LTC4417CUF#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC4417CUF#PBF is a prioritized triple PowerPath controller managing three power inputs from 2.5V to 36V with automatic switchover based on adjustable OV/UV thresholds. It seamlessly selects the highest-priority valid supply, controlling three external P-channel MOSFETs for near-lossless power routing. Housed in a 24-pin QFN package for compact redundant-power and multi-source energy management designs.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- LTC4417CUF#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.2100(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Manages 3 prioritized power inputs from 2.5V to 36V with automatic switchover
- Adjustable overvoltage and undervoltage thresholds referenced to 1V internal reference
- Controls 3 external P-channel MOSFETs for near-zero-loss power path switching
- Seamless transition between power sources with no output glitch
- 24-pin QFN package enabling compact multi-supply management on constrained PCBs
- Fault flag outputs for each channel enabling system-level power health monitoring
Applications
The LTC4417CUF#PBF is designed for redundant and priority-based power management in industrial equipment, telecom systems, and portable instruments that can accept power from multiple sources such as a wall adapter, battery pack, and backup supply simultaneously. It monitors each input's voltage against programmable OV and UV thresholds and automatically connects the highest-priority valid source, ensuring uninterrupted load power during source failures or brownouts. The device also suits solar-plus-battery energy systems where source priority switching based on availability and voltage level is essential for reliable operation.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1697 |
| YTEOL | 10 |
| Additional Feature | OV, UV THRESHOLD VOLTAGE IS 1V |
| Adjustable Threshold | YES |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | S-PQCC-N24 |
| JESD-609 Code | e3 |
| Number of Channels | 3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 36V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Threshold Voltage-Nom | +1V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LTC4417CUF#PBF determine which of its 3 power inputs to activate at any given time?
The LTC4417CUF#PBF assigns fixed priority order to its 3 inputs (IN1 highest, IN3 lowest) and continuously monitors each input against adjustable overvoltage and undervoltage thresholds referenced to a 1V internal reference. When the highest-priority valid input falls out of regulation — either too low (UV) or too high (OV) — the controller disables that input's MOSFET and enables the next available valid supply within microseconds. This prioritized scheme ensures the load always receives power from the best available 2.5V to 36V source without requiring software intervention.
What external components are required to set the OV and UV thresholds for each channel on the LTC4417CUF#PBF?
Each channel uses two resistor dividers from its input rail to the OV and UV comparator pins, which are referenced to a 1V threshold internally. For a 12V nominal input with ±10% window, a divider ratio of approximately 12:1 programs the UV threshold at 10.8V and a ratio of about 13.6:1 sets the OV threshold at 13.2V, using standard 1% resistors in the 100 kΩ range. Three independent sets of 4 resistors (2 per threshold per channel) are needed, adding 12 passives total to the BOM for full triple-channel threshold programming.
In a solar-plus-battery-plus-AC-adapter system, how would a designer assign channel priority on the LTC4417CUF#PBF?
The designer would assign the AC adapter to IN1 (highest priority, up to 36V), the battery pack to IN2 (second priority, e.g. 10.8V to 14.4V for a 3-cell Li-Ion), and the solar panel to IN3 (lowest priority, highly variable 2.5V to 25V). When the AC adapter is present and within its OV/UV window, it powers the load exclusively via the IN1 P-channel MOSFET. On AC loss, IN2 activates seamlessly, maintaining load voltage within the battery's 3-cell discharge range. Solar serves as a last-resort backup or top-up path, ensuring at least one of the 3 sources is always available to maintain system operation.
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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.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $8.4900 | $8.49 |
| 10+ | $5.7650 | $57.65 |
| 1000+ | $4.2100 | $4210.00 |
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