Industrial

bq2054 is a lithium battery fast charge IC produced by bq company, which can safely charge lithium batteries. It has the functions of voltage regulation current limited charging, fast charging terminated by selectable minimum current, safety backup termination on maximum time, charging continuously qualified by temperature and voltage limits, pulse width modulation control ideal for high efficiency switch mode power conversion, direct LED control outputs display charge status and fault conditions.

The bq2052 Lithium Primary Gas Gauge IC is intended for battery-pack or in-system installation to maintain an accurate record of available battery capacity. The IC monitors a voltage drop across a sense resistor connected in series with the cells to determine discharge activity of the battery. The bq2052 applies compensations for battery temperature and discharge rate to the available charge counter to provide available capacity information across a wide range of operating conditions. Compensated available capacity may be directly indicated using an LED display. The LED display is programmable and can be configured as two, four, or five segments. These segments are used to depict available battery capacity. The bq2052 supports a single-wire serial communications link to an external micro-controller. The link allows the micro-controller to read

bq2050h li-ion battery pack power gauge evaluation system, including evaluation system, evaluation software, battery connection circuit, power gauge circuit and so on

The bq2050h is a high precision lithium ion battery capacity counter that can be used for battery packs or system integration. It has low power consumption, high integration, high accuracy, and high reliability.

bq2050 Lithium Ion Power Gauge™ IC is intended for battery-pack or in-system installation to maintain an accurate record of available battery capacity.

The bq2040 gas gauge IC with SMBus interface is intended for battery pack or in-system installation to maintain an accurate record of available battery charge. The bq2040 directly supports capacity monitoring for NiCd, NiMH, and Li-Ion battery chemistries. The bq2040 uses the System Management Bus v1.0 (SMBus) protocol and supports the Smart Battery Data (SBData) commands. The bq2040 also supports the SBData charge control functions. Battery state-of-charge, remaining capacity, remaining time, and chemistry are available over the serial link. Battery-charge state can be directly indicated using a four-segment LED display to graphically depict battery full-to-empty in 25% increments. The bq2040 estimates battery self-discharge based on an internal timer and temperature sensor and user-programmable rate information stored in external EEPROM. The bq2040 also automatically re-calibrates or “learns” battery capacity in the full course of a discharge cycle from full to empty.

The bq2031 is a lead-acid battery fast charge ic that can achieve constant voltage, constant current or pulsed current charging, and can set the regulator frequency by an external capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum, suitable for high charge current applications. A charge cycle begins when power is applied or the battery is replaced. For safety, charging is inhibited until the battery voltage is within the configured limits.

This is an advanced battery monitoring IC that accurately measures the charge and discharge currents in rechargeable battery packs. Intended for pack integration, the bq2023 contains all the necessary functions to form the basis for an accurate battery gas gauge in cellular phones, PDAs or other portable products.

The bq2022 is a 1K-bit serial EPROM containing a factory programmed unique 48-bit ID number, 8-bit CRC generation and the 8-bit family code (09h). A 64-bit status register controls write protection and page redirection. The bq2022 SDQ interface (TI’s proprietary serial communications protocol) requires only a single connection and a ground return. The DATA pin is also the sole power source for the bq2022. The bus architecture allows multiple SDQ devices to be connected to a single host. The small surface-mount package options saves printed-circuit-board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product-revision status and access-code security.

The 74LCX138 is a high-speed 1-of-8 decoder/demultiplexer fabricated with advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. This device is ideally suited for high-speed memory chip select address decoding and supports 2.3V to 3.6V VCC specifications.

bq2019 is a battery monitoring IC released by Texas Instruments. It is mainly used in portable applications such as mobile phones, PDAs or other portable products. The chip can measure the charge and discharge currents of the battery and provides 64 bytes of general-purpose flash storage space for storing battery data.

The 74LCX138 is a low voltage CMOS 3 TO 8 line decoder (inverting) fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and high speed 3.3V applications; it can be interfaced to 5V signal environment for inputs. If the device is enabled, 3 binary select inputs (A, B and C) determine which one of the outputs will go low. If enable input G1 is held low or either G2A or G2B is held high, the decoding function is inhibited and all the 8 outputs go to high. Three enable inputs are provided to ease cascade connection and application of address decoders for memory systems. It has same speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

The bq2018 Power Minder is a complete evaluation system for the bq2018 Power Minder IC. It works with any battery pack chemistry and capacity and directly connects to the battery pack. It includes PC software and an interface board for easy evaluation.

The 74LCX139 is a low voltage CMOS DUAL 2 TO 4 LINE DECODER/DEMULTIPLEXER suitable for low power and high speed 3.3V applications. It can be interfaced to 5V signal environment for inputs. The product features 5V tolerant inputs, high speed propagation delay, power down protection on inputs and outputs, and symmetrical output impedance.