LTC4090-3

RECOMMENDED FOR NEW DESIGNS

USB Power Manager with 2A High Voltage Bat-Track Buck Regulator

Part Models: 2
1ku List Price: Starting From $3.89

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Part Details

Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V Supply (60V Max)
2A Output High Voltage Buck Regulator with Bat-Track^™ Adaptive Output Control
3.95V Float Voltage Improves Battery Life Span and High Temperature Safety Margin
Internal 215mW Ideal Diode Plus Optional External Ideal Diode Controller Provides Low Loss Power Path When External Supply/ USB Not Present
Load Dependent Charging from USB Input Guarantees Current Compliance
Full Featured Li-Ion Battery Charger
1.5A Maximum Charge Current with Thermal Limiting
NTC Thermistor Input for Temperature Qualified Charging
Tiny (3mm × 6mm × 0.75mm) 22-Pin DFN Package

The LTC4090-3 is a USB power manager plus high voltage Li-Ion/Polymer battery charger. The device controls the total current used by the USB peripheral for operation and battery charging. Battery charge current is automatically reduced such that the sum of the load current and the charge current does not exceed the programmed input current limit. The LTC4090-3 also accommodates high voltage power supplies, such as 12V AC/DC wall adapters, Firewire, or automotive power.

The LTC4090 provides a Bat-Track adaptive output that tracks the battery voltage for high efficiency charging from the high voltage input. This 3.95V version of the standard LTC4090 is intended for applications which have extended battery lifetime requirements or those that require high temperature (>60°C) operation or storage under these conditions. A reduced float voltage will trade off initial cell capacity for the benefit of increased capacity retention over the life of the battery. The charge current is programmable and an end-of-charge status output (CHRG) indicates full charge.


	Float Voltage (V)	NTC Hot Threshold	Bat-Track Adaptive HV Output
LTC4090	4.2V	29% V_VNTC	Yes
LTC4090-3	3.95V	32.6% V_VNTC	Yes
LTC4090-5	4.2V	29% V_VNTC	No

Applications

Embedded Automotive Accessories
Personal Navigation Devices
Other USB-Based Handheld Products

Part Models: 2
1ku List Price: Starting From $3.89

Documentation

Data Sheet 1

LTC4090-3: USB Power Manager with 2A High Voltage Bat-Track Buck Regulator Data Sheet 07/12/2017

Reliability Data 1

R540 Reliability Data 03/26/2018

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4090EDJC-3#PBF	22-Lead DFN (6mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4090EDJC-3#TRPBF	22-Lead DFN (6mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 30, 2020 - 20_0244 Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
		PCN20_0244_Form Material_Report Delta Qualification Matrix Qualification Results Summary Other
LTC4090EDJC-3#PBF	PRODUCTION
LTC4090EDJC-3#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Low Voltage Hot Swap Controllers 1
LTC4361-1 LTC4361-2		Overvoltage/Overcurrent Protection Controller
USB Isolators 1
LTM2884	PRODUCTION	Isolated USB Transceiver with Isolated Power

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC4090

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.

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