High voltage photocoupler LITEON LTV-3120S-TA1 designed for motor control and power inverter systems
LTV-3120 Series Photocoupler
The LTV-3120 series photocoupler is designed for driving power IGBTs and MOSFETs in motor control inverters and power supply systems. It features an AlGaAs LED coupled to an integrated circuit with a power output stage, capable of delivering 3.0A peak output current to directly drive IGBTs up to 1200V/100A. For higher-rated IGBTs, it can drive a discrete power stage. The photocoupler operates reliably over a wide temperature range of -40C to +110C, offering rail-to-rail output voltage and Under Voltage Lock-Out (UVLO) protection. Key applications include plasma display panels, industrial inverters, induction heating, and uninterruptible power supplies (UPS).
Product Attributes
- Brand: LITE-ON Technology Corp.
- Origin: Taiwan, R.O.C.
- Certifications: UL/ cUL Recognized, IEC/EN/DIN EN 60747-5-5
Technical Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Test Condition | Note |
| Absolute Maximum Ratings | |||||||
| Storage Temperature | Tstg | -55 | +125 | C | |||
| Operating Temperature | Topr | -40 | +110 | C | |||
| Output IC Junction Temperature | TJ | 125 | C | ||||
| Total Output Supply Voltage | (VCC VEE) | 0 | 35 | V | |||
| Average Forward Input Current | IF | 20 | mA | ||||
| Reverse Input Voltage | VR | 5 | V | ||||
| Peak Transient Input Current | IF(TRAN) | 1.0 | A | 1 | |||
| High Peak Output Current | IOH(PEAK) | 3.0 | A | 2 | |||
| Low Peak Output Current | IOL(PEAK) | 3.0 | A | 2 | |||
| Input Current (Rise/Fall Time) | tr(IN)/tf(IN) | 500 | ns | 3 | |||
| Output Voltage | VO(PEAK) | 35 | V | ||||
| Power Dissipation | PI | 45 | mW | ||||
| Output Power Dissipation | PO | 700 | mW | ||||
| Total Power Dissipation | PT | 745 | mW | ||||
| Lead Solder Temperature (10s) | Tsol | 260 | C | ||||
| Recommended Operating Conditions | |||||||
| Operating Temperature | TA | -40 | 110 | C | |||
| Supply Voltage | VCC | 15 | 30 | V | |||
| Input Current (ON) | IFL(ON) | 7 | 16 | mA | |||
| Input Voltage (OFF) | VF(OFF) | 0 | 0.8 | V | |||
| Electrical Optical Characteristics | |||||||
| Input Forward Voltage | VF | 1.2 | 1.37 | 1.8 | V | IF = 10mA | 13 |
| Input Forward Voltage Temp. Coeff. | VF/ T | -2.0 | mV/OC | IF = 10mA | |||
| Input Reverse Voltage | BVR | 5 | V | IR = 10A | |||
| Input Threshold Current (Low to High) | IFLH | 1.8 | 5 | mA | VCC = 30 V, VO > 5V | 6, 7 ,18 | |
| Input Threshold Voltage (High to Low) | VFHL | 0.8 | V | VCC = 30 V, VO | |||
| Input Capacitance | CIN | 33 | pF | f = 1 MHz, VF = 0 V | |||
| Output High Level Supply Current | ICCH | 1.7 | 3.0 | mA | IF = 10 mA, VCC = 30V, VO = Open | 4, 5 | |
| Low Level Supply Current | ICCL | 2.0 | 3.0 | mA | IF = 0 mA, VCC = 30V, VO = Open | ||
| High level output current | IOH | -1.0 | A | VO = (VCC 1.5 V) | 11, 16 | ||
| -3.0 | VO = (VCC 4 V) | 2 | |||||
| Low level output current | IOL | 1.0 | A | VO = (VEE + 1.5 V) | 12, 17 | ||
| 3.0 | VO = (VEE + 4 V) | 2 | |||||
| High level output voltage | VOH | VCC - 0.3 | VCC - 0.1 | V | IF = 10mA, IO = -100mA | 1, 2, 14 | |
| Low level output voltage | VOL | VEE + 0.1 | VEE + 0.25 | V | IF = 0mA, IO = 100mA | 3, 15 | |
| UVLO Threshold High | VUVLO+ | 11.0 | 12.7 | 13.5 | V | VO > 5V, IF = 10 mA | 19 |
| UVLO Threshold Low | VUVLO- | 9.5 | 11.2 | 12.0 | V | VO | |
| UVLO Hysteresis | UVLOHYS | 1.5 | V | ||||
| Switching Specification | |||||||
| Propagation Delay Time to High Output Level | tPLH | 50 | 500 | ns | Rg = 10, Cg = 25nF, f = 10 kHz, Duty Cycle = 50% IF = 7 to 16 mA, VCC = 10 to 30V VEE = ground | 8, 9, 10, 20 | |
| Propagation Delay Time to Low Output Level | tPHL | 50 | 500 | ||||
| Pulse Width Distortion | PWD | 100 | |||||
| Propagation delay difference | PDD | -100 | 100 | 3 | |||
| Output Rise Time (10 to 90%) | Tr | 35 | |||||
| Output Fall Time (90 to 10%) | Tf | 35 | |||||
| Common mode transient immunity at high level output | |CMH| | 35 | 50 | kV/s | TA = 25C, IF = 10 to 16 mA, VCM = 1500 V, VCC = 30 V | 21 | |
| Common mode transient immunity at low level output | |CML| | 35 | 50 | kV/s | TA = 25C, VF = 0 V, VCM = 1500 V, VCC = 30 V | ||
| Isolation Characteristic | |||||||
| Withstand Insulation Test Voltage | VISO | 5000 | V | RH 40%-60%, t = 1min, TA = 25 oC | 1, 2 | ||
| Input-Output Resistance | RI-O | 1012 | VI-O = 500V DC | 1 | |||
| Input-Output Capacitance | CI-O | 0.92 | pF | f = 1MHz, TA = 25 oC | 1 | ||
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