HP HCPL-3760-XXXE Ac/dc to logic interface optocoupler Datasheet

AC/DC to Logic Interface
Optocouplers
Technical Data
HCPL-0370
HCPL-3700
HCPL-3760
Features
Description
• 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
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.
HCPL-0370/3700/3760
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
Functional Diagram
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
VCC
DC+ 2
7
NC
DC- 3
6
VO
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.
2
diodes to protect the buffer and
LED from a wide range of overvoltage 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.
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
(VTH +).
The high gain output stage
features an open collector output
providing both TTL compatible
The HCPL-0370/3700's input
buffer IC has a nominal turn on
threshold of 2.5 mA (ITH +) and
3.7 volts (VTH +).
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
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 Agilent 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
3
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
7.36 (0.290)
7.88 (0.310)
YYWW RU
PIN ONE
1
2
3
0.20 (0.008)
0.33 (0.013)
6.10 (0.240)
6.60 (0.260)
4
5° TYP.
UL
RECOGNITION
1.78 (0.070) MAX.
1.19 (0.047) MAX.
3.56 ± 0.13
(0.140 ± 0.005)
4.70 (0.185) MAX.
0.51 (0.020) MIN.
2.92 (0.115) MIN.
1
AC
VCC 8
2
DC+
NC 7
3
DC-
VO 6
4
AC
GND 5
0.65 (0.025) MAX.
0.76 (0.030)
1.40 (0.056)
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
1.016 (0.040)
5
TYPE NUMBER
DATE CODE
A XXXX
6.350 ± 0.25
(0.250 ± 0.010)
YYWW RU
MOLDED
1
2
3
4
UL
RECOGNITION
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)
2.540
(0.100)
BSC
2.0 (0.080)
9.65 ± 0.25
(0.380 ± 0.010)
1.780
(0.070)
MAX.
1.19
(0.047)
MAX.
10.9 (0.430)
0.635 ± 0.130
(0.025 ± 0.005)
0.635 ± 0.25
(0.025 ± 0.010)
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.
12° NOM.
4
Package Outline Drawings, continued
Small Outline SO-8 Package (HCPL-0370)
LAND PATTERN RECOMMENDATION
8
7
6
5
5.994 ± 0.203
(0.236 ± 0.008)
XXX
YWW
3.937 ± 0.127
(0.155 ± 0.005)
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°
45° X
0.432
(0.017)
0 ~ 7°
0.228 ± 0.025
(0.009 ± 0.001)
1.524
(0.060)
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.
0.305 MIN.
(0.012)
5
Solder Reflow Thermal Profile
300
TEMPERATURE (°C)
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
200
2.5°C ± 0.5°C/SEC.
SOLDERING
TIME
200°C
30
SEC.
160°C
150°C
140°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
200
TIME (SECONDS)
Recommended Pb-Free IR Profile
tp
Tp
TEMPERATURE
TL
Tsmax
TIME WITHIN 5 °C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
260 +0/-5 °C
217 °C
RAMP-UP
3 °C/SEC. MAX.
150 - 200 °C
RAMP-DOWN
6 °C/SEC. MAX.
Tsmin
ts
PREHEAT
60 to 180 SEC.
tL
60 to 150 SEC.
25
t 25 °C to PEAK
TIME
NOTES:
THE TIME FROM 25 °C to PEAK TEMPERATURE = 8 MINUTES MAX.
Tsmax = 200 °C, Tsmin = 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.
250
6
Insulation and Safety Related Specifications
Symbol
8-Pin DIP
(300 mil)
Value
SO-8
Value
Units
Min.. External Air Gap
(External Clearance)
L(IO1)
7.1
4.9
mm
Measured from input terminals to output
sterminals, 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
Parameter
Min.. Internal Plastic
Gap (Internal Clearance)
Tracking Resistance
(Comparative
Tracking Index)
CTI
Isolation Group
Conditions
DIN IEC 112/VDE 0303 PART 1
IIIa
Material Group (DIN VDE 0110, 1/89, Table 1)
Absolute Maximum Ratings (No derating required up to 70°C)
Parameter
Storage Temperature
Operating Temperature
Lead Soldering Cycle
Input Current
Input Voltage (Pins 2-3)
Input Power Dissipation
Total Package Power Dissipation
Output Power Dissipation
Output Current
Supply Voltage (Pins 8-5)
Output Voltage (Pins 6-5)
Solder Reflow Temperature Profile
Symbol
TS
TA
Temperature
Time
Average
Surge
Transient
Min.
