LT8304
LT8304-1

RECOMMENDED FOR NEW DESIGNS

100VIN Micropower No-Opto Isolated Flyback Converter with 150V/2A Switch

Data Sheet (Rev. B) Product Selection Table
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Overview

  • 3V to 100V Input Voltage Range
  • 2A, 150V Internal DMOS Power Switch
  • Low Quiescent Current:
    • 116μA in Sleep Mode
    • 390μA in Active Mode
  • Quasi-Resonant Boundary Mode Operation at Heavy Load
  • Low Ripple Burst Mode® Operation at Light Load
  • Minimum Load < 0.5% (Typ) of Full Output
  • No Transformer Third Winding or Opto-Isolator
  • Required for Output Voltage Regulation
  • Accurate EN/UVLO Threshold and Hysteresis
  • Internal Compensation and Soft-Start
  • Temperature Compensation for Output Diode
  • Output Short-Circuit Protection
  • Thermally Enhanced 8-Lead SO Package
LT8304
LT8304-1
100VIN Micropower No-Opto Isolated Flyback Converter with 150V/2A Switch
4V to 80VIN/5VOUT Isolated Flyback Converter Efficiency vs Load Current Product Package 1
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Documentation

Data Sheet 1

User Guide 1

Design Note 1

Technical Articles 3

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Hot Swap Controllers 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
MOSFET & Gate Drivers 1
LTM9100
NOT RECOMMENDED FOR NEW DESIGNS Anyside™ High Voltage Isolated Switch Controller with I2C Command and Telemetry
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LT8304
  • LT8304-1
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
AD-APARDPFW-SL

2-port 10BASE-T1L Arduino Shield with SPoE Power Forwarding

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Features and Benefits

  • Software-controlled Power and Data forwarding
  • Power isolation
  • Multiple SPoE classes
  • Complete connectivity passthrough
  • Compatible with Arduino Mega form-factor
  • Supports daisy chaining with other compatible boards

Product Details

The AD-APARDPFW-SL is a 10BASE-T1L power forwarder with Single Pair Power over Ethernet (SPoE) for development of field devices and applications on an AD-APARD32690-SL platform board. The SPoE powered device (PD) and isolated flyback regulator provide 12V power to the platform board. SPoE Class 10 to 12 (24V nominal) and Class 13 to 14 (55V nominal) are supported.

Designed for use on the AD-APARD32690-SL platform, the AD-APARDPFW-SL hardware features Arduino Mega Form-factor headers, and two 10BASE-T1L ports for connecting to a 10BASE-T1L Power Sourcing Equipment (PSE) such as the AD-RPI-T1LPSE-SL 2-port 10BASE-T1L with SPoE PSE Development Platform.

To allow board stacking and development of field device applications using Arduino shields, the AD-APARDPFWD-SL has extra tall headers that allow other Arduino shields to be stacked on top of it.

The design also features complete power and data isolation to the host AD-APARD32690-SL.

APPLICATIONS

  • Factory automation
  • Process control
  • Intelligent buildings
  • Secure field instruments
  • Internet of Things

eval board
schematic 5
schematic 6
schematic 7
schematic 8
AD-APARDSPOE-SL

10BASE-T1L Power Extractor with Class 10-14 SPoE for the AD-APARD32690-SL

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Features and Benefits

  • Plug-and-play solution
  • Compatible with the newest version of AD-APARD32690-SL
  • Power extraction using the AD-APARD32690-SL’s SPoE connector
  • Power isolation
  • Multiple SPoE classes
  • Complete connectivity passthrough

Product Details

The AD-APARDSPOE-SL is a 10BASE-T1L power extractor with Single Pair Power over Ethernet (SPoE) for development of field devices and applications on an AD-APARD32690-SL platform board. The SPoE powered device (PD) and isolated flyback regulator provide 12V power to the platform board. SPoE Class 10-12 (24V nominal) and Class 13-14 (55V nominal) are supported.​

Important Compatibility Note:​
The AD-APARDSPOE-SL works only with the newest revision of the AD-APARD32690-SL boards, as it requires a 90-degree connector for proper integration.​

Designed for use on the AD-APARD32690-SL platform, the AD-APARDSPOE-SL hardware features Arduino form-factor headers and three pins to extract power from the AD-APARD32690-SL board.​​

To support board stacking and the development of field device applications using Arduino shields, the AD-APARDSPOE-SL is equipped with extra-tall headers, enabling other Arduino shields to be stacked on top of it.

The design also features complete power isolation to the host AD-APARD32690-SL.

APPLICATIONS

  • Factory automation
  • Process control
  • Intelligent buildings
  • Secure field instruments
  • Internet of Things

eval board
schematic 9
schematic 10
schematic 11
schematic 12
schematic 13
DC2393A

LT8304ES8E Isolated Demo Board | No-Opto Flyback, 18V ≤ VIN ≤ 72V; VOUT = 5V @ 2A to 4.2A

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Product Details

Demonstration circuit 2393A is a micropower no-opto isolated flyback converter featuring the LT8304. This demo circuit outputs 5.0V, and maintains tight regulation with a load current from 20mA up to 4.2A and over an input voltage from 18V to 72V. The output current capability increases with the input voltage, as shown in the Performance Summary table.
AD-APARDPFW-SL
2-port 10BASE-T1L Arduino Shield with SPoE Power Forwarding
AD-APARDPFW-SL Evaluation Board Photo Angle View AD-APARDPFW-SL Evaluation Board Photo Top View AD-APARDPFW-SL Evaluation Board Photo Bottom View AD-APARDPFW-SL Block Diagram
AD-APARDSPOE-SL
10BASE-T1L Power Extractor with Class 10-14 SPoE for the AD-APARD32690-SL
AD-APARDSPOE-SL Evaluation Board Photo Angle View AD-APARDSPOE-SL Evaluation Board Photo Top View AD-APARDSPOE-SL Evaluation Board Photo Bottom View AD-APARDSPOE-SL Block Diagram
DC2393A
LT8304ES8E Isolated Demo Board | No-Opto Flyback, 18V ≤ VIN ≤ 72V; VOUT = 5V @ 2A to 4.2A
DC2393A Demo Board DC2393A Demo Board DC2393A Demo Board DC2393A Demo Board DC2393A - Schematic

Reference Designs

Figure 1. CN0575 Simplified Block Diagram
Figure 1. CN0575 Simplified Block Diagram
EVAL-CN0575-RPIZ - Angle View
EVAL-CN0575-RPIZ - Top View II
EVAL-CN0575-RPIZ - Top View
CN0575 Circuits from the lab

10BASE-T1L Field Device Development Platform with Class 12 and 13 SPoE

View Detailed Reference Design

Features and Benefits

  • Data and Power Delivery using Single Pair Power over Ethernet
  • Power Class 12 and 13 Delivery Capable
  • Supports Longer Distances up to 1 km
  • Provides Speeds up to 10 MBPS
  • Works with Existing Software Stacks like PROFINET, EtherCat, MOD-BUS, and others
CN0575
10BASE-T1L Field Device Development Platform with Class 12 and 13 SPoE
Figure 1. CN0575 Simplified Block Diagram
EVAL-CN0575-RPIZ - Angle View
EVAL-CN0575-RPIZ - Top View II
EVAL-CN0575-RPIZ - Top View

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