Solar Power Manager Micro is a micropower, high-efficiency solar power management module, designed for powering IoT based low-power Wireless sensors or controllers with 1V~3V small size Solar panels. Benefited from its extremely low power dissipation and  MPPT (maximum power point tracking), the module is able to maximize the conversion efficiency of solar energy under weak sunlight. These features make low-power wireless devices charge-free and battery replacement-free possible by pure solar power.

The module employs constant voltage ratio MPPT (Maximum Power Point Tracking) algorithm to maximize output power of the solar panel under various sunlight. It can charge a 3.7V lipo battery through solar or USB, providing charge current up to 70mA or 100mA respectively. A 3.3V 90mA regulated output can handle burst current of most low-power wireless devices during transmitting or receiving. In Low Power Projects, lipo battery may suffer from over-discharge problem when it is cloudy for days, or the capacity of battery can not meet the device’s need. The battery over-charge and over-discharge protections are designed to prevent such problems to extend battery life.

BOARD OVERVIEW

Solar Power Manager Micro

dBoard Overview

CONNECTION DIAGRAM

Power Micro-bit with Small Solar Panel

Power Firebeetle  with Small Solar Panel

Yes

Solar Power Manager Series

Name	Solar Power Manager v1.0	Solar Power Manager 5v v1.1	Solar Power Manager Micro v1.0	Solar Power Manager v1.0
SKU	DFR0535	DFR0559	DFR0579	DFR0580
Solar Power Management IC	LTC3652	CN3065	SPV1050	CN3767
Solar Input Voltage	7V-30V	4.4V-6V	0.5V-4V	15V-25V
Maximum charge Current	2A(Solar/USB)	900mA(Solar/USB)	70mA(Solar)/100mA(USB)	4A(Solar)
Topology	DC-DC Buck	Linear Regulator	DC-DC Boost	DC-DC Buck
Battery	3.7V Lithium Battery	3.7V Lithium Battery	3.7V Lithium Battery	12V Lead-Acid Battery
MPPT	9V/12V/18V Optional	5V Fixed	75% Open Voltage	Fixed 18V
Battery Protections	Over charge/Over Discharge/Over Current/Reverse Connection Protections	Over charge/Over Discharge/Over Current/Reverse Connection Protections	Over charge/Over Discharge/Reverse Connection Protections	Over charge/Over Discharge/Reverse Connection Protections
Output Protections	Short Circuit/Over Current/Over Heat Protections	Short Circuit/Over Current Protections	Short Circuit/Over Current Protections	Short Circuit/Over Current/Over Heat Protections
USB charge IN	Yes	Yes	No
USB OUT	5V 1.5A	5V 1A	No	5V 2.5A x2
Regulated OUT	Three Regulated Outputs 3.3V 1A；5V 1.5A；9V/12V 0.5A	One Regulated Output 5V 1A	One Regulated Output 3.3V 90mA	Two Outputs 5V 5A; 12V 8A
Dimension	78.0mm×68.0mm	33.0mm×63.0mm	30.0mm×30.0mm	68.0mm×68.0mm
Features	A complete multifunction solar power management module. Applications: Small Solar Street Lamp, Solar Powered Robots  For 9V/12V/18V Solar Panels within20w	A small and easy-to-use 5V solar power management module. Applications: Solar Power Bank, Solar Environment Monitors For 5V Solar Panels within 10W	A micro power solar power management module for low-power sensors and controllers. Applications: Wireless Sensor Network, BLE iBecon For 1V/2V/3V Solar Panels within 0.5W	A medium power solar management module for 12V lead-acid batteries. Applications: Street lighting, intelligent agriculture, environmental monitoring station, UPS For 18V Solar Panels within 100W

Arduino GSM Module Poultry Temperature Project

FEATURES

• Constant voltage ratio MPPT algorithm, maximizing solar power conversion
• Designed for 1V ~ 3V small solar panels, ultra low power design
• Solar/USB two charging methods
• Multiple protections extending battery life

APPLICATIONS

• Wireless Sensor Network
• Bluetooth iBeacon
• Solar Powered Toys

SPECIFICATION

• Micro Solar Power Management Module
• Solar Power Management IC: SPV1050
• Solar Input Voltage (SOLAR IN): 0.5V~4V
• Battery Input (BAT IN): 3.7V Lithium Battery
• Maximum charge Current: 100mA@USB IN；70mA@SOLAR IN
• Over-charge Protection Threshold: 4.2V
• Over-discharge Protection Threshold: 3.1V
• Regulated Power Supply: 3.3V 90mA@BAT IN 3.7V
• Quiescent Current: <3 uA
• Protection Functions
  •        BAT IN: Over-discharge/Over-charge/Reverse Connection Protections
  •        OUT: Short Circuit/Over Current Protections
• Operation Temperature: -40℃～85℃
• Dimension: 30.0mm*30.0mm

Solar Panel 2V 160mA

• Nominal Voltage (VMP): 2V
• Nominal Current (IMP): 160mA
• Open Circuit Voltage (IOC): 2.4V
• Short Circuit Current (ISC): 190mA
• Solar Cell Material: Monocrystalline Silicon
• Other Features: Waterproof, Oil Resistant and Corrosion Resistant
• Dimension: 50mm*50mm

DOCUMENTS

Product wiki

More Documents

SHIPPING LIST

• Solar Power Manager Micro                                                                          x1
• Monocrystalline Silicon Solar Panel 2V 160mA 50*50mm                &nb