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
Imagination positions itself for 802.11ah for the Internet of Things
July 24, 2014
Imagination Technologies has developed a low power configurable radio architecture for the wide range of existing and emerging ...
Smartwatches suck, says Pebble backer
Broadcom cuts 2,500 jobs to exit cellular market
Photographic method to survey magnetic field
Signal Integrity guru puts comprehensive SI training online
Failed merger talks won't stop Dialog
July 23, 2014
AMS, formerly known as Austriamicrosystems, and Dialog Semiconductor couldn't agree the terms of a merger, which feels like ...
Peregrine Semiconductor and RF Micro Devices settle all litigation
Atomic clock based on a chip-scale frequency comb
RFID tags track honey bees
- Testing GPS with a Simulator
- DSM presents: Select the best plastic for DDR4
- Dual 13A μModule Regulator with Digital Interface for Remote Monitoring & Control of Power
- Exploring the Business Model Evolution of High-Tech Equipment Manufacturers
InterviewCEO interview: China, not Apple, is way to go, says mCube CEO
Ben Lee, CEO of MEMS startup mCube, explains why he wants to spend $37 million on being a supplier of sensors to Chinese ODMs and avoiding a design win with Apple or Samsung.
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, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
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.