HCPL-0370, HCPL-3700, HCPL-3760
Isolated Voltage/Current Detectors
Data Sheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
Features
The HCPL-0370/3700 and HCPL-3760 are voltage/current threshold detection optocouplers. 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.
• Standard (HCPL-0370/3700) and low input current
(HCPL‑3760) versions
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.
• 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
• AC mains and DC link voltage detection
Functional Diagram
• Relay contact monitor
AC 1
8
VCC
DC+ 2
7
NC
DC- 3
6
VO
AC 4
5
GND
• Relay coil voltage monitor
• Current sensing
• Microprocessor interfacing
TRUTH TABLE
(POSITIVE LOGIC)
INPUT OUTPUT
H
L
L
H
HCPL-3700 Functional Diagram
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 (ITH +) and 3.7 volts (VTH +).
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 (ITH +) 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 predetermined input threshold level is desirable.
Ordering Information
HCPL-0370/HCPL-3700/HCPL-3760 is UL Recognized with 3750 Vrms for 1 minute per UL1577 unless otherwise
specified.
Option
Part
number
RoHS
Compliant
Non-RoHS
Compliant
Package
Surface
Mount
HCPL0370
-000E
No option
SO-8
X
-500E
-500
X
-060E
NA
X
-560E
NA
X
-000E
No option
-300E
#300
-500E
#500
-020E
-020
-320E
-320
X
X
-520E
-520
X
X
-060E
NA
-360E
NA
HCPL3700
HCPL3760
300 mil
DIP-8
Gull
Wing
UL 5000
Vrms/1
Minute
IEC/EN/DIN
EN 60747-5-5 Quantity
100 per tube
X
1500 per reel
X
X
100 per tube
X
1500 per reel
50 per tube
X
X
X
X
X
X
X
X
-560E
NA
-000E
No option
-300E
#300
-500E
#500
-060E
NA
-360E
NA
X
X
-560E
NA
X
X
300 mil
DIP-8
Tape
& Reel
50 per tube
X
X
X
1000 per reel
X
50 per tube
X
50 per tube
X
1000 per reel
X
50 per tube
X
50 per tube
X
1000 per reel
50 per tube
X
X
X
X
50 per tube
X
X
1000 per reel
X
50 per tube
X
50 per tube
X
1000 per reel
Note:
NA = Not available.
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-3760-500E to order product of Gull Wing Surface Mount package in Tape and Reel packaging with
and RoHS compliant.
Example 2: HCPL-3700 to order product of 300 mil DIP package in Tube packaging and non RoHS compliant.
Option datasheets are available. Contact your Avago sales representative or authorized distributor for information.
Remarks: The notation ‘#XXX’ is used for existing products, while (new) products launched since July 15, 2001 and
RoHS compliant will use ‘–XXXE.’
2
Schematic
Package Outline Drawings
Standard DIP Package (HCPL-3700/3760)
9.40 (0.370)
9.90 (0.390)
8
7
6
5
TYPE NUMBER
DATE CODE
A XXXX
YYWW RU
PIN ONE
1.19 (0.047) MAX.
3.56 ± 0.13
(0.140 ± 0.005)
1
2
3
4
UL
RECOGNITION
7.36 (0.290)
7.88 (0.310)
5° TYP.
1.78 (0.070) MAX.
4.70 (0.185) MAX.
0.51 (0.020) MIN.
2.92 (0.115) MIN.
0.76 (0.030)
1.40 (0.056)
0.20 (0.008)
0.33 (0.013)
6.10 (0.240)
6.60 (0.260)
1
AC
VCC 8
2
DC+
NC 7
3
DC-
VO 6
4
AC
GND 5
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.
3
Package Outline Drawings, continued
Gull Wing Surface Mount Option 300 (HCPL-3700/3760)
LAND PATTERN RECOMMENDATION
9.65 ± 0.25
(0.380 ± 0.010)
8
TYPE NUMBER
DATE CODE
6
7
1.016 (0.040)
5
A XXXX
6.350 ± 0.25
(0.250 ± 0.010)
YYWW RU
MOLDED
1
3
2
10.9 (0.430)
4
UL
RECOGNITION
9.65 ± 0.25
(0.380 ± 0.010)
1.780
(0.070)
MAX.
1.19
(0.047)
MAX.
2.0 (0.080)
1.27 (0.050)
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)
0.635 ± 0.130
(0.025 ± 0.005)
2.540
(0.100)
BSC
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.
