXX
YWW
3.937 ± 0.127
(0.155 ± 0.005)
PIN 1
ONE
2
3
0.405 ± 0.076
(0.015 ± 0.003)
5.994 ± 0.203
(0.236 ± 0.008)
DATE CODE
4
1.9 (0.075)
1.270
BSC
(0.050)
0.64 (0.025)
*5.080 ± 0.127
(0.205 ± 0.005)
3.175 ± 0.127
(0.125 ± 0.005)
7.49 (0.295)
TYPE NUMBER
(LAST 3 DIGITS)
7°
1.524
(0.060)
45° x 0.432
(0.017)
0.228 ± 0.025
(0.009 ± 0.001)
0 - 7°
0.202 ± 0.102
(0.008 ± 0.004)
0.305
MIN.
(0.012)
*TOTAL PACKAGE LENGTH (INCLUSIVE OF MOLD FLASH)
5.207 ± 0.254 (0.205 ± 0.010)
DIMENSIONS IN MILLIMETERS AND (INCHES).
LEAD COPLANARITY = 0.10 mm (0.004 INCHES) MAX.
NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.
Solder Reflow Temperature Profile
300
TEMPERATURE (°C)
PREHEATING RATE 3°C + 1°C/–0.5°C/SEC.
REFLOW HEATING RATE 2.5°C ± 0.5°C/SEC.
200
PEAK
TEMP.
245°C
PEAK
TEMP.
240°C
2.5°C ± 0.5°C/SEC.
30
SEC.
160°C
150°C
140°C
SOLDERING
TIME
200°C
30
SEC.
3°C + 1°C/–0.5°C
100
PREHEATING TIME
150°C, 90 + 30 SEC.
50 SEC.
TIGHT
TYPICAL
LOOSE
ROOM
TEMPERATURE
0
0
50
100
150
TIME (SECONDS)
Note: Non-halide flux should be used.
Recommended Pb-Free IR Profile
tp
Tp
TEMPERATURE
TL
Tsmax
260 +0/-5 °C
TIME WITHIN 5 °C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
217 °C
RAMP-UP
3 °C/SEC. MAX.
150 - 200 °C
RAMP-DOWN
6 °C/SEC. MAX.
Tsmin
ts
PREHEAT
60 to 180 SEC.
25
tL
60 to 150 SEC.
t 25 °C to PEAK
TIME
NOTES:
THE TIME FROM 25 °C to PEAK TEMPERATURE = 8 MINUTES MAX.
Tsmax = 200 °C, Tsmin = 150 °C
Note: Non-halide flux should be used.
PEAK
TEMP.
230°C
200
250
Regulatory Information
The HCPL-0738 has been
approved by the following
organizations:
CSA
Approved under CSA Component
Acceptance Notice #5, File
CA88324.
UL
Recognized under UL 1577,
component recognition program,
File E55361.
IEC/EN/DIN EN 60747-5-2
Approved under:
IEC 60747-5-2:1997 + A1:2002
EN 60747-5-2:2001 + A1:2002
DIN EN 60747-5-2 (VDE 0884 Teil 2):2003-01
(Option 060 only)
Insulation and Safety Related Specifications (approval pending)
Parameter
Symbol
Value
Units
Conditions
Minimum External Air Gap
(Clearance)
L(I01)
4.9
mm
Measured from input terminals to output terminals,
shortest distance through air.
Minimum External Tracking
(Creepage)
L(I02)
4.8
mm
Measured from input terminals to output terminals,
shortest distance path along body.
Minimum Internal Plastic Gap
(Internal Clearance)
0.08
mm
Insulation thickness between emitter and detector; also
known as distance through insulation.
Tracking Resistance
(Comparative Tracking Index)
CTI
≥ 175
Volts
DIN IEC 112/VDE 0303 Part 1
Isolation Group
IIIa
Material Group (DIN VDE 0110, 1/89, Table 1)
All Avago data sheets report the creepage and clearance
inherent to the optocoupler component itself. These
dimensions are needed as a starting point for the equipment designer when determining the circuit insulation
requirements. However, once mounted on a printed
circuit board, minimum creepage and clearance requirements must be met as specified for individual equipment
standards. For creepage, the shortest distance path along
the surface of a printed circuit board between the solder
fillets of the input and output leads must be considered.
There are recommended techniques such as grooves
and ribs which may be used on a printed circuit board
to achieve desired creepage and clearances. Creepage
and clearance distances will also change depending on
factors such as pollution degree and insulation level.
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
Storage Temperature
TS
–55
125
˚C
Ambient Operating Temperature
TA
–40
100
˚C
Supply Voltage
VDD
0
6.0
Volts
Output Voltage
VO
–0.5
VDD + 0.5
Volts
Average Forward Input Current
IF
—
20
mA
Average Output Current
IO
—
2
mA
Lead Solder Temperature
260˚C for 10 seconds, 1.6 mm below seating plane
Solder Reflow Temperature Profile
Recommended Operating Conditions
See Solder Reflow Thermal Profile section
Parameter
Ambient Operating Temperature
Symbol
TA
Minimum
–40
Maximum
100
Units
˚C
Supply Voltages
VDD
4.5
5.5
V
Input Current (ON)
IF
10
16
mA
Electrical Specifications
Over recommended temperature (TA = –40˚C to +100˚C) and 4.5 V ≤ VDD ≤ 5.5 V.
