Ultra Low Voltage
Boost Power Management IC
for Solar and
Thermal Energy Harvesting
MB39C831
Ultra Low Voltage Boost PMIC,
Maximum Power Point Tracking
Feature
· Input Voltage Range: 0.30V to 4.75V
· Lowest Start-Up Voltage: 0.35V
MB39C831 is a high efficiency, synchronous rectification boost
· Selectable Output Voltages:
DC/DC converter that can charge a Li-ion battery with a single
3.0V, 3.3V, 3.6V, 4.1V, 4.5V, 5.0V
solar cell and a multi-junction solar cell or Thermoelectric
· Quiescent Current (Constant Voltage Mode) :
Generator (TEG). The DC/DC convertor can extract the
32uA(No Load)
maximum power point (MPP) of the power source and safely
· Input Peak Current Limit: 200mA
charges into Li-ion battery with the protection function.
· Maximum Power Point Tracking (MPPT)
MB39C831 can start up from 0.35V also and operates at very
low voltage. As such it is suitable for various applications
driving from a single solar cell.
· Over Voltage/ Current Protection for Charger
· Power-Save Mode:
· QFN40: 6.0mm x 6.0mm x 0.85mm
(Pin pitch 0.5mm)
Item
Conditions
Min
Typ
Max
Unit
Input Start-Up Voltage
VDD (Ta=25°C)
_
0.35
0.50
V
VDD Input Voltage
VDD
0.3
_
4.75
V
Output Voltage Select
MPPT_ENA=L S[2:0]=0h-5h
3.0
5.0
V
Battery Charging Mode
_
41
82
uA
Constant Voltage Mode
_
32
64
uA
Ta
-40
_
+85
o
Quiescent Current
Operating Ambient Temperature
_
C
Note: Green IT Award is an Japanese Prize.
Block diagram
· Photovoltanic Cell
· Thermal Electric Generator(TEG)
CIN
CIN
VDD
VST
LX
VDD
VST
STARTUP
VCC
CSH0
DC/DC
MPPT
LX
STARTUP
VCC
CVCC
VOUT_S
CSH0
DC/DC
MPPT
VOUT
VOUT_S
VOUT
CSH1
CSH1
FB
CSH2
MPPT_IN
ENA
MPPT_OUT
MPPT_ENA
S0,S1,S2
CVCC
COUT
CSH2
Li-ion
Battery
MPPT_IN
ENA
PGND
Power source : Power generator
from solar-cells
Li-ion
Battery
DET0
S0,S1,S2
DET1
COUT
MPPT_OUT
MPPT_ENA
DET0
GND
FB
GND
PGND
DET1
Power source: Power generator
from Thermoelectric Generator
System diagram
Energy Source
Power Generation
Device
PMIC
Sensing & CPU
RF
Light
Heat
Solar Cells
TEG
MB39C831
(Boost)
Sensor
MCU
Memory
ZigBee GP
Bluetooth LE
2.4GHz,
920MHz
Control & Wireless Part
Power Generation Part
Application
or
Network
of
Mobile
Tablet PC
Starter kit
· Solar Energy Harvesting·
· Thermal Energy Harvesting
Cloud
LCD
Sensor
MCU:FM3
Memory
· Cell Phone
· Electronic Dictionary
· Wireless Sensor Node
83m
m
56m
m
· eBook
MB39C831
Web design simulation service
URL: http://www.cypress.com/easy-design-sim
Cypress Semiconductor Corporation
198 Champion Court, San Jose CA 95134
phone +1 408.943.2600 fax +1 408.943.6848
toll free +1 800.858.1810 (U.S. only) Press “1” to reach your local sales representative
© 2013-2016 Cypress Semiconductor Corporation. All rights reserved. All other trademarks are the property of their respective owners.
Doc# 002- 08879 Rev*A