The LTC2942 measures battery charge state, battery voltage and chip temperature in handheld PC and portable product applications. Its operating range is perfectly suited for single-cell Li-Ion batteries. A precision coulomb counter integrates current through a sense resistor between the battery?s positive terminal and the load or charger. Battery voltage and on-chip temperature are measured with an internal 14-bit No Latency ??? ADC. The three measured quantities (charge, voltage and temperature) are stored in internal registers accessible via the on-board SMBus/I2C interface.The LTC2942 features programmable high and low thresholds for all three measured quantities. If a programmed threshold is exceeded, the device communicates an alert using either the SMBus alert protocol or by setting a flag in the internal status register.The LTC2942 requires only a single low value sense resistor to set the measured current range. Integrated Sense Resistor LTC2942 No LTC2942-1 Yes Applications Low Power Handheld Products Cellular Phones MP3 Players Cameras GPS

DC1502A: Demo Board for the LTC4359 Ideal Diode Controller with Reverse Input Protection.

DC1503A-B: Demo Board for the LTM2881 Complete Isolated RS485/RS422 µModule Transceiver Plus Power.

DC1532A-E: Demo Board for the LTC2264-14 14-Bit, 40Msps Low Power Dual ADCs.

DC1589A: Demo Board for the LTC4425 Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor.

DC1593A-C: Demo Board for LTC2635-12 Quad 12-Bit I2C VOUT DACs with 10ppm/°C Reference.

Demonstration circuit DC1597A features the LTM8031, a step-down converter certified to meet the EN55022 radiated emissions standard. The LTM8031 is configured to deliver a 3.3V output from a 5V to 36V input with a 750kHz operating frequency. The wide input range supports a variety of input sources, such as automotive batteries, wall adaptors and industrial supplies. Under light load conditions, the LTM8031 enters Burst Mode® operation to deliver high efficiency over a broad current range and maintain low output ripple.

DC1620A-L: Demo Board for LTC2140-14 14-Bit, 25Msps Low Power Dual ADCs.

The LTC4227 offers ideal diode-OR and Hot Swap? functions for two power rails by controlling external Nchannel MOSFETs. MOSFETs acting as ideal diodes replace two high power Schottky diodes and the associated heat sinks, saving power and board area. A Hot Swap control MOSFET allows a board to be safely inserted and removed from a live backplane by limiting inrush current. The supply output is also protected against short-circuit faults with a fast acting current limit and internal timed circuit breaker.The LTC4227 regulates the forward voltage drop across the MOSFETs to ensure smooth current transfer from one supply to the other without oscillation. The ideal diodes turn on quickly to reduce the load voltage droop during supply switchover. If the input supply fails or is shorted, a fast turn-off minimizes reverse-current transients.The LTC4227 allows turn-on/off control, and reports fault and power good status for the supply. Part Overcurrent Fault Start-Up Delay LTC4227-1 Latch Off 100ms LTC4227-2 Retry 100ms LTC4227-3 Latch Off 1.6ms LTC4227-4 Retry 1.6ms Applications Redundant Power Supplies and Supply Holdup Computer Systems and Servers Telecom Networks

The LTC2933 is an EEPROM configurable voltage supervisor which can simultaneously monitor up to six power supply voltage inputs. Each voltage detector offers I2C programmable over/undervoltage thresholds in various ranges and increments.Two general purpose inputs (GPI) can be configured as programmable manual reset (MR), UV disable (UVDIS), margin (MARG) or auxiliary comparator (AUXC) inputs. Three general purpose pins (GPIO) can be configured for input or output operation. When configured as an input, a GPIO pin can be mapped to any other GPIO configured as output. The GPIO pins can also be configured as ALERT or fault outputs. Faults can be configured with programmable delay-on-release times. Output type and polarity are also configurable.Status and history registers log faults and can be polled via the I2C interface. A fault log snapshot is also backed up in internal EEPROM. All parameters are programmable via the I2C interface. Configuration EEPROM supports autonomous operation without additional software.Applications High Availability Computer Systems Network Servers Telecom Equipment Data Storage