LTC4090
LTC4090-5
PRODUCTION
USB Power Manager with 2A High Voltage Bat-Track Buck Regulator
- Part Models
- 4
- 1ku List Price
- Starting From $4.92
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% VVNTC | Yes |
| LTC4090-3 | 3.95V | 32.6% VVNTC | Yes |
| LTC4090-5 | 4.2V | 29% VVNTC | No |
Applications
- HDD-Based Media Players
- Personal Navigation Devices
- Other USB-Based Handheld Products
- Automotive Accessories
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Product Selector Card 1
Brochure 1
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) | ||
| LTC4090EDJC#TRPBF | 22-Lead DFN (6mm x 3mm w/ EP) | ||
| LTC4090EDJC-5#PBF | 22-Lead DFN (6mm x 3mm w/ EP) | ||
| LTC4090EDJC-5#TRPBF | 22-Lead DFN (6mm x 3mm w/ EP) |
| 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) |
||
| 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
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Monitors & Fuel Gauges 1 | ||
| LTC2942 | Obsolete | Battery Gas Gauge with Temperature, Voltage Measurement |
| Hot Swap Controllers 1 | ||
|
LTC4361-1 LTC4361-2 |
Overvoltage/Overcurrent Protection Controller | |
| Interface Transceivers 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.
Evaluation Kits
LTC4090EDJC Demo Board | Dual Input USB Power Manager 6V to 36VIN, (60V Transients), Li-Ion Charger, Up to 1.5A IOUT