LTC4090
LTC4090-5

PRODUCTION

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

Part Models: 4
1ku List Price: Starting From $3.89

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Overview

Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 38V Supply (60V Max)
2A Output High Voltage Buck Regulator with Bat-Track^™ Adaptive Output Control (LTC4090)
Internal 215mΩ 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/LTC4090-5 are USB power managers plus high voltage Li-Ion/Polymer battery chargers. The devices control 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/LTC4090-5 also accommodate 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. The LTC4090-5 provides a ﬁxed 5V output from the high voltage input to charge single cell Li-Ion batteries. The charge current is programmable and an end-of-charge status output (CHRG) indicates full charge. Also featured are programmable total charge time, an NTC thermistor input used to monitor battery temperature while charging and automatic recharging of the battery.


	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

HDD-Based Media Players
Personal Navigation Devices
Other USB-Based Handheld Products
Automotive Accessories

Part Models: 4
1ku List Price: Starting From $3.89

Documentation

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#PBF	22-Lead DFN (6mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4090EDJC#TRPBF	22-Lead DFN (6mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4090EDJC-5#PBF	22-Lead DFN (6mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4090EDJC-5#TRPBF	22-Lead DFN (6mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	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#PBF	PRODUCTION
LTC4090EDJC#TRPBF	PRODUCTION
LTC4090EDJC-5#PBF	PRODUCTION
LTC4090EDJC-5#TRPBF	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Battery Monitors & Fuel Gauges 1
LTC2942	NOT RECOMMENDED FOR NEW DESIGNS	Battery Gas Gauge with Temperature, Voltage Measurement
Interface Transceivers & Isolators 1
LTM2884	PRODUCTION	Isolated USB Transceiver with Isolated Power
Protection Switches & Controllers 1
LTC4361-1 LTC4361-2		Overvoltage/Overcurrent Protection Controller

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.

Evaluation Kits

LTC4090EDJC Demo Board | Dual Input USB Power Manager 6V to 36VIN, (60V Transients), Li-Ion Charger, Up to 1.5A IOUT

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Product Details

Demostration circuit DC1210A is a dual (one high voltage, one low voltage) input, USB PowerPath controller with a 36V (60V transients) DC/DC converter plus a Li-Ion battery charger featuring the LTC4090. The 2A buck has an input voltage range of 6V to 36V and it provides an output that is 300mV above the battery voltage. The buck output goes to a low dropout 1.5A CC/CV linear lithium-ion battery charger configured for 700mA output and a 4.2V charge voltage.

Resources

DC1210A - Schematic
9/24/2009

DC1210A - Demo Manual
9/24/2009

DC1210A - Design File
9/24/2009

Latest Discussions

6 Years Ago

LTC4090
LTC4090-5

Overview

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 1

Product Selector Card 1

Solutions Bulletin & Brochure 1