uModule battery chargers with active current limit deliver 2-A from up to 32-VIN
October 04, 2010 // Paul Buckley
Linear Technology has unveiled the LTM8061 and LTM8062, the first devices in a new family of complete system-in-a-package uModule chargers, supporting an output charge current up to 2 A.
Both parts provide a complete, efficient 1 MHz switching step-down charger solution with as few as just one input capacitor. The LTM8061 features active input-current management to protect against supply rail droop, while providing maximum charge current to the load. The LTM8062 actively manages the output charge current to maximize the power sourced from a solar cell following Maximum Peak Power Tracking (MPPT) principles. The LTM8061 and LTM8062 operate from an input voltage range of 4.95V to 32 V with support for preconditioning, constant-current and constant-voltage mode operation. A 0.5% and 0.75% accurate float voltage respectively ensures maximum energy storage at charge termination set by a minimum current threshold detection or adjustable internal timeout.
The LTM8061 is specifically targeted for charging Li-Ion or Li-polymer batteries with float voltages of 4.1 V, 4.2 V, 8.2 V and 8.4 V. An externally adjustable float voltage allows the LTM8062 to support charging of single-and multi-cell Li-Ion, Li-polymer, Lithium iron phosphate (LiFePO4) and sealed lead acid (SLA) batteries up to 14.4 V.
To maintain the battery at full charge, the LTM8061 and LTM8062 automatically initiate a recharge cycle once the battery voltage drops to 2.5% below the float voltage. Safety features include bad-battery detection and NTC resistor input with fault indicator suitable for use with a LED. An internal input reverse voltage blocking diode is available to prevent leakage current from the battery when the power source is not present.
Packaged in a RoHS compliant 9 mm x 15 mm x 4.32 mm LGA package, pricing for the LTM8061 and LTM8062 starts at 8.85 US Dollars each and 9.85 US Dollars each, respectively in 1,000-piece quantities.
More information about the the LTM8061 and LTM8062 at www.linear.com/8061 and www.linear.com/8062
Visit Linear Technology at www.linear.com
Mouser launch design contest around NXP's dual PCB configurable logic
November 26, 2014
At electronica, NXP Semiconductors N.V. introduced its line of multi-gate, multifunction, dual PCB configurable logic devices ...
Smart PCBs for smaller ECUs: Infineon invests in PCB manufacturer
FTTH solutions for MDUs
Tiny LED makes bionic contact lenses realistic
How does a Blu-ray disc improve solar cell performance?
CEO interview: Vicor powers after higher volume applications
November 26, 2014
Patrizio Vinciarelli, is one of the longest serving CEOs in electronics, having founded Vicor in 1981 and led the company ...
Wireless power receiver enables compact and efficient contactless battery charging
Advanced wheel hub drive passes extensive driving tests
CEO interview: Murata succumbs to IoT temptation
- Power Systems Design eBook
- Halogen-free options and increased performance for terminal blocks
- Wireless Power User Guide
- Secure is the New Smart
InterviewCEO interview: Vicor powers after higher volume applications
Patrizio Vinciarelli, is one of the longest serving CEOs in electronics, having founded Vicor in 1981 and led the company ever since. At Electronica he told EE Times Europe that his company is investing ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Cherry is giving away five of its Energy Harvesting Evaluation kits, worth over 266 Euros each, for EETimes Europe's readers to win. Cherry's energy harvesting technology benefit mostly applications where a complex wire assembly and/or batteries would be inappropriate.
The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.
Most popular news
- Could magnesium battery innovation end lithium's dominance?
- From warm to cool white: colour-temperature tunable LEDs
- Li-Fi communication module wirelessly transfers data at 1-Gbps
- Rebranding the revolution: the future of IoT is embedded
- Supercapacitor innovation promises panel-powered cars in five years