BMS1102s
Monitor UnitContact us for pricing and availability.
Summary
The BMS1102S Battery Management System Monitor Unit is designed to be used within an array of other BMS1102S 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.
The BMS1102S Battery Management System Monitor Unit measures the voltages of 6 – 12 series connected battery cells, and can apply a 22Ω shunt resistor across each battery cell to bleed off excess charge (passive balancing). The BMS1102S also measures the resistance of up to 12 thermistors to determine cell temperatures.
Features
12 Cell Battery Monitor with Passive Balancing
Switchable 22Ω Shunt Resistor for Each Cell
4 Thermistor Input Channels
12/24V Nominal Compatible Power Input
CAN 2.0B Communication Port
DIP Switch for Setting Stack Address
DIP Switch to Enable CAN Termination Resistor
1000V Isolation Between Accessory and Cell Voltage Domains
Convenient Narrow Form Factor
Specifications
Typical System Diagram
| 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 |