Analog Devices Inc. LTC4020 55V降压-升压型电池充电器
Linear Technology/Analog Devices LTC4020 55V降压-升压型多化学组成电池充电器可在4.5V至55V宽输入电压范围内提供高效率的电池充电，最大电压绝对值为60V。该充电器开发设计为一款高电压电源管理器，实现PowerPath™即时接通型操作，内置有降压-升压型 直流/直流控制器。LTC4020能针对电池充电要求、输入电源限制条件和负载变化无缝地管理电池和转换器输出之间的功率分配。尽管电池完全放电，LTC4020的瞬时接通操作仍可确保系统负载功率。 特性包括具有自动复位功能的失效电池检测和一个用于终止和保护的集成计时器。
特性
- 4.5V to 55V input wide voltage range, up to 55V output (60V absolute maximums)
- Synchronous buck-boost DC/DC controller
- Li-ion and lead-acid charge algorithms
- ±0.5% float voltage accuracy
- ±5% charge current accuracy
- Instant-on for heavily discharged batteries
- Ideal diode controller provides low loss PowerPath when input power is limited
- Input voltage regulation for high impedance input supplies and solar panel peak power operation
应用
- Portable industrial and medical equipment
- Solar-powered systems
- Military communications equipment
- 12V to 24V embedded automotive systems
Typical Application
发布日期: 2017-05-15
| 更新日期: 2023-03-05