microGen LTC3330 - Page 8

8
How it Works
The AC signal from the AC Power Cell is routed directly to the Linear Technology LTC3330 AC/DC
converter component. The LTC3330 is highly configurable, allowing the user to adjust the output
voltage as well as the voltage range where the device is allowed to harvest energy. The user has
the option to use the onboard capacitance for power storage, or bypass the storage capacitors if
all of the harvested energy is to be transferred off the PCB. This provides the user with a stable
DC power source.
LTC3330 Power Management Board Components
Two 3-pin receptacles are used to connect to the LTC 3330 Power Management Board to the AC
Power Cell. The resulting DC output voltage can be accessed via connector P7 or P8. Additional
headers are provided for connecting to other accessory boards and/or for powering a device with
energy harvesting.
Connector
Pin
Number(s)
Connection
Type
IO
Type
Description
P1
1, 2, 3
Header
N/A
Physical Support Only
P7
1
Header
Output
VDC Out
2
Header
Output
Ground
3
Header
N/A
Not Used
P2
1
Receptacle
Input
AC1 Input
2
Receptacle
Input
Ground
3
Receptacle
Input
AC2 Input
P9
1, 2, 3
Receptacle
N/A
Physical Support Only
P8
1
PicoBlade
Header
Output
VDC Out
2
PicoBlade
Header
Output
Ground
VOUT0
1, 2, 3
Header
Input
Output Voltage Configuration Bit
VOUT1
1, 2, 3
Header
Input
Output Voltage Configuration Bit
VOUT2
1, 2, 3
Header
Input
Output Voltage Configuration Bit
UVLO0
1, 2, 3
Header
Input
Harvesting Voltage Configuration Bit
UVLO1
1, 2, 3
Header
Input
Harvesting Voltage Configuration Bit
UVLO2
1, 2, 3
Header
Input
Harvesting Voltage Configuration Bit
UVLO3
1, 2, 3
Header
Input
Harvesting Voltage Configuration Bit
Bypass/Caps
1-6
Header
Switch
Toggle in/out Onboard Capacitors
Table 3: Board Pinout