> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Sunflower: Solar Power Manager 5V **Type:** Product page · **SKU:** DFR0559 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia) **Page:** https://core-electronics.com.au/sunflower-solar-power-manager-5v.html ([markdown](https://core-electronics.com.au/sunflower-solar-power-manager-5v.html.md)) DFRobot is launching a brand new series - Sunflower, focusing on high-efficiency, small power solar energy management for IoT projects and renewable energy applications... ## Pricing - **Price:** $13.35 (inc GST) — $12.14 AUD, exc GST - **Quantity discounts:** 6+ $11.53 (exc GST) · 12+ $11.05 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 25 today, and up to 2300 more in 8–12 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0559:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DFR0559:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description DFRobot is launching a brand new series - Sunflower, focusing on high-efficiency, small power solar energy management for [IoT projects](https://www.dfrobot.com/category-projects.html?search=Iot) and renewable energy applications. | Feature | [Solar Power Manager 5V](https://core-electronics.com.au/sunflower-solar-power-manager-5v.html) | [Solar Power Manager (9V/12V/18V)](https://core-electronics.com.au/sunflower-solar-power-manager-9v-12v-18v.html) | [Solar Power Manager for 12V Lead-Acid](https://core-electronics.com.au/solar-power-manager-for-12v-lead-acid-battery.html) | [Micro Solar Power Manager](https://core-electronics.com.au/solar-power-manager-micro-2v-160ma-solar-panel-included.html) | |---|---|---|---|---| | **SKU** | DFR0559 | DFR0535 | DFR0580 | DFR0579 | | **Solar Power Management IC** | CN3165 | LTC3652 | CN3767 | SPV1050 | | **Solar Input Voltage** | 4.4V–6V | 7V–30V | 15V–25V | 0.5V–4V | | **Max Charge Current** | 900mA (Solar/USB) | 2A (Solar/USB) | 4A (Solar) | 70mA (Solar) / 100mA (USB) | | **Topology** | Linear Regulator | DC-DC Buck | DC-DC Buck | DC-DC Boost | | **Battery** | 3.7V Lithium | 3.7V Lithium | 12V Lead-Acid | 3.7V Lithium | | **MPPT** | 5V Fixed | 9V/12V/18V Optional | Fixed 18V | 75% Open Voltage | | **Battery Protections** | Over Charge/Over Discharge/Over Current/Reverse Connection | Over Charge/Over Discharge/Over Current/Reverse Connection | Over Charge/Over Discharge/Reverse Connection | Over Charge/Over Discharge/Reverse Connection | | **Output Protections** | Short Circuit/Over Current | Short Circuit/Over Current/Over Heat | Short Circuit/Over Current/Over Heat | Short Circuit/Over Current | | **USB Charge IN** | Yes | Yes | No | Yes | | **USB OUT** | 5V 1A | 5V 1.5A | 5V 2.5A ×2 | No | | **Regulated OUT** | 5V 1A | 3.3V 1A; 5V 1.5A; 9V/12V 0.5A | 5V 5A; 12V 8A | 3.3V 90mA | | **Dimensions** | 33.0mm × 63.0mm | 78.0mm × 68.0mm | 68.0mm × 68.0mm | 30.0mm × 30.0mm | | Features | Small 5V solar module. Applications: Power Bank, Monitors For 5V panels ≤10W | Multifunction 9V/12V/18V module. Applications: Lamps, Robots For panels ≤20W | 12V Lead-Acid support. Applications: Lighting, AgTech, UPS For 18V panels ≤100W | Micro solar module for sensors. Applications: WSN, iBeacon For panels ≤0.5W | Solar Power Manager 5V is a small power and high-efficiency solar power management module designed for 5V solar panel. It features as MPPT (Maximum Power Point Tracking) function, maximizing the efficiency of the solar panel. Apart from serving as a solar charger, the module can provide up to 900mA charging current to 3.7V Li battery with USB charger. The ON/OFF controllable DC-DC converters with 5V 1A output satisfies the needs of various solar power projects and low-power applications. The module also employs various protection functions, such as battery/solar panel reverse connection protection, output over temperature and over current/short circuit protection, which greatly improves the stability and safety of the system. **Board Overview** ![](https://image.dfrobot.com/image//data/DFR0559/DFR0559_front.png) Solar Power Manager 5V interfaces (front) ![](https://image.dfrobot.com/image//data/DFR0559/DFR0559_back.png) Solar Power Manager 5V interfaces (back) **Connection Diagram** ![](https://image.dfrobot.com/image//data/DFR0559/DFR0559_App.png) Build a solar powered system **FEATURES** - Constant voltage MPPT algorithm, maximizing solar panel efficiency - Designed for 5V solar panel - Double charging mode: solar/USB charger (900mA max charge current) - 5V ON/OFF controllable regulated power supply for low-power applications - Various protection functions - USB connector with ESD shell ### Applications - Smart solar environment monitor system - Solar powered robot - Small solar street lamp - Solar power bank ### Specification - Solar power management IC: CN3065 - Solar input voltage (SOLAR IN): 4.5V~6V - Battery input (BAT IN): 3.7V single cell Li-polymer/Li-ion battery - Charge current(USB/SOLAR IN): 900mA Max trickle charging, constant current, constant voltage three phases charging - Charging cutoff voltage(USB/SOLAR IN): 4.2V±1% - USB IN voltage: 5V - Regulated power supply: 5V 1A - Regulated Power Supply Efficiency (3.7V battery IN): 86%@50%Load - USB/solar charge efficiency: 73%@3.7V 900mA BAT IN - Maximum quiescent current: <1 mA - Protection functions - BAT IN: Overcharge/reverse connection protection - 5V/USB OUT: short circuit/over current/overheat protection - SOLAR IN: reverse connection protection - Operation temperature: -40°C ~ 85°C - Dimension: 33.0mm\*63.0mm ### Documents - [Product wiki](https://wiki.dfrobot.com/Solar_Power_Manager_5V_SKU__DFR0559) - [More Documents](https://wiki.dfrobot.com/Solar_Power_Manager_5V_SKU__DFR0559#target_11) ### Parts List - Solar Power Manager 5V x1 - 2.54mm Black Jumper x1 - M3\*10mm Nylon Pillar x4 - M3\*5mm Stainless Steel Screw x4 - 14\*14\*7mm Black Aluminum Cooling Fin x1 - 14\*14\*0.5mm Thermal Conductive Silicone Pad x1 ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/1/_/1_5_4.jpg)