LTC3337ACBZ-R7 Nanopower IC with Ultra-Low Power Consumption Precision Coulomb Counter and Comprehensive SOH Monitoring
Specifications
Manufacturer:
Analog Devices Inc.
Product Number:
LTC3337ACBZ-R7
Description:
PRIMARY BAT SOH MONITOR & PREC C
Highlight:
nanopower IC ultra-low power
,precision coulomb counter IC
,SOH monitoring integrated circuit
Introduction
LTC3337ACBZ-R7 Nanopower Primary Battery State of Health Monitor
The LTC3337ACBZ-R7 is a nanopower primary battery State of Health (SOH) monitor integrated circuit (IC) designed by Analog Devices, featuring a built-in precision coulomb counter.
Core Features
- Ultra-Low Power Consumption: Operates with a quiescent current of only 100nA, minimizing power consumption and maximizing the operating time of primary batteries in low-power applications.
- Precision Coulomb Counter: Equipped with a patented infinite dynamic range coulomb counter that accurately tallies all accumulated battery discharge and stores the data in internal registers accessible via the I²C interface.
- Comprehensive SOH Monitoring: Integrates monitors for battery voltage, battery impedance, and temperature, which are measured and reported to the host system through the I²C interface.
- Selectable Peak Input Current Limits: Offers 8 selectable peak input current limits (5mA to 100mA) via pin configuration, adapting to a wide range of primary battery inputs.
- Dual Current Counting Options: Coulomb counting can be performed on either the BAT_IN (primary battery current) or BAT_OUT (load current) pin.
- Supercapacitor Balancer: Integrates a ±10mA supercapacitor balancer, providing support for applications using a stack of two optional supercapacitors at the output.
- Programmable Functions: Features a programmable coulomb counter prescaler and a programmable discharge alarm threshold with interrupt output.
- Wide Input Voltage Range: Supports a battery input voltage range of 1.8V to 5.5V, compatible with various primary battery types.
- Compact Package: Available in a tiny 16-ball 1.64mm * 1.64mm WLCSP package with an operating temperature range of -40°C to 125°C.
- Standard Communication Interface: Adopts an I²C two-wire interface for convenient communication with the host system.
Typical Applications
- Low-Power Primary Battery-Powered Systems
- Remote Industrial Sensors
- Asset Trackers
- Electronic Door Locks
- Keep-Alive Supplies & Battery Backup
- SmartMesh® Applications
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