Data sheet: LTC3300-1 bidirectional multi-cell battery balancer from Linear Technology
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LTC3300-1 data sheet
Linear Technology is offering the LTC3300-1, a bidirectional multi-cell battery balancer designed for equalising cell state of charge (SoC) in a series-connected battery stack. With the LTC3300-1, applications such as electric vehicles (EVs), plug-in hybrid EVs and large energy storage systems using cells with mismatched capacities are no longer limited by the lowest-capacity cell in the stack.
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Transformers have parasitic components that can cause them to deviate from their ideal characteristics, and the parasitic capacitance associated with the secondary can cause large resonating current spikes on the leading edge of the switch current waveform. These spikes can cause the regulator to exhibit erratic operating conditions that manifests itself as duty-cycle instability. Attention to transformer design will cure this problem.
Linear Technology has released the LTC3639, a 150V input-capable synchronous buck converter that delivers up to 100mA of continuous output current. The device’s internal high side and synchronous power switches, drawing only 12µA at no load while maintaining output voltage regulation, make it suitable for always-on battery-powered applications.
The LTC3639 from Linear Technology is a 150V input-capable synchronous buck converter that delivers up to 100mA of continuous output current.
According to Linear Technology, the safe, fast charging of nickel cadmium (NiCad) batteries is required for many applications. A short charge time requires high current. A potential difficulty with high-current charging is battery heating. Excessive internal heating degrades the battery and can cause gas venting to the outside atmosphere. Fast charge schemes based on monitoring cell voltage during charge suffer because cell voltage is not necessarily indicative of the battery’s charge ...
Linear Technology has launched the LTM4637, a 20A DC/DC step-down µmodule regulator suitable for applications such as industrial and medical equipment and networking and telecommunications systems.