LT8315HFE#PBF Analog Devices Integrated Circuit (Other) In Stock
The LT8315HFE#PBF is a micropower no-opto isolated flyback converter controller from Analog Devices supporting 9.5 V to 40 V input with an integrated 630 V / 300 mA switch, eliminating the optocoupler for simplified isolated power-supply design. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LT8315HFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.3600(MOQ 1)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT8315HFE#PBF?
- No-opto isolated flyback topology with 630 V / 300 mA integrated switch enabling opto-coupler-free isolated DC/DC designs that reduce BOM and improve reliability
- 9.5 V to 40 V input voltage range covering 12 V, 24 V, and 36 V industrial and automotive power rails with a single controller IC
- Current-mode control architecture providing inherent cycle-by-cycle current limiting and fast transient response in isolated flyback power supplies
What is LT8315HFE#PBF used for?
The LT8315HFE#PBF is designed for isolated flyback power-supply applications in industrial equipment, building automation, and metering systems where eliminating the optocoupler simplifies the feedback path and improves long-term reliability. Its 9.5 V to 40 V input range and integrated 630 V / 300 mA switch make it well suited for generating isolated low-voltage rails from 12 V to 36 V bus supplies in PLC modules, RS-485 transceivers, and sensor transmitters.
What are the specifications of LT8315HFE#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1990 |
| YTEOL | 9 |
| Analog IC - Other Type | POWER FACTOR CONTROLLER |
| Control Mode | CURRENT-MODE |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 9.5V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 250kHz |
| Technology | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the LT8315HFE#PBF datasheet?
LT8315HFE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT8315HFE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT8315HFE#PBF support and which industrial bus voltages does it accommodate?
The LT8315HFE#PBF accepts input voltages from 9.5 V to 40 V, covering the standard 12 V, 24 V, and 36 V rails used in industrial automation, building management systems, and automotive 12 V or 24 V truck platforms. A single IC handles all of these bus voltages without external pre-regulators, simplifying the isolated power-supply design.
How does the no-opto flyback architecture of the LT8315HFE#PBF improve reliability compared to optocoupler-based isolated designs?
Optocouplers degrade over time due to LED aging, with current-transfer-ratio drift of 20% to 50% over 10 years at elevated temperature. The LT8315HFE#PBF eliminates the optocoupler entirely by sensing the output voltage through the transformer auxiliary winding, removing the optocoupler as a failure mode and extending mean time between failures in the isolated 630 V flyback power-supply circuit.
What switching voltage and current capability does the integrated switch in the LT8315HFE#PBF provide?
The LT8315HFE#PBF integrates a 630 V, 300 mA switch directly in the IC, which is rated to handle the voltage spikes generated by the flyback transformer leakage inductance on a 40 V input rail. With a 300 mA switch, the controller can deliver useful output power in the range of several hundred milliwatts to a few watts, covering the bias supply needs of gate drivers, microcontrollers, and communication interfaces in isolated systems.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 1+ | $13.8500 | $13.85 |
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