Small Outline SO-8 Package (HCPL-0370)
LAND PATTERN RECOMMENDATION
8
7
6
5
XXX
YWW
3.937 ± 0.127
(0.155 ± 0.005)
5.994 ± 0.203
(0.236 ± 0.008)
TYPE NUMBER
(LAST 3 DIGITS)
7.49 (0.295)
DATE CODE
PIN ONE 1
2
3
0.406 ± 0.076
(0.016 ± 0.003)
4
1.9 (0.075)
1.270 BSC
(0.050)
0.64 (0.025)
* 5.080 ± 0.127
(0.200 ± 0.005)
3.175 ± 0.127
(0.125 ± 0.005)
7°
1.524
(0.060)
45° X
0.432
(0.017)
0 ~ 7°
0.228 ± 0.025
(0.009 ± 0.001)
0.203 ± 0.102
(0.008 ± 0.004)
* 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.
NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.
4
0.305 MIN.
(0.012)
Solder Reflow Thermal Profile
300
TEMPERATURE (¡C)
PREHEATING RATE 3¡C + 1¡C/Ð0.5¡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
PEAK
TEMP.
230¡C
SOLDERING
TIME
200¡C
30
SEC.
3¡C + 1¡C/Ð0.5¡C
100
PREHEATING TIME
150¡C, 90 + 30 SEC.
50 SEC.
TIGHT
TYPICAL
LOOSE
ROOM
TEMPERATURE
0
50
0
100
150
200
250
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
15 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.
Regulatory Information
The HCPL-0370/3700/3760 has been approved by the following organizations:
IEC/EN/DIN EN 60747-5-5 (with option 060)
UL
Maximum Working Insulation Voltage VIORM = 567 Vpeak
for HCPL-0370, and 630 Vpeak for HCPL3700/3760.
Recognized under UL 1577, component recognition
program, File E55361 (HCPL-0370 pending).
Highest Allowable Overvoltage VIOTM = 6000 Vpeak for
HCPL-0370/3700/3760.
CSA
5
Approved under CSA Component Acceptance Notice
#5, File CA 88324.
Insulation and Safety Related Specifications
Symbol
8-Pin DIP
(300 mil)
Value
SO-8
Value
Units
Conditions
Min.. External Air Gap
(External Clearance)
L(IO1)
7.1
4.9
mm
Measured from input terminals to output
terminals, hortest distance through air
Min.. External Tracking
Path (External Creepage)
L(IO2)
7.4
4.8
mm
Measured from input terminals to output
terminals, shortest distance path along body
0.08
0.08
mm
Through insulation distance, conductor to
conductor, usually the direct distance between
the photoemitter and photodetector inside the
optocoupler cavity
200
200
V
DIN IEC 112/VDE 0303 PART 1
Parameter
Min.. Internal Plastic
Gap (Internal Clearance)
Tracking Resistance
(Comparative
Tracking Index)
CTI
Isolation Group
IIIa
Material Group (DIN VDE 0110, 1/89, Table 1)
IEC/EN/DIN EN 60747-5-5 Insulation Related Characteristics [1] (with option 060)
Description
Symbol
Installation classification per DIN VDE 0110/1.89, Table 1
for rated mains voltage ≤ 150 V rms
for rated mains voltage ≤ 300 V rms
for rated mains voltage ≤ 600 V rms
Climatic Classification
Pollution Degree (DIN VDE 0110/1.89)
HCPL-0370
HCPL-3700/3760
I-IV
I-IV
I-III
I-IV
I-IV
I-III
55/85/21
55/85/21
Units
2
2
Maximum Working Insulation Voltage
VIORM
567
630
V peak
Input to Output Test Voltage, Method b
VIORM x 1.875 = VPR, 100% Production Test with tm = 1 sec
Partial Discharge < 5 pC
VPR
1063
1181
V peak
Input to Output Test Voltage, Method a
VIORM x 1.6 = VPR, Type and sample test, tm = 10 sec,
Partial Discharge < 5 pC
VPR
907
1008
V peak
Highest Allowable Overvoltage
(Transient Overvoltage, tini = 60 sec)
VIOTM
6000
6000
V peak
Safety Limiting Values
(Maximum values allowed in the event of a failure)
Case Temperature
Input Current [2]
Output Power [2]
TS
IS,INPUT
PS,OUTPUT
150
150
600
175
230
600
°C
mA
mW
Insulation Resistance at TS, VIO = 500 V
RS
109
109
W
Notes:
1. Insulation characteristics are guaranteed only within the safety maximum ratings, which must be ensured by protective circuits within the
application.
2. Safety-limiting parameters are dependent on case temperature. The Input Current, IS,INPUT, derates linearly above 25°C free-air case temperature
at a rate of 1.2 mA/°C and 1.53 mA/°C for HCPL-0370 and HCPL-3700/3760 respectively; the Output Power, PS,OUTPUT, derates linearly above 25°C
free-air case temperature at a rate of 4.8 mW/°C and 4 mW/°C for HCPL-0370 and HCPL-3700/3760 respectively.
6
Absolute Maximum Ratings (No derating required up to 70°C)
Parameter
Symbol
Min.
Max.
Units
Storage Temperature
TS
-55
125
°C
Operating Temperature
TA
-40
85
°C
Lead Soldering Cycle
Temperature
260
°C
Time
10
s
Input Current
Average
50
Surge
IIN
140
Transient
500
Input Voltage (Pins 2-3)
VIN
-0.5
Input Power Dissipation
HCPL-3700/3760
PIN
HCPL-0370
172
Total Package Power Dissipation
HCPL-3700/3760
PT
305
HCPL-0370
275
Output Power Dissipation
HCPL-3700/3760
PO
210
HCPL-0370
103
Output Current
Average
IO
Supply Voltage (Pins 8-5)
VCC
Output Voltage (Pins 6-5)
VO
230
1
2
mA
2, 3
V
mW
4
mW
5
mW
6
30
mA
7
-0.5
20
V
-0.5
20
V
Solder Reflow Temperature Profile See Package Outline Drawings section
Recommended Operating Conditions
Parameter
Symbol
Min.
Max.
Units
Supply Voltage
VCC
2
18
V
Operating Temperature
TA
0
70
°C
Operating Frequency
f
0
4
kHz
7
Note
Note
8
Electrical Specifications
Over Recommended Temperature TA = 0°C to 70°C, Unless Otherwise Specified.
Parameter
Sym.
Device
Min.
Typ.[9]
Max.
Units Conditions
Fig.
Note
Input
Threshold
Current
ITH+
HCPL-0370/3700
1.96
2.5
3.11
mA
2, 3
14
HCPL-3760
0.87
1.2
1.56
HCPL-0370/3700
1.00
1.3
1.62
HCPL-3760
0.43
0.6
0.80
ITH-
VIN = V TH+; VCC = 4.5 V;
VO = 0.4 V; IO ≥ 4.2 mA
VIN = V TH-; VCC = 4.5 V;
VO = 2.4 V; IOH ≤ 100 µA
Input
DC
Threshold (Pins
Voltage 2, 3)
VTH+
3.35
3.7
4.05
V
VIN = V2 - V3; Pins 1 & 4 Open
VCC = 4.5 V; VO = 0.4 V;
IO ≥ 4.2 mA
VTH-
2.01
2.6
2.86
V
VIN = V2 - V3; Pins 1 & 4 Open
VCC = 4.5 V; VO = 2.4 V;
IO ≤ 100 µA
AC
(Pins
1, 4)
VTH+
4.23
4.9
5.50
V
VIN = |V1 - V4|;
Pins 2 & 3 Open
VCC = 4.5 V; VO = 0.4 V;
IO ≥ 4.2 mA
VTH-
2.87
3.7
4.20
V
VIN = |V1 - V4|;
Pins 2 & 3 Open
VCC = 4.5 V; VO = 2.4 V;
IO ≤ 100 µA
mA
IHYS = ITH+ – ITH-
V
VHYS = V TH+ – V TH-
Hysteresis
IHYS
HCPL-0370/3700
1.2
HCPL-3760
0.6
VHYS
Input Clamp
Voltage
Input Current
Bridge Diode
Forward Voltage
VIHC1
5.4
6.0
6.6
V
VIHC1 = V2 - V3; V3 = GND;
IIN = 10 mA; Pins 1 & 4
Connected to Pin 3
VIHC2
6.1
6.7
7.3
V
VIHC2 = |V1 - V4|;
|IIN| = 10 mA;
Pins 2 & 3 Open
VIHC3
12.0
13.4
V
VIHC3 = V2 - V3; V3 = GND;
IIN = 15 mA; Pins 1 & 4 Open
VILC
-0.76
V
VILC = V2 - V3; V3 = GND;
IIN = -10 mA
mA
VIN = V2 – V3 = 5.0 V
Pins 1 & 4 Open
V
IIN = 3 mA
IIN
VD1,2
VD3,4
Logic Low
Output Voltage
VOL
Logic High
Output Current
IOH
Logic Low
Supply Current
ICCL
Logic High
Supply Current
