HCPL-0370
HCPL-3700
HCPL-3760
AC/DC to Logic Interface Optocouplers
Data Sheet
Description
The HCPL-0370/3700 and HCPL-3760 are voltage/
current threshold detectionoptocouplers. The HCPL-
3760 is a low-current version of the HCPL-0370/
3700. To obtain lower current operation, the HCPL-
3760 uses a high-efficiency AlGaAs LED which
provides higher light output at lower drive currents.
The devices utilize threshold sensing input buffer ICs
which permit control of threshold levels over a wide
range of input voltages with a single external resistor.
The input buffer incorporates several features:
hysteresis for extra noise immunity and switching
immunity, a diode bridge for easy use with ac input
signals, and internal clamping diodes to protect the
buffer and LED from a wide range of over-voltage and
over-current transients. Because threshold sensing is
done prior to driving the LED, variations in optical
coupling from the LED to the detector will have no
effect on the threshold levels.
Functional Diagram
Features
• Standard (HCPL-0370/3700) and low input current
(HCPL-3760) versions
• AC or DC input
• Programmable sense voltage
• Hysteresis
• Logic compatible output
• Thresholds guaranteed over temperature
• Thresholds independent of LED optical parameters
• Recognized under UL 1577 and CSA approved for
dielectric withstand proof test voltage of 3750 Vac,
1 minute
Applications
• Limit switch sensing
• Low voltage detector
• 5 V-240 V AC/DC voltage sensing
• Relay contact monitor
• Relay coil voltage monitor
• Current sensing
• Microprocessor interfacing
AC 1
8
V
CC
DC+ 2
7
NC
DC- 3
6
V
O
HCPL-0370/3700/3760
AC 4
5
GND
TRUTH TABLE
(POSITIVE LOGIC)
INPUT OUTPUT
L
H
H
L
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.
The HCPL-0370/3700's input
buffer IC has a nominal turn on
threshold of 2.5 mA (I
TH
+) and 3.7
volts (V
TH
+).
The buffer IC for the HCPL-3760
was redesigned to permit a lower
input current. The nominal turn
on threshold for the HCPL-3760 is
1.2 mA (I
TH
+) and 3.7 volts (V
TH
+).
The high gain output stage
features an open collector output
providing both TTL compatible
saturation voltages and CMOS
compatible breakdown voltages.
By combining several unique
functions in a single package, the
user is provided with an ideal
component for industrial control
computer input boards and other
applications where a predeter-
mined input threshold level is
desirable.
Ordering Information
Specify Part Number followed by Option Number (if desired)
Example
HCPL-0370#XXXX
No option = SO8 Package.
500 = Tape/Reel Package Option (1 K min.).
XXXE = Lead Free Option.
HCPL-37x0#XXXX
020 = 5000 V rms/1 minute UL Rating Option.
300 = Gull Wing Surface Mount Option.
500 = Tape/Reel Package Option (1 K min.).
XXXE = Lead Free Option.
Option data sheets available. Contact your Avago sales representative or authorized distributor for information.
Remarks: The notation “#” is used for existing products, while (new) products launched since 15th July 2001 and lead free option will use “–”
Schematic
2
Package Outline Drawings
Standard DIP Package (HCPL-3700/3760)
9.40 (0.370)
9.90 (0.390)
8
7
A XXXX
YYWW RU
PIN ONE
1.19 (0.047) MAX.
1
2
3
4
UL
RECOGNITION
6
5
TYPE NUMBER
DATE CODE
6.10 (0.240)
6.60 (0.260)
7.36 (0.290)
7.88 (0.310)
0.20 (0.008)
0.33 (0.013)
5° TYP.
1.78 (0.070) MAX.
3.56 ± 0.13
(0.140 ± 0.005)
4.70 (0.185) MAX.
1
2
AC
DC+
DC-
AC
V
CC
8
NC 7
V
O
6
GND 5
0.51 (0.020) MIN.
2.92 (0.115) MIN.
3
4
0.76 (0.030)
1.40 (0.056)
0.65 (0.025) MAX.
2.28 (0.090)
2.80 (0.110)
DIMENSIONS IN MILLIMETERS AND (INCHES).
