LT4320HN8-1#PBF Analog Devices Integrated Circuit (Dual-In-Line Packages) In Stock
The LT4320HN8-1#PBF is an ideal diode bridge controller IC from Analog Devices supporting 9 V to 72 V input range. It drives four external N-channel MOSFETs to form a near-lossless full-wave bridge rectifier, replacing lossy Schottky diode bridges. Packaged in an 8-pin DIP.
- Manufacturer
- Analog Devices
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT4320HN8-1#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.1800(MOQ 19)
- 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 LT4320HN8-1#PBF?
- Controls 4 external N-channel MOSFETs to replace Schottky diode bridges with near-zero forward voltage drop
- Wide 9 V to 72 V input range covering industrial, telecom, and automotive DC supply rails
- Reduces bridge rectifier power loss by up to 10× compared to conventional silicon diode bridges
- Simple 8-pin DIP-8 package enables easy prototyping and through-hole assembly
What is LT4320HN8-1#PBF used for?
The LT4320HN8-1#PBF is designed for AC-DC bridge rectifier stages in industrial power supplies, telecom equipment, and solar energy systems where minimizing rectifier losses is critical. By driving external N-channel MOSFETs in a full-wave bridge configuration, it eliminates the 0.4 V to 0.7 V forward drop inherent in diode bridges, improving efficiency at high currents. It is also used in battery backup systems and PoE midspan injectors operating from 9 V to 72 V rails.
What are the specifications of LT4320HN8-1#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1510 (N8) |
| YTEOL | 9 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
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 LT4320HN8-1#PBF datasheet?
LT4320HN8-1#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT4320HN8-1#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the LT4320HN8-1#PBF support and which power rails does that cover?
The LT4320HN8-1#PBF operates across a 9 V to 72 V input voltage range, covering 12 V, 24 V, 48 V, and nominal 72 V industrial and telecom DC rails. This wide range allows one design to serve multiple system voltages without hardware changes, simplifying BOM management.
How does the LT4320HN8-1#PBF reduce power loss compared to a conventional diode bridge?
Traditional silicon diode bridges incur 0.4 V to 0.7 V forward voltage drop per diode, causing significant losses at high currents. The LT4320HN8-1#PBF replaces these diodes with 4 N-channel MOSFETs driven to near-zero on-resistance, reducing conduction losses by up to 10× at the same current level.
What is the required external circuit for the LT4320HN8-1#PBF and how complex is the design?
The LT4320HN8-1#PBF requires 4 external N-channel MOSFETs selected for the target voltage and current, plus gate resistors and bootstrap capacitors. Gate drive charge-pump circuitry is integrated on-chip, so the design adds fewer than 10 passive components to implement a complete ideal diode bridge rated for currents above 20 A.
In which industrial applications is replacing a standard diode bridge with the LT4320HN8-1#PBF most beneficial?
Applications with continuous high currents above 5 A benefit most, including 48 V telecom rectifiers, industrial motor drives, and solar MPPT converters. In a 48 V, 10 A system, replacing a Schottky bridge with LT4320HN8-1#PBF saves roughly 14 W of continuous heat dissipation, reducing heatsink size and improving overall system efficiency.
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Why Buy from FindMyChip
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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $8.1900 | $155.61 |
| 100+ | $6.9224 | $692.24 |
| 250+ | $6.7125 | $1678.12 |
| 1000+ | $6.1800 | $6180.00 |
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