-55
-40
Max.
125
85
260
10
50
140
500
IIN
VIN
PIN
HCPL-3700/3760
HCPL-0370
HCPL-3700/3760
HCPL-0370
HCPL-3700/3760
HCPL-0370
Average
Units
°C
°C
°C
s
-0.5
230
172
PT
305
275
PO
210
103
IO
30
VCC
-0.5
20
VO
-0.5
20
See Package Outline Drawings section
Note
1
mA
2
2, 3
V
mW
4
mW
5
mW
6
mA
V
V
7
Recommended Operating Conditions
Parameter
Symbol
Min.
Max.
Units
Supply Voltage
VCC
2
18
V
Operating Temperature
TA
0
70
°C
f
0
4
kHz
Operating Frequency
Note
8
7
Electrical Specifications
Over Recommended Temperature TA = 0°C to 70°C, Unless Otherwise Specified.
Parameter
Input Threshold
Current
Sym.
Device
Min. Typ.[9] Max. Units
ITH+ HCPL-0370/3700 1.96
2.5
HCPL-3760
0.87
1.2
1.56
ITH- HCPL-0370/3700 1.00
1.3
1.62
HCPL-3760
3.11
mA
Conditions
VIN = VTH+; VCC = 4.5 V;
VO = 0.4 V; IO ≥ 4.2 mA
0.43
0.6
0.80
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
VTH+
(Pins 1, 4)
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
IHYS HCPL-0370/3700
1.2
HCPL-3760
Input Current
Bridge Diode
Forward Voltage
mA
IHYS = ITH+ – ITH-
1.2
V
VHYS = VTH+ – VTH-
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
IIN
HCPL-0370/3700
3.0
3.7
4.4
HCPL-3760
1.5
1.8
2.2
VD1,2 HCPL-0370/3700
HCPL-3760
VD3,4 HCPL-0370/3700
HCPL-3760
Logic Low Output
Voltage
VOL
Logic High
Output Current
IOH
Logic Low Supply
Current
ICCL HCPL-0370/3700
Logic High Supply
Current
Input Capacitance
0.59
mA
V
VIN = V2 – V3 = 5.0 V
Pins 1 & 4 Open
14, 15
2
1
5
IIN = 3 mA
0.51
IIN = 1.5 mA
0.74
IIN = 3 mA
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
1.2
4
mA
V2 – V3 = 5.0 V; VO = Open;
0.7
3
ICCH
0.002
4
CIN
50
HCPL-3760
14
0.6
VHYS
Input Clamp Voltage
2, 3
VIN = VTH-; VCC = 4.5 V;
VO = 2.4 V; IOH ≤ 100 µA
Input
DC
VTH+
Threshold (Pins 2, 3)
Voltage
Hysteresis
Fig. Note
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
8
Switching Specifications
TA = 25°C, VCC = 5.0 V, Unless Otherwise Specified.
Parameter
Sym.
Propagation Delay
Time to Logic Low
at Output
Device
Min.
Typ.
HCPL-0370/3700
4.0
HCPL-3760
4.5
HCPL-0370/3700
10.0
HCPL-3760
8.0
HCPL-0370/3700
20
HCPL-3760
14
HCPL-0370/3700
0.3
HCPL-3760
0.4
tPHL
Max.
Units
15.0
µs
Test Conditions
Fig.
