Battery stack monitor controls HEV and backup systems

Battery stack monitor controls HEV and backup systems

Multicell IC measures up to 12 individual battery cells

A highly integrated multicell battery-monitoring IC, the LTC6802 measures up to 12 individual battery cells. These long battery strings enable high-power rechargeable applications for electric and hybrid electric vehicles (HEVs), scooters, motorcycles, golf carts, wheelchairs, boats, forklifts, robotics, portable medical equipment, and UPS systems. Its proprietary design allows multiple devices to be stacked in series without optocouplers or isolators, for precision voltage monitoring of every cell in long strings of series-connected batteries.

The monitor IC measures all cell voltages, even in the presence of stack voltages over 1,000 V within 13 ms. The maximum total measurement error is

The monitoring device targets environmental and reliability situations for automotive and industrial applications. The device has temperature sensor inputs, and a built-in 3-V reference and 5-V regulator. It offers diagnostics and fault detection in an 8 x 12-mm, 44-lead SSOP package. ($9.95 ea/1,000 samples, demonstration boards available now.)

Linear Technology , Milpitas , CA
Information 408-432-1900
http://www.linear.com