Input
Capacitance
8
1.2
HCPL-0370/3700
3.0
3.7
4.4
HCPL-3760
1.5
1.8
2.2
HCPL-0370/3700
0.59
HCPL-3760
0.51
IIN = 1.5 mA
HCPL-0370/3700
0.74
IIN = 3 mA
HCPL-3760
0.71
IIN = 1.5 mA
0.1
0.4
V
VCC = 4.5 V; IOL = 4.2 mA
100
µA
VOH = VCC = 18 V
mA
V2 – V3 = 5.0 V; VO = Open;
HCPL-0370/3700
1.2
4
HCPL-3760
0.7
3
ICCH
0.002
4
CIN
50
14, 15
2
1
5
5
14
14
6
VCC = 5.0 V
µA
VCC = 18 V; VO = Open
pF
f = 1 MHz; VIN = 0 V,
Pins 2 & 3, Pins 1 & 4 Open
4
14
Switching Specifications
TA = 25°C, VCC = 5.0 V, Unless Otherwise Specified.
Parameter
Sym.
Device
Min.
Typ.
Max.
Units Test Conditions
Fig.
Propagation Delay
HCPL-0370/3700
4.0
Time to Logic Low
tPHL
15.0
µs
RL = 4.7 kW, CL = 30 pF
at Output
HCPL-3760
4.5
7, 10
Propagation Delay
HCPL-0370/3700
10.0
Time to Logic High
tPLH
40.0
µs
RL = 4.7 kW, CL = 30 pF
at Output
HCPL-3760
8.0
HCPL-0370/3700
20
Output Rise Time
tr
µs
RL = 4.7 kW, CL = 30 pF
(10-90%)
HCPL-3760
14
8
HCPL-0370/3700
0.3
Output Fall Time
tf
µs
RL = 4.7 kW, CL = 30 pF
(90-10%)
HCPL-3760
0.4
Common Mode
IIN = 0 mA, RL = 4.7 kW,
Transient Immunity |CMH|
4000
V/µs VO min = 2.0 V, VCM = 1400 V
at Logic High Output
Common Mode
HCPL-0370/3700
IIN = 3.11 mA RL = 4.7 kW,
Transient Immunity |CML|
600
V/µs
VO max = 0.8 V,
at Logic Low Output
HCPL-3760
IIN = 1.56 mA VCM = 140 V
Note
10
11
9, 11 12, 13
Package Characteristics
Over Recommended Temperature TA = 0°C to 70°C, Unless Otherwise Specified.
Parameter
Sym.
Min.
Typ.[9]
Max. Units Conditions
Fig.
Input-Output Momentary
VISO
3750
V rms RH 50%, t = 1 min;
Withstand Voltage*
TA = 25°C
Option 020
5000
Input-Output Resistance
RI-O
1012
W
VI-O = 500 Vdc
Input-Output Capacitance
CI-O
0.6
pF
f = 1 MHz; VI-O = 0 Vdc
Note
16,
17
18
16
*The Input-Output Momentary Withstand Voltage is a dielectric voltage rating that should not be interpreted as an input-output continuous voltage rating. For the continuous voltage rating refer to the IEC/EN/DIN EN 60747-5-5 Insulation Characteristics Table (if applicable), your equipment
level safety specification, or Avago Application Note 1074, “Optocoupler Input-Output Endurance Voltage.”
9
Notes:
1. Measured at a point 1.6 mm below seating plane.
2. Current into/out of any single lead.
3. Surge input current duration is 3 ms at 120 Hz pulse repetition rate. Transient input current duration is 10 µs at 120 Hz pulse repetition rate.
Note that maximum input power, PIN, must be observed.
4. Derate linearly above 70°C free-air temperature at a rate of 4.1 mW/°C (HCPL-3700/3760) and 3.1 mW/°C (HCPL-0370). Maximum input power
dissipation of 230 mW (HCPL-3700/3760) and 172 mW (HCPL-0370) allows an input IC junction temperature of 125°C at an ambient temperature of TA = 70°C. Excessive PIN and TJ may result in IC chip degradation.