RL = 4.7 kΩ, CL = 30 pF
Note
10
7, 10
Propagation Delay
Time to Logic High
at Output
tPLH
Output Rise Time
(10-90%)
40.0
tr
µs
RL = 4.7 kΩ, CL = 30 pF
µs
RL = 4.7 kΩ, CL = 30 pF
11
8
Output Fall Time
(90-10%)
Common Mode
Transient Immunity
at Logic High Output
µs
tf
|CMH|
4000
V/µs
RL = 4.7 kΩ, CL = 30 pF
IIN = 0 mA, RL = 4.7 kΩ,
VO min = 2.0 V, VCM = 1400 V
9, 11
Common Mode
Transient Immunity
at Logic Low Output
IIN = 3.11 mA
HCPL-0370/3700
|CML|
600
V/µs
HCPL-3760
IIN = 1.56 mA
12, 13
RL = 4.7 kΩ,
VO max = 0.8 V,
VCM = 140 V
Package Characteristics
Over Recommended Temperature TA = 0°C to 70°C, Unless Otherwise Specified.
Min. Typ.[9] Max. Units
Parameter
Sym.
Input-Output Momentary
Withstand Voltage*
Option 020
VISO
Input-Output Resistance
RI-O
1012
Input-Output Capacitance
CI-O
0.6
3750
Conditions
Fig. Note
RH ≤ 50%, t = 1 min;
TA = 25°C
16,
17
18
Ω
VI-O = 500 Vdc
16
pF
f = 1 MHz; VI-O = 0 Vdc
V rms
5000
*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 60747-5-2 Insulation Characteristics Table (if
applicable), your equipment level safety specification, or Agilent 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 Ω per volt of allowable drop
in VCC (between Pin 8 and VCC) with a minimum value of 240 Ω.
14. Logic low output level at Pin 6 occurs under the conditions of VIN ≥ VTH+ as well as the range of VIN > VTH– once VIN has exceeded
VTH+. Logic high output level at Pin 6 occurs under the conditions of VIN ≤ VTH- as well as the range of VIN < VTH+ once VIN has
decreased below VTH-.
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 60747-5-2 Insulation Characteristics Table.
DEVICE
ITH
Figure 1. Typical Input
Characteristics, IIN vs. VIN (AC Voltage
is Instantaneous Value).
Figure 2. Typical Transfer Characteristics.
TH+
TH–
HCPL-0370/3700 2.5 mA 1.3 mA
HCPL-3760
1.2 mA 0.6 mA
INPUT
CONNNECTION
PINS 2, 3
OR 1, 4
VTH(dc)
ALL
3.7 V
2.6 V
PINS 2, 3
VTH(ac)
ALL
4.9 V
3.7 V
PINS 1, 4
10
1.6
4.0
3.0
4.0
1.5
3.8
2.8
VTH+
2.6
3.4
2.4
ITH+
3.2
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
1.0
1.8
0.8
-40
-20
0
20
40
60
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
80
0.4
-40 -25
TA – TEMPERATURE – °C
0
25
50
3.8
200
180
IIN
160
VIN = 5.0 V
(PINS 2, 3)
VCC = 5.0 V
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
10-4
10-5
-40 -25
60
2.1
240
2.0
220
1.9
200
1.8
180
IIN
1.7
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
80
0
-40 -25
TA – TEMPERATURE – °C
0
25
50
75 85
TA – TEMPERATURE – °C
Figure 5. Typical Input Current, IIN, and Low Level Output Voltage, VOL, vs. Temperature.
HCPL-3760
ICCL – LOGIC LOW SUPPLY CURRENT – mA
ICCL – LOGIC LOW SUPPLY CURRENT – mA
HCPL-0370/3700
4.00
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0
4.0
6.0
8.0
0
25
50
75 85
Figure 4. Typical High Level Supply
Current, ICCH vs. Temperature.
IIN – INPUT CURRENT – mA
220
VOL – LOW LEVEL OUTPUT VOLTAGE – mV
IIN – INPUT CURRENT – mA
4.0
3.0
10-3
HCPL-3760
240
ICCH
TA – TEMPERATURE – °C
HCPL-0370/3700
3.2
10-2
TA – TEMPERATURE – °C
4.2
3.4
ICCH
VCC = 18 V
VO = OPEN
IIN = 0 mA
10-1
75 85
Figure 3. Typical DC Threshold Levels vs. Temperature.
