R1810 Series
600 nA Low Quiescent Current Boost DC/DC Converter for Energy Harvester
R1810 Series
600 nA Low Quiescent Current Boost DC/DC Converter for Energy Harvester
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Provides at-a-glance product features, functions, and concepts.
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Description
R1810 Series is a boost DC/DC converter for electrical power storage devices, especially dedicated for 1 cell photovoltaic energy harvester since the start-up voltage is Typ. 0.35V.
This product can start up with only 9 µW, and applicable for charging 1 cell photovoltaic element. A system which is working under low-illuminance environment can be composed with the R1810 Series.
Key Benefits
- Providing a low quiescent current (IQ_VOUT = Typ. 600 nA), and high efficiency (66%@ IOUT = 5 µA)
- Start up with low input energy, 9 µW (low illuminance) is possible.
- Maximum power point control function is built-in.
Spec
| Standard | |
|---|---|
| Input Voltage Range | 0.35 V to 2.1 V (2.3 V) |
| Operating Temperature Range | -40°C to 85°C (85°C) |
| Operating Quiescent Current | Typ. 600 nA (Ta = 25°C, at no load)) |
| Output Voltage Range | 2.3 V to 4.5 V |
| Output Voltage Accuracy | ±5% (Ta = 25°C) |
| Package | WLCSP-15-P1, DFN2735-14 |
| Start-up power | 9 µW |
| Maximum Power Point Control Voltage Setting | 0.2 V to 2.1 V, in 50 mV increments |
Protections / Functions
| TSD | OCP | OVP | UVLO | OVLO | Reverse | Shutdown | Soft Start | SSCG | PGOOD | Auto Discharge | Anti-ringing | Sequencing | Max Duty | Ext. Phase | LED Adjust |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Functional Description
| TSD | Thermal Shutdown Function |
|---|---|
| OCP | Overcurrent Protection Note: The function previously labeled as "ILX (LX Current Limit Function)" is now shown as "OCP." |
| OVP | Overvoltage Protection |
| UVLO | Undervoltage Lockout Protection |
| OVLO | Overvoltage Lockout Protection |
| Reverse | Reverse Current Protection Circuit |
| Shutdown | Shutdown Function |
| Soft Start | Soft Start Function |
| SSCG | Spread Spectrum Clock Generator Function |
| PGOOD | Power Good Output |
| Auto Discharge | Auto Discharge Function |
| Anti-ringing | Anti-ringing Switch Function |
| Sequencing | Start-up Sequencing Control |
| Max Duty | Maximum Duty Cycle |
| Ext. Phase | Externally Adjustable Phase Compensation |
| LED Adjust | LED High-speed Dimming Control |
Technical Documents
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Typical Application
L = 22 µH, CIN = 22 µF, CCP = 22 nF, CREG = 4.7 µF, COUT = 4.7 µF
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Efficiency vs. Output Current
VIN = 0.5 V, VSET = 2.6 V
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Related Links
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| R1810Zxxxx-E2-T |
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WLCSP-15-P1 | See datasheet | R1810Z-T |
| R1810Lxxxx-E2 |
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DFN2735-14 | See datasheet | R1810L |
- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
FAQ
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support
R1810 Series