component
HCPL-0370-500E
Public Made by Adomby adom
Broadcom AVAGO Logic Output Optoisolators, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownHCPL-0370-500E
Broadcom AVAGO · Logic Output Optoisolators · SO-8
HCPL-0370-500E from Broadcom AVAGO, in a SO-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | AC | input | One of the two AC input terminals (with pin 4); the AC threshold is VTH+ 4.9 V typ and VTH- 3.7 V typ, measured as |
| 2 | DC+ | input | Positive DC input terminal (with pin 3); the DC turn-on threshold is VTH+ 3.7 V typ and the turn-off threshold is VTH- 2.6 V typ, with the input current threshold ITH+ 2.5 mA typ for HCPL-0370. |
| 3 | DC- | input | Negative DC input terminal (with pin 2); input voltage is measured as V2 - V3 and the DC input must not exceed the absolute maximum input voltage of -0.5 V on pins 2-3 as printed. |
| 4 | AC | input | Second AC input terminal (with pin 1) for ac signals; the ac input thresholds are the same as for pin 1, VTH+ 4.9 V typ and VTH- 3.7 V typ. |
| 5 | GND | power_in | Ground reference for the detector IC; VCC (pin 8) and output voltage (pin 6) are specified relative to this pin, with VCC absolute maximum of -0.5 V to 20 V. |
| 6 | VO | output | Open-collector logic output referenced to pin 5; logic low VOL is 0.4 V max at VCC = 4.5 V and IOL = 4.2 mA, output voltage absolute maximum is -0.5 V to 20 V, and average output current is 30 mA max. |
| 7 | NC | unconnected | No internal connection on the package. |
| 8 | VCC | power_in | Supply voltage with recommended range 2 V to 18 V (absolute maximum 20 V); a 0.01 µF ceramic bypass capacitor between pins 8 and 5 is recommended to reduce supply noise. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Broadcom AVAGO |
| Package | SO-8 |
| Category | Optoisolators |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | 2 | 18 | V | 7 | ||
| Operating Temperature | TA | 0 | 70 | °C | 7 | ||
| Operating Frequency | f | 0 | 4 | kHz | 7 | ||
| Storage Temperature | TS | -55 | 125 | °C | 7 | ||
| Operating Temperature | TA | -40 | 85 | °C | 7 | ||
| Lead Soldering Cycle Temperature | 260 | °C | Note 1 | 7 | |||
| Lead Soldering Cycle Time | 10 | s | 7 | ||||
| Input Current Average | 50 | mA | 7 | ||||
| Input Current Surge | IIN | 140 | mA | 7 | |||
| Input Voltage (Pins 2-3) | VIN | -0.5 | V | 7 | |||
| Input Power Dissipation (HCPL-0370) | PIN | 172 | mW | 7 | |||
| Total Package Power Dissipation (HCPL-0370) | PT | 275 | mW | 7 | |||
| Output Power Dissipation (HCPL-0370) | PO | 103 | mW | 7 | |||
| Output Current Average | IO | 30 | mA | 7 | |||
| Supply Voltage (Pins 8-5) | VCC | -0.5 | 20 | V | 7 | ||
| Output Voltage (Pins 6-5) | VO | -0.5 | 20 | V | 7 | ||
| Input Threshold Current, rising (HCPL-0370/3700) | ITH+ | 1.96 | 2.5 | 3.11 | mA | VIN = VTH+; VCC = 4.5 V; VO = 0.4 V; IO ≥ 4.2 mA | 8 |
| Input Threshold Current, falling (HCPL-0370/3700) | ITH- | 1 | 1.3 | 1.62 | mA | VIN = VTH-; VCC = 4.5 V; VO = 2.4 V; IOH ≤ 100 µA | 8 |
| Input Threshold Voltage DC, rising (pins 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 | 8 |
| Input Threshold Voltage DC, falling (pins 2,3) | 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 | 8 |
| Input Threshold Voltage AC, rising (pins 1,4) | VTH+ | 4.23 | 4.9 | 5.5 | V | VIN = /V1 - V4/; Pins 2 & 3 Open; VCC = 4.5 V; VO = 0.4 V; IO ≥ 4.2 mA | 8 |
| Input Threshold Voltage AC, falling (pins 1,4) | VTH- | 2.87 | 3.7 | 4.2 | V | VIN = /V1 - V4/; Pins 2 & 3 Open; VCC = 4.5 V; VO = 2.4 V; IO ≤ 100 µA | 8 |
| Input Clamp Voltage 1 | VIHC1 | 5.4 | 6 | 6.6 | V | VIHC1 = V2 - V3; V3 = GND; IIN = 10 mA; Pins 1 & 4 Connected to Pin 3 | 8 |
| Input Clamp Voltage 2 | VIHC2 | 6.1 | 6.7 | 7.3 | V | VIHC2 = /V1 - V4/; /IIN/ = 10 mA; Pins 2 & 3 Open | 8 |
| Input Clamp Voltage 3 | VIHC3 | 12 | 13.4 | V | VIHC3 = V2 - V3; V3 = GND; IIN = 15 mA; Pins 1 & 4 Open | 8 | |
| Input Current (HCPL-0370/3700) | IIN | 3 | 3.7 | 4.4 | mA | VIN = V2 - V3 = 5.0 V; Pins 1 & 4 Open | 8 |
| Logic Low Output Voltage | VOL | 0.1 | 0.4 | V | VCC = 4.5 V; IOL = 4.2 mA | 8 | |
| Logic Low Supply Current (HCPL-0370/3700) | ICCL | 1.2 | 4 | mA | V2 - V3 = 5.0 V; VO = Open; VCC = 5.0 V | 8 | |
| Logic High Supply Current | ICCH | 0.002 | 4 | µA | VCC = 18 V; VO = Open | 8 | |
| Propagation Delay Time to Logic Low (HCPL-0370/3700) | tPHL | 4 | 15 | µs | RL = 4.7 kΩ, CL = 30 pF | 9 | |
| Propagation Delay Time to Logic High (HCPL-0370/3700) | tPLH | 10 | 40 | µs | RL = 4.7 kΩ, CL = 30 pF | 9 | |
| Common Mode Transient Immunity at Logic High Output | /CMH/ | 4000 | V/µs | IIN = 0 mA, RL = 4.7 kΩ, VO min = 2.0 V, VCM = 1400 V | 9 | ||
| Common Mode Transient Immunity at Logic Low Output (HCPL-0370/3700) | /CML/ | 600 | V/µs | IIN = 3.11 mA, RL = 4.7 kΩ, VO max = 0.8 V, VCM = 140 V | 9 | ||
| Input-Output Momentary Withstand Voltage | VISO | 3750 | V rms | RH 50%, t = 1 min; TA = 25°C | 9 |
CAD (KiCad official)
- Symbol:
HCPL-0370-500E - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
hcpl-0370-500e-etched.step/hcpl-0370-500e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hcpl-0370-500e.step/hcpl-0370-500e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Broadcom AVAGO datasheet (14 pp, sha256
0122d32590fa98ef, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).