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LTV-3120

Public Made by Adom

by adom

Lite On Logic Output Optoisolators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LTV-3120

Lite On · Logic Output Optoisolators · DIP-8

LTV-3120 from Lite On, in a DIP-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 NC unconnected No connection; the functional diagram marks this pin NC, and the datasheet gives no function for it.
2 Anode passive AlGaAs LED anode on the input side; average forward input current is limited to 20 mA and reverse input voltage to 5 V (absolute maximum ratings).
3 Cathode passive AlGaAs LED cathode on the input side; LED on-current is specified at 7 to 16 mA (recommended operating condition), with VF(OFF) at 0 to 0.8 V.
4 NC unconnected No connection; the functional diagram marks this pin NC, and the datasheet gives no function for it.
5 GND power_in Output-side ground (VEE reference); a 0.1 µF ceramic bypass capacitor must be connected between pin 5 and pin 8, placed within 1 cm of each pin.
6 Vo output Totem-pole gate drive output; rated for ±3.0 A peak output current and VO(PEAK) of 35 V maximum, with rail-to-rail output swing.
7 Vo output Second output pin, internally tied to pin 6; rated for ±3.0 A peak output current and VO(PEAK) of 35 V maximum.
8 Vcc power_in Positive output-stage supply; recommended operating range is 15 to 30 V, with total supply (VCC-VEE) absolute maximum of 35 V, and a 0.1 µF bypass capacitor to pin 5 is required.

Key specifications

Parameter Value
Manufacturer Lite On
Package DIP-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
Input Forward Voltage VF 1.2 1.37 1.8 V IF = 10mA 7
Input Reverse Voltage BVR 5 V IR = 10μA 7
Input Threshold Current (Low to High) IFLH 1.8 5 mA VCC = 30 V, VO > 5V 7
Input Threshold Voltage (High to Low) VFHL 0.8 V VCC = 30 V, VO < 5V 7
High Level Supply Current ICCH 1.7 3 mA IF = 10 mA, VCC = 30V, VO = Open 7
Low Level Supply Current ICCL 2 3 mA IF = 0 mA, VCC = 30V, VO = Open 7
High level output current (VO = VCC, 1.5 V) IOH -1 A VO = (VCC, 1.5 V) 7
High level output current (VO = VCC, 4 V) IOH -3 A VO = (VCC, 4 V) 7
Low level output current (VO = VEE + 1.5 V) IOL 1 A VO = (VEE + 1.5 V) 7
Low level output current (VO = VEE + 4 V) IOL 3 A VO = (VEE + 4 V) 7
UVLO Threshold (rising) VUVLO+ 11 12.7 13.5 V VO > 5V, IF = 10 mA 7
UVLO Threshold (falling) VUVLO- 9.5 11.2 12 V VO < 5V, IF = 10 mA 7
Propagation Delay Time to High Output Level tPLH 50 500 ns Rg = 10Ω, Cg = 25nF, f = 10 kHz, Duty Cycle = 50%; IF = 7 to 16 mA, VCC = 10 to 30V; VEE = ground 8
Propagation Delay Time to Low Output Level tPHL 50 500 ns Rg = 10Ω, Cg = 25nF, f = 10 kHz, Duty Cycle = 50%; IF = 7 to 16 mA, VCC = 10 to 30V; VEE = ground 8
Pulse Width Distortion PWD 100 ns 8
Propagation delay difference between any two parts or channels PDD -100 100 ns 8
Common mode transient immunity at high level output /CMH/ 35 50 kV/μs TA = 25°C, IF = 10 to 16 mA, VCM = 1500 V, VCC = 30 V 8
Common mode transient immunity at low level output /CML/ 35 50 kV/μs TA = 25°C, VF = 0 V, VCM = 1500 V, VCC = 30 V 8
Withstand Insulation Test Voltage VISO 5000 V RH ≤ 40%-60%, t = 1min, TA = 25 oC 9
Storage Temperature Tstg -55 125 oC 6
Operating Temperature Topr -40 110 oC 6
Output IC Junction Temperature TJ 125 oC 6
Total Output Supply Voltage (VCC, VEE) VCC-VEE 0 35 V 6
Average Forward Input Current IF 20 mA 6
Reverse Input Voltage VR 5 V 6
Peak Transient Input Current IF(TRAN) 1 A Note 1: Pulse width (PW) ≤ 1 μs, 300 pps 6
High Peak Output Current IOH(PEAK) 3 A Note 2: Exponential waveform. Pulse width ≤ 0.3 μs, f ≤ 15 kHz 6
Low Peak Output Current IOL(PEAK) 3 A Note 2: Exponential waveform. Pulse width ≤ 0.3 μs, f ≤ 15 kHz 6
Input Current (Rise/Fall Time) tr(IN)/tf(IN) 500 ns Note 3: Rise and fall times of input on-current should be less than 500 ns 6
Output Voltage VO(PEAK) 35 V 6
Power Dissipation PI 45 mW 6
Output Power Dissipation PO 700 mW 6
Total Power Dissipation PT 745 mW 6
Lead Solder Temperature (10s) Tsol 260 oC 10 s 6
Operating Temperature TA -40 110 oC 6
Supply Voltage VCC 15 30 V 6
Input Current (ON) IFL(ON) 7 16 mA 6
Input Voltage (OFF) VF(OFF) 0 0.8 V 6

CAD (KiCad official)

  • Symbol: LTV-3120
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: DIP-8 (KiCad packages3D, STEP)
  • 3D model files: ltv-3120-etched.step / ltv-3120-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltv-3120.step / ltv-3120.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Lite On datasheet (16 pp, sha256 b4e08be05aa4f278, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF