Industry`s Most Efficient Nano Power Harvesting

Industry’s Most Efficient Nano Power
Harvesting Solutions
Extract and manage µW to mW
Overview
Energy harvesting with breakthrough TI technology allows the development of
systems that extract and manage nano power from a variety of sources such as
solar, thermal electric, electromagnetic, and vibration energy. With the reality of yearslong battery life, TI technology enables new applications that are simply not possible
with traditional battery-powered systems. From solar-powered sensors for wireless
monitoring of factories or farms to using body heat to power sensors on medical and
fitness equipment, TI and leading energy harvesting partners are creating a complete
ecosystem for designers to envision and create a battery-less world.
From low power to no power, TI delivers the most efficient energy harvesting technology
• Low quiescent currents (350 na typical)
• >90% conversion efficiency even at currents as low as 15 µA
• User-programmable devices with Maximum Power Point Tracking (MPPT) for optimized extraction
• Cold start capability for very low input conditions
ti.com/energyharvestingICs
2013
Industry’s Most Efficient Nano Power Harvesting Solutions
Featured Energy Harvesting ICs
Product
Description
bq25505
Ultra-low power boost converter with battery management and autonomous power path multi-plexing
bq25504
Ultra-low power boost converter with battery management
bq25570
Ultra-low power boost converter with battery management and buck output regulation
TPS62736/37
Ultra-low Iq nano-buck regulators
bq25504EVM-674
Evaluation module for bq25504 ultra-low-power boost converter
TPS62736EVM-205
Evaluation module for TPS62736 programmable output ultra-low-power buck converter
TPS62736 Efficiency at 2.5 V Regulation L = 10 µH, VIN = 3.0 V
100
90
95
80
90
70
85
60
Efficiency (%)
Efficiency (%)
bq25504 Efficiency vs VIN, (IIN = 100 µA) VSTOR = 3.0 V
100
50
40
30
80
75
70
65
20
60
10
55
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
3
50
0.001
0.01
0.1
1
10
bq25504
bq25570
Nano Power
Ultra-low power boost converter with
Boost
Charger
battery management
Key Features
• High-efficiency DC/DC boost converter/charger
• Programmable dynamic Maximum Power Point Tracking
(MPPT) with cold start feature
• Flexible energy storage options
• Battery charging and protection
Ultra-low power boost converter with
battery management and buck output regulation
Key Features
• High efficiency DC/DC boost converter/charger
with built-in buck regulation
• MPPT with cold start feature
• Flexible energy storage options
• Battery charging and protection
bq25505
TPS62736/37
Ultra-low power boost converter with
battery management and autonomous
power path multi-plexing
Key Features
• High-efficiency DC/DC boost converter/charger
with MPPT
• Autonomous multiplexing for primary and
secondary power
• Flexible energy storage options
• Battery charging and protection
100
IOUT (mA)
VIN (V)
Nano Power
Boost
Charger
Programmable output Nano-Power
buck converters with 50 mA load capability
Key Features
• High-efficiency (>90% at 15 µA) buck regulators
with programmable output regulation
• Ultra-low active current (350 nA)
• Pass mode option
• Two power-off states, including Input Power
Good indication
Nano Power
Boost
Charger
Nano Power
Buck Charger
For more information, visit ti.com/energyharvestingICs
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