LTC4162EUFD-FAD#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC4162EUFD-FAD is a 35 V, 3.2 A multi-cell LiFePO4 step-down battery charger with integrated PowerPath control and I2C telemetry in a 28-pin QFN package. It features programmable charge current, input voltage regulation, and real-time monitoring of voltage, current, and temperature via I2C. Available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- LTC4162EUFD-FAD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.4600(MOQ 1)
- Temp Range
- ?°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC4162EUFD-FAD#PBF?
- Up to 3.2 A programmable charge current with 35 V input voltage rating supports multi-cell LiFePO4 packs in portable and industrial systems
- Integrated PowerPath control allows seamless transition between input power and battery, preventing supply interruption during charge
- Full I2C telemetry reports real-time battery voltage, charge current, input voltage, and die temperature for system health monitoring
- Adjustable charge termination threshold and input current limit simplify compliance with LiFePO4 cell specifications
- 28-pin QFN package with exposed paddle minimizes board area while aiding thermal dissipation at high charge currents
What is LTC4162EUFD-FAD#PBF used for?
The LTC4162EUFD-FAD is designed for multi-cell LiFePO4 battery charging in industrial handheld instruments, portable medical devices, and autonomous field equipment powered by solar or DC adapters up to 35 V. Its PowerPath architecture ensures uninterrupted system operation while simultaneously charging the battery pack, critical for always-on applications. The I2C telemetry interface enables host-side battery state-of-charge monitoring and adaptive charge management in smart battery systems.
What are the specifications of LTC4162EUFD-FAD#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1866 |
| Date Of Intro | 2018-05-30 |
| YTEOL | 10 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | R-PQCC-N28 |
| 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) | 35V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 18V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | OTHER |
| 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 |
Where can I find the LTC4162EUFD-FAD#PBF datasheet?
LTC4162EUFD-FAD#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4162EUFD-FAD#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LTC4162EUFD-FAD's PowerPath feature maintain system power during battery charging?
The LTC4162EUFD-FAD's PowerPath control automatically routes input power to the system load while simultaneously delivering up to 3.2 A to the LiFePO4 battery pack. If the input current limit of the adapter is reached, the IC reduces charge current dynamically to prioritize the load. This prevents brownouts during peak demand at input voltages up to 35 V, which is essential for industrial handhelds and medical monitors that must remain operational during charging cycles.
What telemetry data is accessible over I2C from the LTC4162EUFD-FAD, and how is it used in smart battery designs?
The LTC4162EUFD-FAD reports real-time battery voltage, charge current, input voltage, and die temperature through its I2C interface. A host microcontroller can read these values to compute state-of-charge, detect cell imbalance, or throttle charge current based on thermal limits. This eliminates the need for external ADCs and sense circuits, reducing BOM by 4 or more components in LiFePO4 pack charger designs targeting 12 V to 24 V battery configurations.
For a solar-powered field instrument, how does the LTC4162EUFD-FAD handle variable input voltage from a panel?
The LTC4162EUFD-FAD includes input voltage regulation that limits the panel operating point, functioning as a maximum power point tracking assist when the solar panel voltage drops under heavy current draw. With a 35 V input rating and adjustable input current limit, it accommodates 18 V to 30 V panel outputs typical of portable solar arrays, maintaining stable 3.2 A charge rates when irradiance is adequate while gracefully reducing current as panel voltage drops.
How does the LTC4162EUFD-FAD compare to a standard linear LiFePO4 charger in efficiency and thermal performance?
As a step-down (buck) charger rather than a linear device, the LTC4162EUFD-FAD converts excess input-to-battery voltage difference into charge current efficiently, with conversion efficiency typically above 90% at 3.2 A. A linear charger dissipates the full voltage differential as heat, producing watts of waste power at high charge rates. The 28-pin QFN package with exposed thermal paddle handles the reduced dissipation in the LTC4162EUFD-FAD, enabling operation across the -40°C to +85°C range without a heat sink.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
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.
More from Analog Devices
LT3062EDCB#TRPBF
Small Outline No-lead
Integrated Circuit
LT3062EDCB#TRMPBF
Small Outline No-lead
Integrated Circuit
LT8641IUDC#TRPBF
Other
Integrated Circuit
HMC412AMS8GTR
Small Outline Packages
Integrated Circuit
LT3062HMS8E#PBF
Small Outline Packages
Integrated Circuit
LT3062IMS8E#PBF
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $8.6400 | $8.64 |
| 10+ | $5.8150 | $58.15 |
| 19+ | $4.5900 | $87.21 |
| 1000+ | $3.4600 | $3460.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit