I2C

GND

V_SC

V_Bat

5V

4

3.3V

4

V_Bat

SSS

SW

3

Main bus

Solar cell

converter

ABF

RBF

Voltage and

current

sensor

Controller

Voltage converter

Features

Overview

TEchnIcAl chARAc±ERIS±IcS

Current

control

SCP

ERM8/ERF8

ABF/RBF

WDT

MPPT



Designed for CubeSat nanosatellite



Compatible with SamSat 2.0 architecture



One constant and three switchable channels

for 3.3 V and 5 V



Direct access to cell voltage



Short current protection on switchable chan-

nels



Three MMPT converters for solar cells



Start

-

stop system with trigger

Board designed to provide power to nanosatellite

systems and collecting power from solar cells. Board

designed compatible with SamSat 2.0 architecture.

For collecting power from solar cells used three

independent channels with IC, providing Maximum

Power Point Tracking (MPPT) technology. This al-

lows to collect power with maximum efficiency.

Maximum current for both 3.3 and 5 V is 3 A,

maximum current on switchable channel

-

2 A.

To protect satellite against failures used watchdog

timer which provides full satellite hard reset.

NUmbER of conS±An±

And SWI±chAblE chAnnElS

2 And 6

MAxImUm cURREn±

3

А

OU±pU± Vol±AgES

3.3 / 5 / bA±

²

CEll conVER±ER chAnnElS

3

³DT dElAy

1

-

3000

S

CEll Vol±AgE

7.4 / 14.8

²