The DS2740 remains in production, however, for new projects, we recommend ModelGauge m5 MAX17211 fuel gauge.The DS2740 provides high-precision current-flow measurement data to support battery-capacity monitoring in cost-sensitive applications. Current is measured bidirectionally over a dynamic range of 15 bits (DS2740U) or 13 bits (DS2740BU), with the net flow accumulated in a separate 16-bit register. Through its 1-Wire® interface, the DS2740 allows the host system read/write access to status and current measurement registers. Each device has a unique factory-programmed 64-bit net address that allows it to be individually addressed by the host system, supporting multibattery slot operation. The interface can be operated with standard or overdrive timing.
|Part Number||Functions||Battery Type||Interface||Parameters Measured||Applications||VSUPPLY|
|-40 to +85||$1.79 @1k|
|See All Battery Monitors, Protectors, and Selectors (51)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|App Note||5507||Understanding the DS1WM Synthesizable 1-Wire Bus Master|
|App Note||3092||Alternate DS2740U Application Circuit with Reduced Current Measurement Offset Error|
|App Note||2420||1-Wire Communication with a Microchip PICmicro Microcontroller|
|App Note||2096||DS2740 High-Precision Coulomb Counter Reference Design|
|App Note||1919||Increasing the Fuel Gauge Dynamic Range|
|Tutorial||214||Using a UART to Implement a 1-Wire Bus Master|
|App Note||187||1-Wire Search Algorithm|
|Tutorial||148||Guidelines for Reliable Long Line 1-Wire Networks|