BMS1101S
Battery Management System Monitor Unit
Summary
The BMS1101S Monitor Unit is designed to be used within an array of other BMS1101S Monitors and a Master BMS Controller (e.g. BMS1000M) to form a high accuracy Battery Management System. Data and commands are transmitted and received via CAN 2.0B interface which connects these units. Get accurate State of Health, State of Charge and Safe Operating Envelope data for your battery pack.
The BMS1101S Monitor Unit measures the voltages of 6 – 12 series connected battery cells, and can apply a 22 Ω shunt resistor across each battery cell to bleed off excess charge (passive balancing). The BMS1101S also measures the resistance of up to 12 thermistors to determine cell temperatures.
DOWNLOADS: BMS Product Family Brochure (PDF)
FEATURES
DIP Switch for Setting Stack Address
DIP Switch to Enable CAN Termination Resistor
1000 V Isolation Between Accessory and Cell Voltage Domains
Convenient Narrow Form Factor
12 Cell Battery Monitor with Passive Balancing
Switchable 22 Ω Shunt Resistor for Each Cell
12 Thermistor Input Channels
12/24 V Nominal Compatible Power Input
CAN 2.0B Communication Port
Specifications
| Parameter | Conditions | Min | Typical | Max | Units |
|---|---|---|---|---|---|
| Input Power | |||||
| System 12V/24V Input Voltage | 7 | 12 / 24 | 32 | V | |
| System 12V/24V Input Current | Active Mode | 10 | 15 | 25 | mA |
| Battery Monitoring | |||||
| Cell Voltage | 0 | 4.75 | V | ||
| 12 Cell Stack Voltage | 14 | 57 | V | ||
| Quiescent Battery Current | Input Power Off | 3.6 | 10 | μA | |
| Cell Voltage Measurement Error | 1.4 | mV | |||
| General System | |||||
| Accessory - Battery Domain Isolation Voltage | 1000 | V | |||
| Operating Temperature | -35 | 80 | °C |