Datasheet

ManualsBrandsBROADCOM ManualsOptoelectronics & DisplaysApplication-specific Optocoupler DIP 8 SMD Type (misc.) AC/DC to Logic Interface-Coupler

Description

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.

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.

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.

Functional Diagram

DC+

DC-

GND

TRUTH TABLE

(POSITIVE LOGIC)

INPUT

OUTPUT

HCPL-0370, HCPL-3700, HCPL-3760

AC/DC to Logic Interface Optocouplers

Data Sheet

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

• Microprocessorinterfacing

HCPL-0370/3700/3760

Summary of content (14 pages)

PAGE 1
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 HCPL3760 is a low-current version of the HCPL-0370/ 3700. To obtain lower current operation, the HCPL3760 uses a high-efficiency AlGaAs LED which provides higher light output at lower drive currents.
PAGE 2
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 high gain output stage features an open collector output providing both TTL compatible saturation voltages and CMOS compatible breakdown voltages. 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 +).
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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.
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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.
PAGE 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) Note: Non-halide flux should be used.
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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.
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Electrical Specifications Over Recommended Temperature TA = 0°C to 70°C, Unless Otherwise Specified. Parameter Input Threshold Current Device ITH+ HCPL-0370/3700 1.96 2.5 3.11 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 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 VTH+ 4.23 4.9 5.
PAGE 8
Switching Specifications TA = 25°C, VCC = 5.0 V, Unless Otherwise Specified. Parameter Propagation Delay Time to Logic Low at Output Sym. 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 Output Rise Time (10-90%) tPLH 40.0 tr µs RL = 4.
PAGE 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).
PAGE 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 3.6 180 IIN 160 VIN = 5.0 V (PINS 2, 3) VCC = 5.0 V 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.
PAGE 11
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 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.
PAGE 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.
PAGE 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).
PAGE 14
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