All typical specifications are at TA = 25˚C, VDD = +5 V.
Parameter
Symbol
Min.
Typ.
Max.
Input Forward Voltage
VF
1.3
1.5
1.8
Units
V
Test Conditions
IF = 12 mA
Fig.
1
Input Reverse Breakdown
Voltage
BVR
5
V
IR = 10 µA
Logic High Output Voltage
VOH
4.0
5
V
IF = 0, IO = –20 µA
Logic Low Output Voltage
VOL
0.01
0.1
V
IF = 12 mA, IO = 20 µA
Input Threshold Current
ITH
4.5
8.2
mA
IOL = 20 µA
2
Logic Low Output Supply
Current
IDDL
10
18.0
mA
IF = 12 mA
4
Logic High Output Supply
Current
IDDH
8
15.0
mA
IF = 0 mA
3
Notes
Switching Specifications
Over recommended temperature (TA = –40˚C to +100˚C) and 4.5 V ≤ VDD ≤ 5.5 V.
All typical specifications are at TA = 25˚C, VDD = +5 V.
Parameter
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Fig.
Notes
Propagation Delay Time
to Logic Low Output
tPHL
20
35
60
ns
IF = 12 mA, CL = 15 pF
CMOS Signal Levels
5
1
Propagation Delay Time
to Logic High Output
tPLH
11
20
60
ns
IF = 12 mA, CL = 15 pF
CMOS Signal Levels
5
1
Pulse Width
PW
100
ns
Pulse Width Distortion
|PWD|
0
15
30
ns
IF = 12 mA, CL = 15 pF
CMOS Signal Levels
5
2
Propagation Delay Skew
tPSK
40
ns
IF = 12 mA, CL = 15 pF
CMOS Signal Levels
3
Output Rise Time
(10% – 90%)
tR
20
ns
IF = 0 mA, CL = 15 pF
CMOS Signal Levels
Output Fall Time
(90% – 10%)
tF
25
ns
IF = 12 mA, CL = 15 pF
CMOS Signal Levels
Common Mode Transient
Immunity at Logic High Output
|CMH|
10
15
kV/µS
VCM = 1000 V, TA = 25˚C,
IF = 0 mA
4
Common Mode Transient
Immunity at Logic Low Output
|CML|
10
15
kV/µS
VCM = 1000 V, TA = 25˚C,
IF = 12 mA
5
Package Characteristics
All typicals at TA = 25˚C.
Parameter
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Input-Output Insulation
II-O
1
µA
45% RH, t = 5 s
VI-O = 3 kV DC,
TA = 25˚C
Input-Output Momentary
Withstand Voltage
VISO
3750
V rms
RH ≤ 50%, t = 1 min.,
TA = 25˚C
Input-Output Resistance
RI-O
1012
Ω
VI-O = 500 V DC
Input-Output Capacitance
Notes:
CI-O
0.6
pF
f = 1 MHz, TA = 25˚C
TA = 25°C
100
IF
+
VF
–
10
1.0
0.1
0.01
0.001
1.1
1.2
1.3
1.4
1.5
1.6
10.0
8
VDD = 5.0 V
IOL = 20 µA
7
6
5
Ith1
Ith2
4
3
2
1
0
-40
-20
VF – FORWARD VOLTAGE – V
VDD = 5.0 V
11.0
10.8
10.6
Iddl
10.4
10.2
10.0
9.8
9.6
-40
-20
0
20
40
60
80
TA – TEMPERATURE – °C
Figure 4. Typical logic low O/P supply current vs.
temperature.
40
60
80
100
50
tp – PROPAGATION DELAY – ns
IDDL – LOGIC LOW SUPPLY CURRENT – mA
11.2
20
Figure 2. Typical input threshold current vs. temperature.
11.6
11.4
0
TA – TEMPERATURE – °C
Figure 1. Typical input diode forward characteristic.
100
45
40
35
Tphl CH 2
Tphl CH 1
30
Tplh CH 2
25
Tplh CH 1
20
15 PWD CH 1
10
5
0
IDDH – LOGIC HIGH OUTPUT SUPPLY CURRENT – mA
IF – FORWARD CURRENT – mA
1000
Ith – INPUT THRESHOLD CURRENT – mA
1. tPHL propagation delay is measured from the 50% level on the rising edge of the input pulse to the 2.5 V level of the falling edge of the VO
signal. tPLH propagation delay is measured from the 50% level on the falling edge of the input pulse to the 2.5 V level of the rising edge of the
VO signal.
2. PWD is defined as |tPHL - tPLH|.
3. tPSK is equal to the magnitude of the worst case difference in tPHL and/or tPLH that will be seen between units at any given temperature within
the recommended operating conditions.
