LTC4041IUFD#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
Analog Devices LTC4041IUFD#PBF is a supercapacitor backup power manager capable of sourcing up to 2.5 A to power a system load during primary power failure. It automatically charges the supercapacitor stack from the main supply and monitors voltage thresholds for seamless switchover. Packaged in a 24-pin QFN for compact power management integration.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- LTC4041IUFD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5500(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 LTC4041IUFD#PBF?
- 2.5 A maximum backup output current enabling sustaining of high-performance processors during power interruptions
- Automatic supercapacitor charging with programmable charge current and end-of-charge voltage for cell protection
- Adjustable voltage threshold supervisory circuit detecting primary power failure and triggering seamless backup switchover
- Single-channel architecture managing the full charge/discharge cycle of supercapacitor stacks up to several farads
- 24-pin QFN package with exposed pad enabling high thermal conductivity for 2.5 A operation
What is LTC4041IUFD#PBF used for?
The LTC4041IUFD#PBF is used in industrial embedded systems and solid-state drives where a supercapacitor must provide backup power for a controlled shutdown or data flush when the primary rail fails unexpectedly. It is deployed in smart meters, data loggers, and network switches that must complete write operations to non-volatile memory before losing power. The device is also integrated into robotics and motor control systems where capacitor-backed holdup time prevents data loss during brief supply interruptions.
What are the specifications of LTC4041IUFD#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1696 |
| Date Of Intro | 2018-07-03 |
| YTEOL | 10 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | BATTERY BACKUP SUPERVISOR |
| JESD-30 Code | R-PQCC-N24 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.9V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| 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 |
Where can I find the LTC4041IUFD#PBF datasheet?
LTC4041IUFD#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4041IUFD#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much current can the LTC4041IUFD#PBF deliver to the system load during a backup power event?
The LTC4041IUFD#PBF can source up to 2.5 A from the supercapacitor stack to the system load, supporting processors and FPGAs that require significant current during a controlled shutdown sequence. The 24-pin QFN package with an exposed thermal pad helps dissipate the power generated at 2.5 A to keep junction temperatures within safe limits.
How does the LTC4041IUFD#PBF detect primary power failure and initiate backup mode?
An adjustable threshold supervisor continuously monitors the primary supply voltage. When the voltage falls below the programmed comparator threshold, the device automatically disconnects the charger path and begins delivering energy from the supercapacitor stack through the output switch, achieving a near-seamless transition with switchover times typically in the microsecond range to prevent supply dropout below 2.5 V on the load rail.
What supercapacitor stack voltages and capacitances are compatible with the LTC4041IUFD#PBF?
The LTC4041IUFD#PBF is designed to work with supercapacitor stacks whose end-of-charge voltage is set by external resistors, making it adaptable to single or multi-cell supercapacitor configurations with capacitances ranging from hundreds of millifarads to tens of farads. The programmable charge voltage protects individual supercapacitor cells from over-voltage, and a 1 F supercapacitor at 2.5 V can deliver 2.5 A for approximately 1 second of holdup time.
Which application categories benefit most from using the LTC4041IUFD#PBF instead of a battery backup solution?
Applications needing short holdup intervals of 1 second to 30 seconds for ordered shutdown prefer supercapacitors over batteries because supercapacitors have virtually unlimited charge-discharge cycle life, no shelf degradation, and operate reliably across -40°C to 85°C. The LTC4041 manages this supercapacitor stack automatically, making it superior to lithium coin-cell backups in high-cycle industrial recorders, SSD power-loss protection circuits, and network equipment where battery replacement is impractical.
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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 |
|---|---|---|
| 1+ | $10.5900 | $10.59 |
| 10+ | $7.2190 | $72.19 |
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| 292+ | $6.7000 | $1956.40 |
| 500+ | $5.3900 | $2695.00 |
| 1000+ | $4.5500 | $4550.00 |
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