LT8315IFE#PBF Analog Devices Integrated Circuit (Other) In Stock
Analog Devices LT8315IFE#PBF is a 560 V input micropower no-opto isolated flyback converter IC with an integrated 630 V, 300 mA switch in a 16-pin SOIC package, enabling optocoupler-free isolated power designs from 9.5 V to 40 V input.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LT8315IFE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.1800(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT8315IFE#PBF?
- Integrated 630 V, 300 mA power switch enables complete isolated flyback converters without an external switching transistor
- No-opto feedback architecture eliminates the optocoupler component, reducing BOM cost and improving reliability at high temperatures
- 560 V maximum input handling supports direct offline or high-voltage bus applications without a front-end step-down stage
- Micropower quiescent current extends light-load efficiency, reducing standby power consumption in always-on isolated power rails
What is LT8315IFE#PBF used for?
The LT8315IFE#PBF targets isolated power supplies in industrial meters, smart grid equipment, and building automation controllers where an optocoupler-free, compact flyback topology must operate from high-voltage DC or rectified AC bus rails. Its 9.5 V to 40 V operating input range suits 12 V and 24 V industrial bus-derived auxiliary supplies, while the integrated 630 V switch allows use in offline flyback stages following a bulk capacitor. The no-opto feedback scheme simplifies design, reduces component count, and improves mean time between failures in dense multi-rail power architectures.
What are the specifications of LT8315IFE#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 |
| Temperature Grade | AUTOMOTIVE |
| 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 LT8315IFE#PBF datasheet?
LT8315IFE#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT8315IFE#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LT8315IFE#PBF eliminate the optocoupler in an isolated flyback converter, and what reliability benefit does that provide?
The LT8315IFE#PBF uses proprietary primary-side regulation to sense output voltage via the flyback waveform across the transformer, removing the need for an optocoupler feedback path. Eliminating the optocoupler — a component with limited operating lifetime above 85°C — improves MTBF and allows the converter to maintain isolation in industrial designs rated to higher ambient temperatures without output regulation degradation.
What input voltage range and integrated switch rating does the LT8315IFE#PBF support for high-voltage isolated supplies?
The LT8315IFE#PBF operates from a 9.5 V to 40 V input supply rail and includes an integrated 630 V, 300 mA switch, enabling the design of isolated flyback converters that can handle rectified offline voltages up to 560 V on the primary side. This eliminates the need for an external MOSFET in low-to-medium power isolated auxiliary supply designs up to a few watts.
For a smart meter or industrial IoT node needing an isolated 3.3 V or 5 V rail, why is the LT8315IFE#PBF 16-pin SOIC format advantageous?
The LT8315IFE#PBF in a 16-pin SOIC package integrates the controller, gate driver, and 630 V power switch into a single 10 mm x 6 mm body, dramatically reducing PCB area compared to a discrete flyback design requiring a controller IC, separate power MOSFET, and optocoupler. This integration is particularly valuable in compact DIN-rail meter modules and IoT sensor nodes where isolated 3.3 V or 5 V rails must fit within a footprint of just a few square centimeters.
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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+ | $13.3100 | $13.31 |
| 10+ | $9.2030 | $92.03 |
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