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
Gull Wing Surface Mount Option 300 (HCPL-3700/3760)
LAND PATTERN RECOMMENDATION
9.65 ± 0.25
(0.380 ± 0.010)
8
7
6
5
1.016 (0.040)
TYPE NUMBER
DATE CODE
A XXXX
YYWW RU
6.350 ± 0.25
(0.250 ± 0.010)
10.9 (0.430)
MOLDED
1
2
3
4
UL
RECOGNITION
1.27 (0.050)
2.0 (0.080)
1.19
(0.047)
MAX.
1.780
(0.070)
MAX.
9.65 ± 0.25
(0.380 ± 0.010)
7.62 ± 0.25
(0.300 ± 0.010)
0.20 (0.008)
0.33 (0.013)
3.56 ± 0.13
(0.140 ± 0.005)
1.080 ± 0.320
(0.043 ± 0.013)
2.540
(0.100)
BSC
0.635 ± 0.130
(0.025 ± 0.005)
0.635 ± 0.25
(0.025 ± 0.010)
12° NOM.
DIMENSIONS IN MILLIMETERS (INCHES).
TOLERANCES (UNLESS OTHERWISE SPECIFIED): xx.xx = 0.01
xx.xxx = 0.005
LEAD COPLANARITY
MAXIMUM: 0.102 (0.004)
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
3
Package Outline Drawings, continued
Small Outline SO-8 Package (HCPL-0370)
LAND PATTERN RECOMMENDATION
8
7
6
5
3.937 ± 0.127
(0.155 ± 0.005)
XXX
YWW
5.994 ± 0.203
(0.236 ± 0.008)
TYPE NUMBER
(LAST 3 DIGITS)
DATE CODE
4
7.49 (0.295)
PIN ONE
1
0.406 ± 0.076
(0.016 ± 0.003)
2
3
1.9 (0.075)
1.270 BSC
(0.050)
0.64 (0.025)
*
5.080 ± 0.127
(0.200 ± 0.005)
7°
45° X
0.432
(0.017)
3.175 ± 0.127
(0.125 ± 0.005)
0 ~ 7°
1.524
(0.060)
0.203 ± 0.102
(0.008 ± 0.004)
0.228 ± 0.025
(0.009 ± 0.001)
*
TOTAL PACKAGE LENGTH (INCLUSIVE OF MOLD FLASH)
5.207 ± 0.254 (0.205 ± 0.010)
DIMENSIONS IN MILLIMETERS (INCHES).
LEAD COPLANARITY = 0.10 mm (0.004 INCHES) MAX.
0.305 MIN.
(0.012)
NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.
4
Solder Reflow Thermal Profile
300
PREHEATING RATE 3°C + 1°C/–0.5°C/SEC.
REFLOW HEATING RATE 2.5°C ± 0.5°C/SEC.
PEAK
TEMP.
245°C
PEAK
TEMP.
240°C
PEAK
TEMP.
230°C
2.5°C ± 0.5°C/SEC.
160°C
150°C
140°C
3°C + 1°C/–0.5°C
30
SEC.
30
SEC.
SOLDERING
TIME
200°C
TEMPERATURE (°C)
200
100
PREHEATING TIME
150°C, 90 + 30 SEC.
50 SEC.
TIGHT
TYPICAL
LOOSE
ROOM
TEMPERATURE
0
0
50
100
150
200
250
TIME (SECONDS)
Recommended Pb-Free IR Profile
TIME WITHIN 5 °C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
t
p
T
p
T
L
260 +0/-5 °C
217 °C
RAMP-UP
3 °C/SEC. MAX.
150 - 200 °C
TEMPERATURE
T
smax
T
smin
RAMP-DOWN
6 °C/SEC. MAX.
t
s
PREHEAT
60 to 180 SEC.
25
t 25 °C to PEAK
t
L
60 to 150 SEC.
TIME
NOTES:
THE TIME FROM 25 °C to PEAK TEMPERATURE = 8 MINUTES MAX.
T
smax
= 200 °C, T
smin
= 150 °C
Regulatory Information
The HCPL-0370/3700/3760 has
been approved by the following
organizations:
UL
Recognized under UL 1577,
component recognition program,
File E55361 (HCPL-0370
pending).
CSA
Approved under CSA Component
Acceptance Notice #5, File CA
88324.
5
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