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This is an old revision of the document!

NinjaSCC Hardware

# Design Specifications

Desired NinjaSCC Specs to have a common frame of reference during design and documentation phase.

## Input

Symbol Parameter Min Typ Max Unit
:—————-::————————–::—-::—-::—-::—-:
VMPP PV MPP Voltage 11.5 18 36 V
VOC PV Open-Circuit Voltage 45 V
ISC PV Short-Circuit Current 15 A
PMPP PV MPP Power 250 W
- Panel/Cell Configuration 18 36 72 Cells

## Battery

Symbol Parameter Min Typ Max Unit
:—————-::————————–::—-::—-::—-::—-:
VBat Charge Voltage 5 13.4 45 V
IBat Charge Current 15 A

NinjaSCC will by default fall into a 12V system. Any other check, charge, equalize and float setpoints can easily be overriden in software to leave more headroom for all kinds of use-cases and many battery types from lead-acid, gel,agm and lithium battery packs in the 12V to 36V range.

## Load

Symbol Parameter Min Typ Max Unit
:—————-::————————–::—-::—-::—-::—-:
VLoad Output Voltage 5 45 V
ILoad Cont. Output Current 15 A

## Efficiency

Symbol Parameter Min Typ Max Unit
:——————–::————————::—-::—-::—-::—-:
BK-MPPEff Buck-Mode MPP Efficiency 98.5 %
BST-MPPEff Boost-Mode MPP Efficiency 98.5 %
TREff Transit Efficiency 99.5 %

## Environment

Symbol Parameter Min Typ Max Unit
:—————-::————————–::—-::—-::—-::—-:
Temp Operating Temperature -40 25 85 °C
OTP Overtemperature Protection +85 °C
OVP Overvoltage Protection 45 V

## PCB

Parameter Value
:——————–::——–:
Layers 2
Thickness 2 mm
Copper 70 µm
Silkscreen White
Soldermask Black
Substrate HQ P96/P26
Substrate MQ IS410
Substrate LQ FR4

## Protection

### Electrical

  • Short-Current
  • Over-Voltage
  • Over-Current
  • LVD (Low-Voltage Disconnect)
  • Undesired/Fatal Back-Channel DC GND return (High-Side Load Switch)
  • Electromagnetic and Lightning induced extraneous Voltage Transients
  • Local ESD

### Environmental

  • Battery Temperature Monitoring (optional)
  • PV Panel Temperature Monitoring (optional)
  • PCB Temperature Monitoring
  • Over-Temperature controlled Shutdown
  • Fan-Control
  • Assembly PU-Coating

First concept:

MKI early:

MKI latest:

Trace: hardware

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