3.6
100
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.
3.00
2.50
2.00
1.50
1.00
0.50
0
4.0
6.0
8.0
10.0 12.0 14.0 16.0 18.0 20.0
VCC – SUPPLY VOLTAGE – V
VOL – LOW LEVEL OUTPUT VOLTAGE – mV
3.6
ITH – CURRENT THRESHOLD – mA
4.2
ICCH – HIGH LEVEL SUPPLY CURRENT – µA
HCPL-3760
3.2
ITH – CURRENT THRESHOLD – mA
VTH – VOLTAGE THRESHOLD – V
VTH – VOLTAGE THRESHOLD – V
HCPL-0370/3700
4.2
11
HCPL-0370/3700
22
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%)
20
18
16
22
tp – PROPAGATION DELAY – µs
24
tPLH
14
12
10
8
6
tPHL
4
2
20
18
16
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
14
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-0370/3700
30
700
500
25
600
20
500
400
30
300
tr
20
200
15
400
tf
10
tr
tf
10
0
-40
-20
0
20
40
60
100
5
0
0
80
CM – COMMON MODE TRANSIENT IMMUNITY – V/ µs
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
0
25
50
TA – TEMPERATURE – °C
Figure 8. Typical Rise, Fall Times vs. Temperature.
2000
VCM – COMMON MODE TRANSIENT AMPLITUDE – V
Figure 9. Common Mode Transient Immunity
vs. Common Mode Transient Amplitude.
300
200
100
-40 -25
TA – TEMPERATURE – °C
VIN =
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%)
75 85
tf – FALL TIME – ns
40
600
tr – RISE TIME – µs
50
tr – RISE TIME – µs
HCPL-3760
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%)
tf – FALL TIME – ns
60
12
HCPL-0370/3700/3760
Figure 10. Switching Test Circuit.
HCPL-0370/3700/3760
(0370/3700)
Figure 11. Test Circuit for Common Mode Transient Immunity and Typical Waveforms.
HCPL-0370/3700
VTH+ = 3.7 V
VTH– = 2.6 V
VTH+ = 4.9 V
VTH– = 3.7 V
ITH+ = 2.5 mA
ITH– = 1.3 mA
TA = 25 °C
Figure 12. Typical External Threshold Characteristics, V ± vs. RX.
13
Figure 13. External Threshold Voltage Level Selection.
Electrical Considerations
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
HCPL-0370/3700/3760 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 recommended
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 interfacing ac signals to TTL
systems, output low pass filtering
can be performed with a pullup
resistor of 1.5 kΩ 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.
Either ac (Pins 1, 4) or dc
(Pins 2, 3) input can be used to
determine external threshold
levels.
For one specifically selected
external threshold voltage level
V+ or V-, RX can be determined
without use of RP via
V+ - VTH+
(-) (-)
RX =
(1)
ITH+
(-)
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-
VTH+
and
VTH-
V+ - VTH+
<
V- - VTH-
ITH+
ITH-
Conversely, if the denominator of
equation (2) is negative, then
V+
≤
V-
RX =
VTH+
VTH-
and
V+ - VTH+
>
V- - VTH-
VTH- (V+) - VTH+ (V-)
ITH+
ITH-
(2)
ITH+ (VTH-) - ITH- (VTH+)
VTH- (V+) - VTH+ (V-)
RP =
(3)
ITH+(V--VTH-)+ITH-(VTH+-V+)
www.agilent.com/semiconductors
For product information and a complete list of
distributors, please go to our web site.
For technical assistance call:
Americas/Canada: +1 (800) 235-0312 or
(916) 788-6763
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Taiwan: (+65) 6755 1843
Data subject to change.
Copyright © 2004 Agilent Technologies, Inc.
Obsoletes 5989-0785EN
December 20, 2004
5989-2101EN
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