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Silabs EFP01能量友好PMIC解决方案

来源: eccn
2020-09-16
类别:电源管理
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文章创建人 拍明芯城

原标题: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)

  • Single lithium iron phosphate (LiFePO4) rechargeable battery (2.5 to 3.65 V)

  • USB (< 5.5 V)

  EFP01能量友好特性:

  • Provides 4 supply outputs:

  • One Buck/Boost DC-DC Converter

  • One Buck-only DC-DC Converter + LDO

  • One LDO

  • One Switched Output

  • Up to 94% efficiency

  EFP01应用:

  • IoT Sensors and End Devices

  • Metering

  • Home and Building Automation and Security

  • Health and Wellness

  • Wearables

  • Smart Accessories

  • Human Interface Devices

  Feature List

  The EFP01 highlighted features are listed below.

  • VOA

  • Output Voltage: 1.7 V to 5.2 V

  • DCDC A can be configured in Buck/Boost, Buck-only, or Boost-only

  • DCDC A output be combined with the VOC linear regulator for more efficient regulation as the input voltage approaches the output voltage

  • Firmware-programmable switched output (VOA_SW) allows complete powerdown of high leakage external circuitry in low power modes

  • VOB

  • Output Voltage:

  • 0.8 V to 3.3 V (EFP0109/EFP0111)

  • 0.8 V to 1.255 V (EFP0104/EFP0108)

  • DCDC B can be used only in Buck configuration

  • Dedicated internal linear regulator in parallel provides more efficient regulation as the input voltage approaches the output voltage

  • VOC

  • Output Voltage: 1.7 V to 3.3 V

  • Linear regulator only

  • Can be used either to create an independent third output supply or in conjunction with DCDC A

  • Coulomb Counter

  • Lossless (i.e. no sense resistor) measurement of charge into the load

  • Communication & Control

  • Fully configurable I2C

  • Direct Mode supports fast transitions between energy modes

  • IRQ pin to notify host processor

  • Ultra-low Quiescent Current

  • 150 nA with no outputs enabled

  • 300 nA with a single output enabled

  • +125 nA for each additional output enabled

  • Safety

  • Programmable inrush current

  • Short-circuit tolerant outputs

  • Under-voltage lock-out (UVLO) circuitry holds device in lowest power reset state when VDDB is below 1.2 V

  • Over-temperature monitoring and IRQ assertion

  • Wide Operating Range

  • 0.8 V to 5.5 V input power supply

  • -40 to 100 C junction temperature

  • QFN20 3x3 mm Package

  

  图1. EFP01框图

  

  图2. EFP01降压/升压配置图

  

  图3. EFP01有线升压配置图

  

  图4. EFP01单电池升压配置图

  

  图5. EFP01升压自举配置图

  评估板EFP0111 EVK

  The EFP0111 Evaluation Kit is an excellent way to evaluate and characterise the EFP01 Energy Friendly Power Management IC (PMIC) in the Boost Bootstrap configuration.

  The EFP01 is an extremely flexible, highly efficient, multi-output power management IC

  with integrated Coulomb counter for lossless charge measurements. The kit contains an EFP0111 Evaluation Board (BRD8100B), which features an EFP0111 in the Boost Bootstrap configuration. The input and output power rails of the EFP01 are exposed on

  terminal blocks and test points making it easy to evaluate and characterize the EFP01 with external hardware. The board can be plugged into a computer using the USB Micro-

  B connector for conveniently controlling the EFP01s register settings and reading back data. The EFP0111 Evaluation Board is supported in Simplicity Studio and the EFP Configuration Tool.

  The EFP0111 Evaluation Kit (OPN: SLEVK1000B) is an excellent starting point to evaluate and characterize the EFP01 Energy Friendly Power Management IC (PMIC) in the Boost Bootstrap configuration. The EFP01 is an extremely flexible, highly efficient, multi-output power management IC with integrated Coulomb counter for lossless charge measurements.

  The kit contains an EFP0111 Evaluation Board (BRD8100B), which features an EFP0111 in the Boost Bootstrap configuration. The input and output power rails of the EFP01 are exposed on terminal blocks and test points instead of powering the host MCU, making it

  easy to evaluate and characterise the EFP01 with external hardware. The board can be plugged into a computer using the USB Micro-B connector for conveniently controlling the EFP01s register settings and reading back data. Writing and reading registers is handled

  through the host MCU, which is embedded on the board and connected to the digital interface of the EFP01. An on-board SEGGER JLink debugger provides the host MCU with a virtual COM port and debugging capabilities on the USB connector.

  The EFP0111 Evaluation Board is supported in Simplicity Studio and the EFP Configuration Tool.

  TARGET DEVICE

  • EFP0111 multi-output PMIC in Boost Bootstrap configuration

  评估板EFP0111 EVK主要特性:

  • Wire to board terminal blocks for EFP0111 input and output power connections

  • Test points for easy probing

  • Host MCU with two push buttons and three LEDs

  • Convenient control of the EFP from a computer

  支持软件

  • Simplicity Studio

  • EFP Configuration Tool

  

  图6. 评估板EFP0111 EVK外形图

  Kit Contents

  The following items are included in the box:

  • 1x EFP0111 Evaluation Board (BRD8100B)

  • 1x USB 2.0 AM to Micro BM cable

  

  图7. 评估板EFP0111 EVK框图

  

  图8. 评估板EFP0111 EVK硬件布局图

  

  图9. EFP0104参考电路

  

  图10. EFP0108参考电路

  

  图11. EFP0109参考电路

  

  图12. EFP0111参考电路


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