TLP291(GB-TP,SE
Manufacturer
Model
TLP291(GB-TP,SE
Category
The TLP291 provides reliable optoisolation with 3.75kV isolation and 50mA output, suitable for industrial control, power supplies, and renewable energy systems. Its SOP-4 package enables compact designs while maintaining -55°C to +110°C operational range. Critical parameters include 80V load voltage, 300mV saturation voltage, and 4µs/7µs rise/fall times.
Reference Pricing
Reference Stock
Specifications
| Data Transfer Rate | Not specified |
| Fall Time | 7 μs |
| Isolation Voltage | 3750 Vrms |
| Operating Temperature Range | -55 to 125 °C |
| Output Voltage | 80 V |
| Package Type | SOP-4-1.27mm |
| Rated Voltage | Not specified |
| Rise Time | 4 μs |
| Transistor Output Current | 50 mA |
Function And Role
Core Function
Optoisolates input and output circuits, providing electrical isolation and signal transfer
Key Characteristics
- 80V load voltage
- 3.75kV isolation voltage (Vrms)
- 50mA output current
- 300mV VCE(sat) at 2.4mA/8mA
- 1.25V forward voltage (Vf)
- 5V reverse voltage (Vr)
- 4µs rise time (100Ω load)
- 7µs fall time (100Ω load)
- -55°C to +110°C operating temperature
Application Domains
Basic Scenarios
- Industrial control systems
- Power supply isolation
- Consumer electronics signal isolation
Extended Scenarios
- Medical device safety circuits
- Renewable energy system inverters
- Automotive ECU protection
Precautions
| Soldering | Use lead-free solder and avoid prolonged heat exposure (max 2s per pad) |
| Current Limit | Max output current 50mA (exceedance causes saturation failure) |
| Voltage Limit | Input voltage ≤80V, isolation ≤3.75kV |
| Thermal Management | Thermal resistance 25°C/W; require copper pour >5mm² for heat dissipation |
| Storage | Store in <10% RH, <40°C environment with anti-static packaging |
| Risk Warnings |
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Alternative Model Params
- Load voltage (≤80V)
- Isolation voltage (3k-4kV range)
- Output current (≤50mA)
- VCE(sat) <300mV
- Operating temperature range (-40°C to +100°C)
- Rise/fall time <10µs
Design Recommendations
| Layout | Maintain ≥3mm isolation gap between input/output sections |
| Thermal | Use thermal vias under power pins for heat dissipation |
| Compatibility | Verify SOP-4 footprint with PCB design |
| Testing | Validate isolation withstand voltage test at 1.5× rated voltage for 1 minute |
Market Positioning
| Strengths |
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| Weaknesses |
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Datasheet
Assist inquiry
Distributors
Shenzhen Rongda Wei Electronic Technology Co., Ltd.
Shenzhen Xiongdada Electronics Co., Ltd.
Shenzhen Weichengchengye Electronic Co., Ltd.
Shenzhen Yuxin Chuangda Technology Co., Ltd.
Shenzhen Zhihai Yun Tian Electronic Co., Ltd.
Shenzhen Futian District Jiaxiangxing Electronic Business Department
Shenzhen Jinpeng Microelectronics Co., Ltd.
Shenzhen Xingjiawang Electronic Technology Co., Ltd.
Shenzhen Futian District Hongtaiyu Electronic Operation Department
Shenzhen Huisheng Technology Co., Ltd.
Shenzhen Kotianling Electronics Co., Ltd.
Shenzhen Weijing Electronics Co., Ltd.
Shenzhen Futian District Yujian Electronic Merchants
Shenzhen Hongshengtai Electronic Co., Ltd.
Shenzhen Tianhailong Technology Co., Ltd.
Shenzhen Yigecheng Technology Co., Ltd.
Shenzhen Huahongxing Electronic Co., Ltd.
Shenzhen Yuxiang Electronic Trade (Individual Proprietorship)
Shenzhen Futian District Xinkeyu Electronic Trading Co., Ltd. (formerly Shenzhen Futian District Borsonton Electronic Trading Co., Ltd.)
Shenzhen Futian District Jingshengke Electronic Commerce
Shenzhen Hongrongsheng Technology Co., Ltd.
Shenzhen Futian District Fengda Electronic Business Department
Shenzhen Sanliujiu Technology Co., Ltd.
Futian District Huqiang Electronic World Weiguang Electronic Business Department
Shenzhen Jindapeng Technology Co., Ltd.
Shenzhen Futian District Fengyu Electronic Business Department
Shenzhen Juyuanxin Electronic Co., Ltd.
Shantou Shengzhou Electronic Commerce (Individual)
Shenzhen Xinyasi Electronic Market Huiyi Electronic Trading Company
Shenzhen Tianke Century Electronics Co., Ltd.