5. Derate linearly above 70°C free-air temperature at a rate of 5.4 mW/°C (HCPL-3700/3760) and 5 mW/°C (HCPL-0370).
6. Derate linearly above 70°C free-air temperature at a rate of 3.9 mW/°C (HCPL-3700/3760) and 1.9 mW/°C (HCPL-0370). Maximum output
power dissipation of 210 mW (HCPL-3700/3760) and 103 mW (HCPL-0370) allows an output IC junction temperature of 125°C at an ambient
temperature of TA = 70°C.
7. Derate linearly above 70°C free-air temperature at a rate of 0.6 mA/°C.
8. Maximum operating frequency is defined when output waveform Pin 6 obtains only 90% of VCC with RL = 4.7 kΩ, CL = 30 pF using a 5 V square
wave input signal.
9. All typical values are at TA = 25°C, VCC = 5.0 V unless otherwise stated.
10. The tPHL propagation delay is measured from the 2.5 V level of the leading edge of a 5.0 V input pulse (1 µs rise time) to the 1.5 V level on the
leading edge of the output pulse (see Figure 10).
11. The tPLH propagation delay is measured from the 2.5 V level of the trailing edge of a 5.0 V input pulse (1 µs fall time) to the 1.5 V level on the
trailing edge of the output pulse (see Figure 10).
12. Common mode transient immunity in Logic High level is the maximum tolerable (positive) dVCM/dt on the leading edge of the common
mode pulse, VCM, to insure that the output will remain in a Logic High state (i.e., VO > 2.0 V). Common mode transient immunity in Logic Low
level is the maximum tolerable (negative) dVCM/dt on the trailing edge of the common mode pulse signal, VCM, to insure that the output will
remain in a Logic Low state (i.e., VO < 0.8 V). See Figure 11.
13. In applications where dVCM/dt may exceed 50,000 V/µs (such as static discharge), a series resistor, RCC, should be included to protect the detector IC from destructively high surge currents. The recommended value for RCC is 240 ý per volt of allowable drop in VCC (between Pin 8 and
VCC) with a minimum value of 240 ý.
14. Logic low output level at Pin 6 occurs under the conditions of VIN ž V TH+ as well as the range of VIN > V TH– once VIN has exceeded V TH+. Logic high
output level at Pin 6 occurs under the conditions of VIN V TH- as well as the range of VIN < V TH+ once VIN has decreased below V TH-.
15. AC voltage is instantaneous voltage.
16. Device considered a two terminal device: Pins 1, 2, 3, 4 connected together, and Pins 5, 6, 7, 8 connected together.
17. In accordance with UL 1577, each optocoupler is proof tested by applying an insulation test voltage ≥ 4500 V rms for 1 second (leakage
detection current limit, Ii-o ≤
5 µA).
18. In accordance with UL 1577, each optocoupler is proof tested by applying an insulation test voltage ≥ 6000 V rms for 1 second (leakage
detection current limit, Ii-o ≤
5 µA). This test is performed before the 100% production test for partial discharge (Method b) shown in the IEC/
EN/DIN EN 60747-5-5 Insulation Characteristics Table.
Figure 1. Typical input characteristics, IIN vs. VIN
(AC voltage is instantaneous value).
Input Signal
Device
TH+
TH–
Input Connection
ITH
HCPL-0370/3700
2.5 mA
1.3 mA
PINS 2, 3 OR 1, 4
HCPL-3760
1.2 mA
0.6 mA
V TH(DC)
ALL
3.7 V
2.6 V
PINS 2, 3
V TH(AC)
ALL
4.9 V
3.7 V
PINS 1, 4
Figure 2. Typical transfer characteristics.
10
4.0
3.0
4.0
3.8
2.8
2.6
3.4
2.4
ITH+
2.2
3.0
2.0
2.8
1.8
VTH-
2.6
1.6
2.4
1.4
ITH-
2.2
1.2
2.0
1.8
1.0
-40
-20
0
20
40
60
80
0.8
1.5
3.8
1.4
VTH+
3.6
1.3
ITH+
3.4
1.2
3.2
1.1
3.0
1.0
VTH-
2.8
0.9
2.6
0.8
2.4
0.7
ITH-
2.2
0.6
2.0
0.5
1.8
-40 -25
TA – TEMPERATURE – °C
0
25
3.8
200
180
IIN
160
VIN = 5.0 V
(PINS 2, 3)
VCC = 5.0 V
3.0
2.8
140
120
100
VOL
2.6
80
VCC = 5.0 V
IOL = 4.2 mA
2.4
60
2.2
40
2.0
20
1.8
0
-40
-20
0
20
40
60
80
IIN – INPUT CURRENT – mA
220
VOL – LOW LEVEL OUTPUT VOLTAGE – mV
IIN – INPUT CURRENT – mA
4.0
240
2.0
220
1.9
200
1.8
180
IIN
160
VIN = 5.0 V
(PINS 2, 3)
VCC = 5.0 V
1.6
1.5
1.4
140
120
100
VOL
1.3
80
VCC = 5.0 V
IOL = 4.2 mA
1.2
60
1.1
40
1.0
20
0.9
-40 -25
TA – TEMPERATURE – °C
0
25
50
75 85
0
TA – TEMPERATURE – °C
Figure 5. Typical input current, IIN, and low level output voltage, VOL, vs. temperature.
HCPL-3700 fig 5b
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0
4.0
HCPL-3760
ICCL – LOGIC LOW SUPPLY CURRENT – mA
ICCL – LOGIC LOW SUPPLY CURRENT – mA
HCPL-0370/3700
4.00
6.0
8.0
10.0 12.0 14.0 16.0 18.0 20.0
3.00
2.50
2.00
1.50
1.00
0.50
0
4.0
VCC – SUPPLY VOLTAGE – V
6.0
8.0
10.0 12.0 14.0 16.0 18.0 20.0
VCC – SUPPLY VOLTAGE – V
Figure 6. Typical logic low supply current vs. supply voltage.
HCPL-370 fig 6b
11
ICCH
VCC = 18 V
VO = OPEN
IIN = 0 mA
10-1
10-2
ICCH
10-3
10-4
10-5
-40 -25
0
25
50
75 85
Figure 4. Typical high level supply current, ICCH vs.
HCPL-3700 fig 4
temperature.
2.1
1.7
100
TA – TEMPERATURE – °C
HCPL-3760
240
3.2
0.4
HCPL-3700 fig 3b
HCPL-0370/3700
4.2
3.4
75 85
TA – TEMPERATURE – °C
Figure 3. Typical DC threshold levels vs. temperature.
3.6
50
VOL – LOW LEVEL OUTPUT VOLTAGE – mV
3.2
VTH – VOLTAGE THRESHOLD – V
VTH+
3.6
1.6
ITH – CURRENT THRESHOLD – mA
4.2
ICCH – HIGH LEVEL SUPPLY CURRENT – µA
HCPL-3760
3.2
ITH – CURRENT THRESHOLD – mA
VTH – VOLTAGE THRESHOLD – V
HCPL-0370/3700
4.2
HCPL-0370/3700
22
20
tp – PROPAGATION DELAY – µs
HCPL-3760
24
RL = 4.7 kΩ
CL = 30 pF
VCC = 5.0 V
5.0 V
VIN = 1 ms PULSE WIDTH
f = 100 Hz
tr, tf = 1 µs (10-90%)
18
16
14
22
tp – PROPAGATION DELAY – µs
24
tPLH
12
10
8
6
tPHL
4
2
20
18
16
14
RL = 4.7 kΩ
CL = 30 pF
VCC = 5.0 V
5.0 V
VIN = 1 ms PULSE WIDTH
f = 100 Hz
tr, tf = 1 µs (10-90%)
tPLH
12
10
8
6
4
tPHL
2
0
-40
-20
0
20
40
60
0
80
-40 -25
TA – TEMPERATURE – °C
0
25
50
75 85
TA – TEMPERATURE – °C
Figure 7. Typical propagation delay vs. temperature.
HCPL-3700 fig 7b
HCPL-0370/3700
700
500
25
600
20
500
400
30
300
tr
20
200
tf
10
0
-40
-20
0
20
40
60
80
15
10
tr
100
5
0
0
TA – TEMPERATURE – °C
tf
-40 -25
VIN =
0
RL = 4.7 kΩ
CL = 30 pF
VCC = 5.0 V
5.0 V
1 ms PULSE WIDTH
f = 100 Hz
tr, tf = 1 µs (10-90%)
25
50
TA – TEMPERATURE – °C
Figure 8. Typical rise, fall times vs. temperature.
