Datasheet LTC3330 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender |
| 页数 / 页 | 32 / 1 — FEATURES. DESCRIPTION. Dual Input, Single Output DC/DCs with Input. … |
| 文件格式/大小 | PDF / 545 Kb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Dual Input, Single Output DC/DCs with Input. Prioritizer
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LTC3330 Nanopower Buck-Boost DC/DC with Energy Harvesting Battery Life Extender
FEATURES DESCRIPTION
n
Dual Input, Single Output DC/DCs with Input
The LTC®3330 integrates a high voltage energy harvesting
Prioritizer
power supply plus a DC/DC converter powered by a primary n
Energy Harvesting Input: 3.0V to 19V Buck DC/DC
cell battery to create a single output supply for alternative n
Primary Cell Input: 1.8V to 5.5V Buck-Boost DC/DC
energy applications. The energy harvesting power sup- n
Zero Battery IQ When Energy Harvesting Source is
ply, consisting of an integrated full-wave bridge rectifier
Available
and a high voltage buck converter, harvests energy from n
Ultralow Quiescent Current: 750nA at No-Load
piezoelectric, solar, or magnetic sources. The primary cell n
Low Noise LDO Post Regulator
input powers a buck-boost converter capable of opera- n Integrated Supercapacitor Balancer tion down to 1.8V at its input. Either DC/DC converter n Up to 50mA of Output Current can deliver energy to a single output. The buck operates n Programmable DC/DC and LDO Output Voltages, when harvested energy is available, reducing the quiescent Buck UVLO, and Buck-Boost Peak Input Current current draw on the battery to essentially zero, thereby n Integrated Low Loss Full-Wave Bridge Rectifier extending the life of the battery. The buck-boost powers n Input Protective Shunt: Up to 25mA at VIN ≥ 20V VOUT only when harvested energy goes away. n 5mm × 5mm QFN-32 Package A low noise LDO post regulator and a supercapacitor balancer are also integrated, accommodating a wide range
APPLICATIONS
of output storage configurations. Voltage and current set- n Energy Harvesting tings for both inputs and outputs are programmable via n Solar Powered Systems with Primary Cell Backup pin-strapped logic inputs. The LTC3330 is available in a n Wireless HVAC Sensors and Security Devices 5mm × 5mm QFN-32 package. n Mobile Asset Tracking L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION Extended Battery Life with
AC1 AC2 PIEZO 22µH
Energy Harvesting
+ 3V TO 19V MIDE VIN SW SOLAR V25W 22µF 1µF LTC3330 22µH PANEL VOUT 25V 6.3V SWA 50mV/DIV – AC-COUPLED 4.7µF, 6.3V CAP SWB V 1.8V TO 5V IN2 VOUT 50mA EH_ON LDO_IN 2V/DIV 47µF 0V BAT SCAP 10mF 6.3V + 2.7V PRIMARY 4.7µF BAL ACTIVE ENERGY CELL 6.3V IBAT HARVESTER 1.8V TO 5.5V 3 10mF OUT[2:0] 100mA/DIV 2.7V REDUCES BATTERY CURRENT TO ZERO 3 LDO[2:0] EH_ON 0A 3 OPTIONAL IPK[2:0] PGVOUT 200µs/DIV 3330 TA01b BAT = 3.6V 4 UV[3:0] PGLDO VOUT = 1.8V ILOAD = 50mA LDO_EN LDO_OUT 1.2V TO 3.3V 50mA V GND IN3 1µF 22µF 6.3V 6.3V 3330 TA01a 3330fc For more information www.linear.com/LTC3330 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Package Description Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
Dual Input, Single Output DC/DCs with Input
The LTC®3330 integrates a high voltage energy harvesting
Prioritizer
power supply plus a DC/DC converter powered by a primary n
Energy Harvesting Input: 3.0V to 19V Buck DC/DC
cell battery to create a single output supply for alternative n
Primary Cell Input: 1.8V to 5.5V Buck-Boost DC/DC
energy applications. The energy harvesting power sup- n
Zero Battery IQ When Energy Harvesting Source is
ply, consisting of an integrated full-wave bridge rectifier
Available
and a high voltage buck converter, harvests energy from n
Ultralow Quiescent Current: 750nA at No-Load
piezoelectric, solar, or magnetic sources. The primary cell n
Low Noise LDO Post Regulator
input powers a buck-boost converter capable of opera- n Integrated Supercapacitor Balancer tion down to 1.8V at its input. Either DC/DC converter n Up to 50mA of Output Current can deliver energy to a single output. The buck operates n Programmable DC/DC and LDO Output Voltages, when harvested energy is available, reducing the quiescent Buck UVLO, and Buck-Boost Peak Input Current current draw on the battery to essentially zero, thereby n Integrated Low Loss Full-Wave Bridge Rectifier extending the life of the battery. The buck-boost powers n Input Protective Shunt: Up to 25mA at VIN ≥ 20V VOUT only when harvested energy goes away. n 5mm × 5mm QFN-32 Package A low noise LDO post regulator and a supercapacitor balancer are also integrated, accommodating a wide range
APPLICATIONS
of output storage configurations. Voltage and current set- n Energy Harvesting tings for both inputs and outputs are programmable via n Solar Powered Systems with Primary Cell Backup pin-strapped logic inputs. The LTC3330 is available in a n Wireless HVAC Sensors and Security Devices 5mm × 5mm QFN-32 package. n Mobile Asset Tracking L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION Extended Battery Life with
AC1 AC2 PIEZO 22µH
Energy Harvesting
+ 3V TO 19V MIDE VIN SW SOLAR V25W 22µF 1µF LTC3330 22µH PANEL VOUT 25V 6.3V SWA 50mV/DIV – AC-COUPLED 4.7µF, 6.3V CAP SWB V 1.8V TO 5V IN2 VOUT 50mA EH_ON LDO_IN 2V/DIV 47µF 0V BAT SCAP 10mF 6.3V + 2.7V PRIMARY 4.7µF BAL ACTIVE ENERGY CELL 6.3V IBAT HARVESTER 1.8V TO 5.5V 3 10mF OUT[2:0] 100mA/DIV 2.7V REDUCES BATTERY CURRENT TO ZERO 3 LDO[2:0] EH_ON 0A 3 OPTIONAL IPK[2:0] PGVOUT 200µs/DIV 3330 TA01b BAT = 3.6V 4 UV[3:0] PGLDO VOUT = 1.8V ILOAD = 50mA LDO_EN LDO_OUT 1.2V TO 3.3V 50mA V GND IN3 1µF 22µF 6.3V 6.3V 3330 TA01a 3330fc For more information www.linear.com/LTC3330 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Package Description Revision History Typical Application Related Parts