4. CMH is the maximum tolerable rate of rise of the common mode voltage to assure that the output will remain in a high logic state.
5. CML is the maximum tolerable rate of fall of the common mode voltage to assure that the output will remain in a low logic state.
PWD CH 2
VDD = 5.0 V
TA = 25 °C
5
6
7
8
9 10 11 12 13 14
IF – PULSE INPUT CURRENT – mA
Figure 5. Typical switching speed vs. pulse input current.
HCPL-0738 fig 5
9.5
VDD = 5.0 V
9.0
8.5
Iddh
8.0
7.5
7.0
6.5
6.0
-40
-20
0
20
40
60
80
TA – TEMPERATURE – °C
Figure 3. Typical logic high O/P supply current vs.
temperature.
100
Application Information
Bypassing and PC Board Layout
The HCPL-0738 optocoupler is extremely easy to use. No
external interface circuitry is required because the HCPL0738 uses high-speed CMOS IC technology allowing CMOS
logic to be connected directly to the inputs and outputs.
IF1
VDD
8
1
As shown in Figure 6, the only external component required
for proper operation is the bypass capacitor. Capacitor values
should be between 0.01 µF and 0.1 µF. For each capacitor,
the total lead length between both ends of the capacitor
and the power-supply pins should not exceed 20 mm.
C
2
GND 1
3
IF2
4
XXX
YWW
GND 1
7
VO 1
6
VO 2
5
GND 2
Figure 6. Recommended printed circuit board layout.
Propagation Delay, Pulse-Width
Distortion, and Propagation Delay Skew
Propagation delay is a figure of merit which describes how
quickly a logic signal propagates through a system. The
propagation delay from low to high (tPLH) is the amount
of time required for an input signal to propagate to the
output, causing the output to change from low to high.
Similarly, the propagation delay from high to low
(t PHL ) is the amount of time required for the input signal to propagate to the output, causing the
output to change from high to low (see Figure 7).
Pulse-width distortion (PWD) results when tPLH and
tPHL differ in value. PWD is defined as the difference
between tPLH and tPHL and often determines the maximum data rate capability of a transmission system. PWD
can be expressed in percent by dividing the PWD (in ns)
by the minimum pulse width (in ns) being transmitted.
Typically, PWD on the order of 20-30% of the minimum
pulse width is tolerable; the exact figure depends on
the particular application (RS232, RS422, T-1, etc.).
Propagation delay skew, tPSK, is an important parameter
to con-sider in parallel data applications where synchronization of signals on parallel data lines is a concern. If
the parallel data is being sent through a group of optocouplers, differences in propagation delays will cause
the data to arrive at the outputs of the optocouplers at
different times. If this difference in propagation delays
is large enough, it will determine the maximum rate at
which parallel data can be sent through the optocouplers.
Propagation delay skew is defined as the difference between the minimum and maximum propagation delays,
either tPLH or tPHL, for any given group of optocouplers
which are operating under the same conditions (i.e.,
the same supply voltage, output load, and operating
temperature). As illustrated in Figure 8, if the inputs
of a group of optocouplers are switched either ON or
OFF at the same time, tPSK is the difference between
the shortest propagation delay, either t PLH or tPHL,
and the longest propagation delay, either tPLH or tPHL.
Propagation delay skew repre-sents the uncertainty
of where an edge might be after being sent through
an optocoupler. Figure 7 shows that there will be
uncertainty in both the data and the clock lines. It is important that these two areas of uncertainty not overlap,
otherwise the clock signal might arrive before all of the
data outputs have settled, or some of the data outputs
may start to change before the clock signal has arrived.
From these considerations, the absolute minimum pulse
width that can be sent through optocouplers in a parallel
application is twice tPSK. A cautious design should use a
slightly longer pulse width to ensure that any additional uncertainty in the rest of the circuit does not cause a problem.
As mentioned earlier, tPSK can determine the maximum
parallel data transmission rate. Figure 8 is the timing diagram of a typical parallel data application with both the
clock and the data lines being sent through optocouplers.
The figure shows data and clock signals at the inputs and
outputs of the optocouplers. To obtain the maximum
data transmission rate, both edges of the clock signal
are being used to clock the data; if only one edge were
used, the clock signal would need to be twice as fast.
IF
VO
50%
DATA
INPUTS
2.5 V,
CMOS
CLOCK
tPSK
IF
The tPSK specified optocouplers offer the advantages of
guaranteed specifications for propagation delays, pulsewidth distortion and propagation delay skew over the
recommended temperature, and power supply ranges.
50%
DATA
OUTPUTS
VO
2.5 V,
CMOS
tPSK
CLOCK
tPSK
Figure 7. Propagation delay skew waveform.
Figure 8. Parallel data transmission example.
For product information and a complete list of distributors, please go to our website: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries.
Data subject to change. Copyright © 2007 Avago Technologies Limited. All rights reserved.
AV02-0878EN January 8, 2008
8