Adafruit
Adafruit LM73100 23V 5A Ideal Diode Breakout
· MPN: ADA6359
This breakout lets you add an ideal diode to a higher-current DC power path without the usual forward voltage drop of a standard diode. It is designed for 3~...
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This breakout lets you add an ideal diode to a higher-current DC power path without the usual forward voltage drop of a standard diode. It is designed for 3~23V DC supplies and up to 5A, using the LM73100's back-to-back FETs to keep current flowing in one direction while wasting far less power as heat. That makes it a handy choice for efficiency-sensitive setups such as solar inputs and LiPoly battery power paths.
Adafruit has made the board easy to wire into a project, with on-board terminal blocks for solder-free inline connections and a green LED that lights when power is flowing in the correct direction. There is also an IMON output, so you can read an analogue voltage to monitor load current without adding a separate power monitoring board.
For prototyping, the PCB includes 9 x 0.1" breakout pads and a strip of header is included. A little soldering is needed if you want to use it on a breadboard, or you can skip the header and wire directly to the terminal blocks for a more permanent installation.
Specifications:
- Operating input voltage range: 2.7 V to 23 V
- Absolute maximum voltage: 28-V absolute maximum
- Negative voltage tolerance: Withstands negative voltages up to -15 V
- On-resistance: RON = 28.4 mΩ (typ)
- Ideal diode operation: with true reverse current blocking
- Overvoltage protection: Fast overvoltage protection
- Response time: 1.2-μs (typ) response time
- Transient overcurrent response: Fast-trip response to transient overcurrents during steady state
- Response time: 500-ns (typ) response time
- Fault behaviour: Latch-off after fault
- Current monitor output: Analog load current monitor output (IMON)
- Current range: 0.5 A to 5.5 A
- Accuracy: ±15% (max) (IOUT ≥ 1 A)
- Overtemperature protection: Overtemperature protection
- Power Good indication: Power Good indication (PG)
- Maximum current: 5A
- Product dimensions: 25.6mm x 17.6mm x 11.9mm / 1.0" x 0.7" x 0.5"
A good fit for low-loss power routing, battery systems and solar projects where an ordinary diode would waste too much voltage.
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- Forward voltage drop
- Forward voltage drop is the small amount of voltage lost across a diode or diode-like circuit when current flows through it. A lower drop is important because it wastes less power and helps keep the rest of the project supplied with enough voltage.
- Ideal diode
- An ideal diode circuit lets current flow one way like a normal diode, but with much less voltage loss. This matters in power-selection or backup-power projects because less voltage is wasted as heat and more reaches your device.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- Power path
- A power path is the route electricity takes from one or more supplies to the circuit being powered. Understanding the power path helps you choose parts that can safely handle source selection, backup power, and supply switching.
- Tolerance
- Tolerance tells you how far the real resistance value may be from the printed value. A 1% resistor is useful when a circuit needs more predictable behaviour than a looser 5% or 10% part.
Find this product in
LM73100 Datasheet
Datasheet · 4.9 MB · Click any page to view full size
Supplier page — adafruit.com
Supplier Description · 803.2 KB · Click any page to view full size
