LTC4150 - Coulomb Counter/Battery Gas Gauge
- Indicates Charge Quantity and Polarity
- ±50mV Sense Voltage Range
- Precision Timer Capacitor or Crystal Not Required
- 2.7V to 8.5V Operation
- High Side Sense
- 32.55Hz/V Charge Count Frequency
- 1.5μA Shutdown Current
- 10-Pin MSOP Package
The LTC4150 measures battery depletion and charging in handheld PC and portable product applications. The device monitors current through an external sense resistor between the battery’s positive terminal and the battery’s load or charger. A voltage-to-frequency converter transforms the current sense voltage into a series of output pulses at the interrupt pin. These pulses correspond to a fixed quantity of charge flowing into or out of the battery. The part also indicates charge polarity as the battery is depleted or charged.
The LTC4150 is intended for 1-cell or 2-cell Li-Ion and 3-cell to 6-cell NiCd or NiMH applications.
PackagingFor complete and up to date package information and drawings, please refer to our packaging page
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
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Demo BoardsLinear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
|DC756A||LTC4150CMS | Coulomb Counter / Battery Gas Gauge (requires DC590 Controller)||$50.00|
|DC590B||USB Serial Controller for Linear Technology QuikEval Demo Boards||$50.00|
- Battery Chargers
- Palmtop Computers and PDAs
- Cellular Telephones and Wireless Modems
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