LTC3337ERC#TRMPBF

LTC3337 Primary Battery SOH Monitor with Precision Coulomb Counter FEATURES n n n n n n n n n n DESCRIPTION Battery Input Voltage Range: 1.8V to 5.5V 100nA Quiescent Current 8 Primary Battery Peak Input Current Limits: 5mA/10mA/15mA/20mA/25mA/50mA/75mA/100mA SOH Monitor for Primary Battery n Integrated Coulomb Counter (Q) n Additional Monitors for Battery Voltage (V), Battery Impedance (...
развернуть ▼ свернуть ▲

Технические характеристики

показать свернуть
Корпус
Режим функционирования
Тип заряжаемого аккумулятора
Интерфейс данных
Максимальное входное напряжение
Напряжение питания
Максимальный выходной ток
Рабочая температура
Нашли ошибку? Выделите её курсором и нажмите CTRL + ENTER

Файлы 1

показать свернуть
LTC3337 Primary Battery SOH Monitor with Precision Coulomb Counter FEATURES n n n n n n n n n n DESCRIPTION Battery Input Voltage Range: 1.8V to 5.5V 100nA Quiescent Current 8 Primary Battery Peak Input Current Limits: 5mA/10mA/15mA/20mA/25mA/50mA/75mA/100mA SOH Monitor for Primary Battery n Integrated Coulomb Counter (Q) n Additional Monitors for Battery Voltage (V), Battery Impedance (Z), and Temperature (T) Primary Battery Current (BAT_IN) or Load Current (BAT_OUT) is Counted Integrated ±10mA Supercapacitor Balancer Programmable Coulomb Counter Prescaler for Wide Range of Battery Sizes Programmable Discharge Alarm Threshold with Interrupt Output I2C Interface Tiny 12-Lead 2mm × 2mm LFCSP APPLICATIONS n n n n n n Low Power Primary Battery Powered Systems (e.g., 1× LiSOCl2, 2–3× Alkaline) Remote Industrial Sensors (e.g., Meters, Alarms) Asset Trackers Electronic Door Locks Keep-Alive Supplies/Battery Backup SmartMesh® Applications The LTC®3337 is a primary battery state of health (SOH) monitor with a built-in precision coulomb counter. It is designed to be placed in series with a primary battery with minimal associated series voltage drop. The patented infinite dynamic range coulomb counter tallies ALL accumulated battery discharge and stores it in an internal register accessible via an I2C interface. A discharge alarm threshold based on this state of charge (SOC) is programmable. When it is reached, an interrupt is generated at the IRQ pin. Coulomb counter accuracy is constant down to no load. The LTC3337 also integrates additional SOH monitoring which measures and reports via I2C: battery voltage, battery impedance, and temperature. To accommodate a wide range of primary battery inputs, the peak input current limit is pin selectable from 5mA to 100mA. Coulombs can be calculated for either the BAT_IN or BAT_OUT pin, determined by the AVCC pin connection. A BAL pin is provided for applications utilizing a stack of two supercapacitors (optional) at the output. The LTC3337 is offered in a 12-lead 2mm × 2mm LFCSP package. All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. patents, including 9312815. TYPICAL APPLICATION 5 4 + BAT_IN LiSOCl2 3 2 BAT_OUT LTC3337 AVCC DVCC BAL IPK[2:0] 2C I BATOUT_OK GND TO SYSTEM LOAD 100μF 6V COUT = 100µF 3 2 ERROR (%) 3.6V Total Coulomb Counter Error (100mA IPEAK PEAK Setting) 1 0 –1 –2 IRQ –3 –4 3337 TA01a –5 0.01 BAT_IN = 5.5V BAT_IN = 3.6V BAT_IN = 2V 0.1 1 10 BAT_OUT LOAD CURRENT (mA) 100 3337 TA01b Rev. 0 Document Feedback For more information www.analog.com 1 PDF
Документация на серию LTC3337 

LTC3337 (Rev. 0) Primary Battery SOH Monitor with Precision Coulomb Counter

Дата модификации: 09.05.2022

Размер: 1.38 Мб

24 стр.

    Публикации 1

    показать свернуть
    02 февраля 2022
    новость

    Нанопотребляющий измеритель уровня заряда LTC3337 от Analog Devices

    Компания Analog Devices выпустила на рынок новую микросхему контроля состояния батарей с точным счетчиком заряда LTC3337. Ее собственное потребление составляет всего 100 нА. Возможности LTC3337 Микросхема подключается между батареей и нагрузкой и... ...читать

    Внимание! Точность указанного на сайте описания товара не может быть гарантирована. Для получения более полной и точной информации о товаре смотрите техническое описание (Datasheet) на сайте производителя.