Silabs EFP01能量友好PMIC解决方案

Silabs公司的EFP01能量友好电源管理集成电路(PMIC)是极端灵活高效率多输出电源管理IC,提供完整系统电源和对器件EFM32和EFR32器件进行电池库仑计数. EFP01工作电压0.8V到5.5V,而静态电流低到250nA. EFP01支持多种电池包括单个碱性(Zn/MnO2)电池,锌碳或锂-二硫化铁(Li/FeS2)电池或NiMH/NiCd充电电池(0.8V-1.8V),两个碱性电池,

锌碳或锂-二硫化铁(Li/FeS2)电池或NiMH/NiCd充电电池(1.6V-3.6V),单个锂电池(Li/MnO2)(1.8V-3.2V),单个锂亚硫酰氯(Li/SOCl2)电池( 3.0 - 3.65 V),单个锂离子/锂聚合物(LiCoO2)可充电电池(2.7-4.35 V),单个磷酸铁锂充电电池(2.5-3.65 V)以及USB(<5.5V).EFP01提供四种电源:一个降压/升压DC/DC转换器,一个仅降压DC/DC转换器+LDO,一个LDO和一个开关输出,其效率高达94%.主要用在IoT传感器和终端设备,计量仪表,家庭和建筑物自动化与安全,卫生与健康,可穿戴,智能附件,人工接口设备等.本文介绍了EFP01能量友好特性,框图,多种应用框图,以及评估板EFP0111 EVK主要特性,框图和硬件布局图,多种参考电路图.

The EFP01 Energy Friendly Power Management IC (PMIC) is an extremely flexible, highly efficient, multi-output power management IC, providing complete system power and primary cell battery Coulomb counting for EFM32 and EFR32 devices. The EFP01 can operate over a wide input voltage range (0.8 to 5.5 V) with quiescent current as low as 250 nA.

EFP01 can be configured to support the following battery types:

• Single alkaline (Zn/MnO2), zinc-carbon or lithium iron-disulphide (Li/FeS2) primary cells, or NiMH/NiCd rechargeable cells (0.8 to 1.8 V)

• Dual alkaline, zinc-carbon or lithium iron-disulphide (Li/FeS2) primary cells, or NiMH/NiCd rechargeable cells (1.6 to 3.6 V)

• Single lithium (Li/MnO2) primary cells (1.8 to 3.2 V)

• Single lithium thionyl chloride (Li/SOCl2) primary cell (3.0 to 3.65 V)

• Single lithium ion/lithium polymer (typically LiCoO2) rechargeable batteries (2.7 to 4.35 V)