Overview
Description
The ISL94216A is a 16-cell Battery Front End (BFE) IC, an essential component of any Battery Management System (BMS), which periodically scans battery status and the operating environment to optimize battery life and prevent catastrophic failures. A differential multiplexer and 16-bit ADC allows for accurate monitoring of cell voltage, temperature, and load current for management of the overall state of the battery pack.
The ISL94216A supports I2C, SPI, and Single Wire protocols allowing customers to connect an MCU in a proprietary battery management solution. Low current consumption with an average IDLE mode current of 200µA and a SHIP mode current of less than 18µA maximizes the storage and discharge life of a battery pack.
The ISL94216A features internal cell balancing circuitry that provides 8mA of balance current per cell. External cell balancing for higher currents is also supported. This 16-cell high voltage BFE IC is offered in an efficient 64 Ld QFN package with a thermal pad.
Features
- High hot plug rating: 62V
- VCELL accuracy: ±5mV
- IPACK accuracy: ±0.2%
- 16-bit VCELL and IPACK measurements
- Charge/Load wakeup detection circuitry
- 4-pin GPIO port
- Integrated 3.3V regulator
- Supports I2C, SPI, and Single Wire communications
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 2.00 MB | |
| Manual - Software | PDF 438 KB | |
| Application Note | PDF 3.66 MB | |
| Guide | PDF 615 KB | |
| Product Advisory | PDF 414 KB | |
| White Paper | PDF 263 KB 简体中文 | |
| White Paper | PDF 451 KB 简体中文 | |
| White Paper | PDF 441 KB | |
| White Paper | PDF 451 KB 简体中文 | |
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Design & Development
Boards & Kits
Evaluation
ISL94216EVKIT1Z
Active
16-Cell Battery Front End Evaluation Kit
The ISL94216EVKIT1Z evaluation kit and GUI is used to evaluate the features of the ISL94216A 16-cell battery front end (BFE) IC. A battery front end is an essential component of any battery management system (BMS), which periodically scans battery status and the operating environment to optimize...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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Support Communities
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ISL94216 cell balancing not working
I have designed my own board with isl94216. I am communicating with the ic over i2c from a master controller stm32l562 series. I am able to monitor the voltages current temperatures. But the balancing is not working at all. I have tried both automatic as well as manual. But nothing ...
Nov 9, 2022 -
ISL94202 Cell Balance
HelloI am currently working with the ISL94202 and during cell balancing I noticed that the I noticed that the CB outputs seem only 25μA can.Can this really be?Or have I read wrong?If I want to balance large LifePo4 cells, say with 1A, or more, that would be ...
May 15, 2023 -
ISL94216 minimum voltage
Hello, We are using an ISL94216A for the control of a LFP battery, exactly a 4S5P pack. The question that arises is where is the minimum voltage limit in a pack using the ISL94216. According to the datasheet, the minimum VBat voltage is 12V, however the sensor seems to work ...
May 29, 2024
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Aug 20, 2020
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