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MB39C831 Datasheet

Ultra Low Voltage Boost Power Management IC

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MB39C831
Ultra Low Voltage Boost Power Management IC
for Solar/Thermal Energy Harvesting Datasheet
Description
The MB39C831 is the high-efficiency synchronous rectification boost DC/DC converter IC which efficiently supplies energy
getting from the solar cell with the single cell or multiple cells, or from the thermoelectric generator (TEG) to the Li-ion battery.
It contains the function to control the DC/DC converter output following the maximum power point of the solar cell (MPPT:
Maximum Power Point Tracking) and the protection function to charge the Li-ion battery safely.
It is possible to start-up from 0.35 V using the low-voltage process and adapts the applications which the single cell solar cell is
treated as the input.
Features
Operation input voltage range : 0.3V to 4.75V
Output voltage adjustment range : 3.0V to 5.0V
Minimum input voltage at start-up : 0.35V
Quiescent Current (No load) : 41 μA
Input peak current limit : 200 mA
Built-in MPPT
Charge voltage to the Li-ion battery/current protection function built in
Improvement of the efficiency during the low-output power according to the auto PFM/PWM switching mode
Applications
Solar energy harvesting
Thermal energy harvesting
Li-ion battery using the single cell or multiple cells' solar cell/Super Capacitor Charger
Portable audio players
Cellular phone
eBook
Electronic dictionary
Wireless remote controllers
Sensor node
Note: This product supports the web-based design simulation tool, Easy DesignSim.
It can easily select external components and can display useful information.
Please access from http://cypress.transim.com/login.aspx
Cypress Semiconductor Corporation
Document Number: 002-08404 Rev *A
• 198 Champion Court • San Jose, CA 95134-1709 •
408-943-2600
Revised February 4, 2016


Cypress Semiconductor Electronic Components Datasheet

MB39C831 Datasheet

Ultra Low Voltage Boost Power Management IC

No Preview Available !

MB39C831
Contents
1. Pin Assignments ....................................................................................................................................3
2. Pin Descriptions .....................................................................................................................................4
3. Block Diagram ........................................................................................................................................5
4. Absolute Maximum Ratings ..................................................................................................................6
5. Recommended Operating Conditions ..................................................................................................7
6. Electrical Characteristics.......................................................................................................................7
6.1 Electrical Characteristics of Constant Voltage Mode ......................................................................7
6.2 Electrical Characteristics of Charge Mode ...................................................................................8
6.3 Electrical Characteristics of Boost DC/DC Converter .....................................................................8
7. Function ..................................................................................................................................................9
7.1 Outline of Operation .................................................................................................................9
7.2 Start-up/Shut-down Sequence ...................................................................................................9
7.3 MPPT Control .......................................................................................................................12
7.4 Function Description ..............................................................................................................14
8. Typical Applications Circuit.................................................................................................................18
9. Application Notes.................................................................................................................................21
10. Typical Characteristics ........................................................................................................................23
11. Layout for Printed Circuit Board .........................................................................................................28
12. Usage Precaution .................................................................................................................................29
13. Ordering Information............................................................................................................................29
14. Marking..................................................................................................................................................29
15. Product Labels .....................................................................................................................................30
16. Recommended Mounting Conditions .................................................................................................34
17. Package Dimensions............................................................................................................................36
Major Changes .............................................................................................................................................37
Document Number: 002-08404 Rev *A
Page 2 of 40


Part Number MB39C831
Description Ultra Low Voltage Boost Power Management IC
Maker Cypress Semiconductor
Total Page 30 Pages
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