User Manual UMAX090690. Version: 1.2 35-37
9. TECHNICAL SPECIFICATIONS
9.1.
Input Specifications
Power Supply Input
24 Vdc nominal (21…28 Vdc)
Maximum Input Current
1.7 ADC @ 20 Vdc
Engine Load Dump
Designed to meet load dump conditions (up to 120 Vdc)
Reverse Voltage
Protection
Provided
Under-voltage Shutdown
20 Vdc typical
Over-voltage Shutdown
29 Vdc typical
9.2.
Output Specifications
Nameplate Rating
(Output Power)
15 W nominal
Output Voltage and
Current
User configurable
Voltage: 12.6Vdc ± 2%
Current: 1.2 A continuous
Recommended Battery
Type
Li-ion batteries
Protection Against
Reverse Battery
Connection
Provided
Over-voltage Protection
Provided
Output Voltage Ripple
V
O(RIPPLE)
< 100 mVpp
Turn-on time
(at full load)
<100 ms typical
Stability
Stable at all loads (no minimum load requirement)
Short Circuit Current
Protection provided
Self-recovery
1.6A current limit
Thermal Protection
A connection point is provided for two external
RTD’s (not supplied)
to protect the battery.
9.3.
General Specifications
Microprocessor
STM32F405RGT7
1 MB Flash Program Memory
Control Logic
Standard embedded software
Battery charger setpoints can be viewed and configured through
the CAN bus using the Axiomatic Electronic Assistant (EA).
LED Indicator
Provided
Quiescent Current
21.01 mA @ 24 Vdc typical
42.88 mA @ 12 Vdc typical
CAN Interface
1 CAN port (SAE J1939)
Baud rate
SAE J1939, 250kbit/s, 500kbit/s, 667kbit/s, 1Mbit/s. Automatic
Baud Rate Detection
Operating Temperature
-40 to 70 °C (-40 to 158 °F)
