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Lithiumate™ Manual

index reference description_specs electrical_specs hd_elec_specs

Lithiumate HD master electrical specs

Electrical Specifications for the 2CN0002E Li-Ion BMS master.

back to topAbsolute maximum ratings

Operation beyond these values will damage the unit

All voltages with respect to pin 1, unless otherwise noted.
Symbol Item Pins Conditions  Min    Max Units
VSUPPLY-IN-max Power connector, VL or VS supply voltage input Power conn., Vload or Vsource   -0.3   30 Vdc
ISUPPLY-IN-max Supply input current Power connector, VL or VS supply voltage input Continuous 0.1   -3.0 A
Peak, inrush -10.0
IV+-max V+ line output current Power connector, V+ lines Total for all outputs, Continuous 0   3.0 A
Total for all outputs, Peak, inrush 6
VOPEN-DRAIN-max Open Drain output voltage Power conn., HLIM, LLIM, FLT, FAN, K1, K2, K3 Off     40 V
IOPEN-DRAIN-max Open Drain output current Power conn., HLIM, LLIM, FLT, FAN, K1, K2, K3 Continuous 0.1   -2 A
Peak, inrush -4.3
VCONT-REQ-IN-max Contactor request input voltage Control conn., CONTREQ   -0.3   30 V
VCAN-max CAN bus voltage Control conn. CANH, CANL Between CANL or CANH and CGND -0.3 10 V
Between CANL or CANH and GND -100 100
I5V-max 5 V line output current Control conn., +5V out   -1   50 mA
IDA-max Max D/A converter output current Control conn., SOC, CCL, DCL   -10   10 mA
TAMB Ambient temperature   Operating -40   +80 °C
ESD ElectroStatic Discharge immunity   CAN, Unpowered, EIA/JESD22-A115-A waveform with MIL-STD-883, method 3015     6 kV
All other pins, unpowered, EC/EN/KN 61000-4-2 4
 

back to topRecommended operating conditions

All voltages with respect to pin 1, unless otherwise noted.
Symbol Item Pins Conditions Min Nom Max Units
VSUPPLY-IN VL or VS supply voltage input Power conn., VS or VL   7 12 16 Vdc
ISUPPLY-IN Supply input current Power conn., VS or VL Continuous -0.15 -0.2 -2 A
VOPEN-DRAIN Open Drain output voltage Power conn., HLIM, LLIM, FLT, FAN, K1, K2, K3 Off   30   V
IOPEN-DRAIN Open Drain output current Power conn., HLIM, LLIM, FLT, FAN, K1, K2, K3 VOPEN-DRAIN < 0.1 V     -1.0 A
VCONT-REQ-IN-max Contactor request input voltage Control conn., CONTREQ   5 12 24 Vdc
I5V 5 V line output current Control conn., +5V out   0   30 mA
IDA Max D/A converter output current Control conn., SOC, CCL, DCL     0   mA
 

back to topDC Specifications

Unless otherwise noted: 25 °C; 12 Vdc in
Symbol Item Conditions Min Nom Max Units
ISUPL Supply current No ext loads, 12 Vdc in   150 180 mA
VCONT Open Drain output voltage IOpen-Drain = 1.0 A     0.1 V
V+ Supply voltage out Vin = 12 V   11.3   V
VFAN-PWM Fan PWM output voltage Rload > 10 kΩ TTL (0 & 5) V
VDIG-LIM-LO FLT, HLIM< LLIM outputs voltage low 10 mA sink     0.1 V
VANALOG Analog output voltage (SOC, CCL, DCL)   0.0   5.0 V
RANALOG Analog output resistance (SOC, CCL, DCL)     100   Ω
V5V 5 V supply voltage -10 mA < I < 10 mA 4.9 5.0 5.1 V
VCTRL-IN-LO Control input low voltage threshold       0.8 V
VCTRL-IN-HI Control input high voltage threshold   2.0     V
IHV-CURR-OFFBD Current sensor input voltage range (1) 0.0 2.5 5.0 V
IHV-CURR_RES Current sensor input resolution     0.2   %
RCAN_TERM CAN termination resistor (2)   120   Ω

Notes:
1: Max discharge, 0 current, max charge, respectively
2: May be disconnected if not at the end of CAN bus.
 

back to topAC Specifications

Unless otherwise noted: 25 °C; 12 Vdc in
Symbol Item Conditions Min Nom Max Units
FCAN CAN speed     125, 250, 500 or 1000   kbs
FUSB USB baud rate     57.6 k   bps
DCfan-PWM Fan PWM period No fan to full fan 0   100 %
Ffan-PWM Fan PWM frequency     10   kHz
Tcurr Current measurement rate     10   ms
Tpwr-up Power up time From 12 V present to 1st CAN mesage 13 ms

back to topReporting Time Specifications

Time between when a set of measurements is taken, and when the readings are available to the Master and for external viewing.

This time depends on the maximum number of cell-boards in a bank, and on the reading rate.

Cell voltages are measured and reported each reading cycle; temperatures, every N cycles, where N is the maximum number of cell-boards in a bank.
Max number of
cells in a bank
1 reading / s 2 reading / s
Voltage Temperature Voltage Temperature
2 0.27 s 2 s 0.27 s 1 s
3 0.30 s 3 s 0.30 s 1.5 s
4 0.33 s 4 s 0.33 s 2 s
5 0.37 s 5 s 0.37 s 2.5 s
6 0.40 s 6 s 0.40 s 3 s
7 0.43 s 7 s 0.43 s 3.5 s
8 0.47 s 8 s 0.47 s 4 s
9 0.50 s 9 s 0.50 s 4.5 s
10 0.53 s 10 s n.a.
11 0.57 s 11 s n.a.
12 0.60 s 12 s n.a.
13 0.63 s 13 s n.a.
14 0.67 s 14 s n.a.
15 0.70 s 15 s n.a.
16 0.73 s 16 s n.a.

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