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Lithiumate™ Manual

index reference description_specs electrical_specs controller_elec_specs

BMS controllers electrical specs

Electrical Specifications for the 2CN0000B, 2CN0000E and 2CN0xxxH Standard Li-Ion BMS controllers.

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 VL or VS supply voltage input Control conn., pin 3 or pin 4   -0.3   30 Vdc
ISUPPLY-IN-max Supply input current Control conn., pin 3 or pin 4 Continuous 0.1   -3.5 A
Peak, inrush -10.0
IV+-max V+ line output current Control conn., pin 2
Coil conn. pin 1
Fan conn. pin 5
Total for all outputs, Continuous 0   3.35 A
Total for all outputs, Peak, inrush 9.85
VOPEN-DRAIN-max Open Drain output voltage Control conn., pins 10, 11, 12
Fan conn., pin 3
Coils conn., pins 2, 3, 4
Off, rev A~D     VSUPPLY-IN V
Off, rev E~F 30
IOPEN-DRAIN-max Open Drain output current Control conn., pins 10, 11, 12
Fan conn., pin 3
Coils conn., pins 2, 3, 4
coils, fan, HLIM, LLIM, FLT
Continuous 0.1   -1.5 A
Peak, inrush -5.0
IV+ V+ line output current Control conn., pin 2
Coil conn. pin 1
Fan conn. pin 5
Total for all outputs, Continuous 0   2 A
Total for all outputs, Peak, inrush 4
VCONT-REQ-IN-max Contactor request input voltage Control conn., pin 5   -0.3   30 V
VCAN-max CAN bus voltage Control conn. pins 8, 16   -0.3   10 V
I5V-max 5 V line output current Control conn., pin 7   -10   100 mA
IDA-max Max D/A converter output current Control conn., pins 13, 14, 15
SOC, CCL, DCL
  -10   10 mA
I+/-15 Max +/- 15 V supply output current Ext Curr snsr conn., pin 1   0   33 mA
Ext Curr snsr conn., pin 2 0 -33
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 Control conn., pin 3 or pin 4   7 12 16* Vdc
ISUPPLY-IN Supply input current Control conn., pin 3 or pin 4 Continuous -0.15 -0.2 -2 A
VOPEN-DRAIN Open Drain output voltage Control conn., pins 10, 11, 12
Fan conn., pin 3
Coils conn., pins 2, 3, 4
coils, fan, HLIM, LLIM, FLT
Off   VSUPPLY-In   V
IOPEN-DRAIN Open Drain output current Control conn., pins 10, 11, 12
Fan conn., pin 3
Coils conn., pins 2, 3, 4
coils, fan, HLIM, LLIM, FLT
VOPEN-DRAIN < 0.1 V     -1.0 A
VCONT-REQ-IN-max Contactor request input voltage Control conn., pin 5   5 12 24 Vdc
I5V 5 V line output current Control conn., pin 7   0   30 mA
IDA Max D/A converter output current Control conn., pins 13, 14, 15
SOC, CCL, DCL
    0   mA
I+/-15 Max +/- 15 V supply output current Ext Curr snsr conn., pin 1   0   30 mA
Ext Curr snsr conn., pin 2 0 -30
 

The internal power supply shuts down with supply voltages above 16 V, but is not damaged up to 30 V.

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 Contactor output voltage ICONT = 1.0 A     0.1 V
VSUPPL Supply voltage out (contactor, fan, utility) Vin = 12 V   11.3   V
VFAN Fan output voltage IFAN = 1.0 A     0.1 V
VFAN-PWM Fan PWM output voltage Rload > 10 kΩ TTL (0 & 5) V
VDIG-LIM-LO Limit 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 4.975 5.000 5.025 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 or 500   kbs
FRS232 RS232 baud rate     19.2 k (rev 1.xx), 57.6 k (rev 2.xx)   bps
DCfan-PWM Fan PWM period No fan to full fan 0   100 %
Ffan-PWM Fan PWM frequency     10   kHz
Tcurr Current rate     10   ms
Tpwr-off Power supply turn-off time 12 V down to 5 V 10 ms
Tpwr-up Power up time From 12 V present to 1st CAN mesage 13 ms
Ti-lock Interlock fault time From interlock actuated to fault state
Rev 1.10 and up
120 ms

If the power takes longer than Tpwr-off to go away, the SOC is not stored in EEPROM.

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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