TPS5904DCS Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
Texas Instruments TPS5904DCS is an optically isolated feedback amplifier with 100% to 400% current transfer ratio and 7500V isolation voltage in 8-pin PDIP package, UL recognized and VDE approved. Designed for power supply feedback loops requiring galvanic isolation up to 35V collector-emitter breakdown. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TPS5904DCS Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 100.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS5904DCS?
- 100% to 400% adjustable current transfer ratio enabling precise optocoupler-based feedback loop compensation in isolated SMPS
- 7500V isolation voltage with UL recognized and VDE approved safety certifications for industrial and medical power supplies
- 35V collector-emitter breakdown voltage with 100nA maximum dark current for high-efficiency feedback path with minimal leakage
What is TPS5904DCS used for?
The TPS5904DCS is used in isolated flyback and forward converter feedback loops where galvanic isolation between primary and secondary is required for safety compliance. Its 7500V isolation and dual international certifications make it well suited for medical power supplies, industrial equipment, and telecom infrastructure meeting IEC 60950 or IEC 62368 standards. The opto-isolated feedback path allows stable regulation across wide input voltage ranges without coupling primary-side control circuitry directly to the output.
What are the specifications of TPS5904DCS?
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | UL RECOGNIZED, VDE APPROVED |
| Coll-Emtr Bkdn Voltage-Min | 35V |
| Configuration | SINGLE |
| Current Transfer Ratio-Min | 100% |
| Dark Current-Max | 100nA |
| Forward Current-Max | 0.05A |
| Forward Voltage-Max | 1.4V |
| Isolation Voltage-Max | 7500V |
| Mounting Feature | SURFACE MOUNT |
| Number of Elements | 1 |
| On-State Current-Max | 0.05A |
| Optoelectronic Device Type | TRANSISTOR OUTPUT OPTOCOUPLER |
| Power Dissipation-Max | 0.35W |
| Surface Mount | YES |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8541.40.80.00 |
Where can I find the TPS5904DCS datasheet?
TPS5904DCS Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS5904DCS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the isolation voltage rating and current transfer ratio range of the TPS5904DCS?
The TPS5904DCS provides 7500V galvanic isolation voltage and a current transfer ratio (CTR) range of 100% to 400%. This wide CTR range allows designers to set precise LED drive currents to achieve the desired feedback gain in isolated switching power supply control loops.
For a medical power supply design, does the TPS5904DCS meet required safety agency approvals?
Yes, the TPS5904DCS is UL recognized and VDE approved, meeting safety requirements relevant to medical and industrial power supply certification. Its 7500V isolation voltage exceeds the 4000V typically required for medical-grade reinforced insulation, supporting compliance with IEC 60601-1 creepage and clearance requirements when properly applied.
How does the 100nA maximum dark current of TPS5904DCS affect feedback loop accuracy in low-power standby conditions?
With a maximum dark current of 100nA, the TPS5904DCS contributes negligible leakage to the feedback node when the LED is off. In standby mode where output voltage regulation requires tight control, 100nA dark current creates less than 0.1mV error across a 1kΩ pull-up, preserving feedback accuracy at light loads.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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