CM – COMMON MODE TRANSIENT IMMUNITY – V/ µs
HCPL-3700 fig 8b
5000
VCC = 5.0 V
IIN = 3.11 mA (0370/3700)
IIN = 1.53 mA (3760)
VOL = 0.8 V
RL = 4.7 kΩ
TA = 25 °C
4000
3000
CML
2000
1000
VCC = 5.0 V
IIN = 0 mA
VOH = 2.0 V
RL = 4.7 kΩ
TA = 25 °C
CMH
500
0
0
400
800
1200
1600
2000
VCM – COMMON MODE TRANSIENT AMPLITUDE – V
Figure 9. Common mode transient immunity
vs. common mode transient amplitude.
12
75 85
400
300
200
100
tf – FALL TIME – ns
40
30
tr – RISE TIME – µs
RL = 4.7 kΩ
CL = 30 pF
VCC = 5.0 V
5.0 V
VIN = 1 ms PULSE WIDTH
f = 100 Hz
tr, tf = 1 µs (10-90%)
50
tr – RISE TIME – µs
HCPL-3760
600
tf – FALL TIME – ns
60
Figure 10. Switching test circuit.
Figure 11. Test circuit for common mode transient immunity and typical waveforms.
Figure 12. Typical external threshold characteristics, V ± vs. RX.
13
For interfacing ac signals to TTL systems, output low
pass filtering can be performed with a pullup resistor of
1.5 kW and 20 µF capacitor. This application requires a
Schmitt trigger gate to avoid slow rise time chatter problems. For ac input applications, a filter capacitor can be
placed across the dc input terminals for either signal or
transient filtering.
Figure 13. External threshold voltage level selection.
Either ac (Pins 1, 4) or dc (Pins 2, 3) input can be used to
determine external threshold levels.
Electrical Considerations
For one specifically selected external threshold voltage
level V+ or V-, RX can be determined without use of RP via
The HCPL-0370/3700/3760 optocouplers have internal
temperature compensated, predictable voltage and current threshold points which allow selection of an external resistor, RX, to determine larger external threshold
voltage levels. For a desired external threshold voltage,
V±, a corresponding typical value of RX can be obtained
from Figure 12. Specific calculation of RX can be obtained
from Equation (1). Specification of both V+ and V- voltage
threshold levels simultaneously can be obtained by the
use of RX and RP as shown in Figure 13 and determined by
Equations (2) and (3).
RX can provide over-current transient protection by
limiting input current during a transient condition.
For monitoring contacts of a relay or switch, the HCPL0370/3700/3760 in combination with RX and RP can be
used to allow a specific current to be conducted through
the contacts for cleaning purposes (wetting current).
The choice of which input voltage clamp level to choose
depends upon the application of this device (see Figure
1). It is recommended that the low clamp condition be
used when possible.
The low clamp condition in conjunction with the low
input current feature will ensure extremely low input
power dissipation.
In applications where dVCM/dt may be extremely large
(such as static discharge), a series resistor, RCC, should
be connected in series with VCC and Pin 8 to protect the
detector IC from destructively high surge currents. See
Note 13 for determination of RCC. In addition, it is recom
mended that a ceramic disc bypass capacitor of 0.01 µF
be placed between Pins 8 and 5 to reduce the effect of
power supply noise.
For product information and a complete list of distributors, please go to our website:
V+ - V TH+
(-) (-)
RX =
ITH+
(-)
(1)
For two specifically selected external threshold voltage
levels, V+ and V-, the use of RX and RP will permit this selection via equations (2), (3) provided the following conditions are met. If the denominator of equation (2) is positive, then
V+ V TH+ V+ - V TH+ ITH+
≥ and
<
V- V TH-
V- - V TH- ITHConversely, if the denominator of
equation (2) is negative, then
V+ V TH+ V+ - V TH+ ITH+
≤ and
>
V- V TH-
V- - V TH- ITH
V TH- (V+) - V TH+ (V-)
RX =
ITH+ (V TH-) - ITH- (V TH+)
(2)
V TH- (V+) - V TH+ (V-)
RP =
ITH+(V--V TH-)+ITH-(V TH+-V+)
(3)
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Data subject to change. Copyright © 2005-2009 Avago Technologies. All rights reserved. Obsoletes AV01-0542EN
AV02-2107EN - September 2, 2009
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