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
Description
The ISL94216 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 ISL94216 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 ISL94216 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.
Parameters
| Attributes | Value |
|---|---|
| Cells Supported (#) | 4 - 16 |
| Pack Voltage (Op) | 12 - 55 |
| Cell Balancing FETs | Both |
| Integrated Current Sense/Detection | Low Side |
| Charge/Discharge FET Control | Yes |
| Charge/Discharge FET Arrangement | Both |
| Charge/Discharge FET Location | Both |
| IS (mA) | 0.2 |
| Sleep/Reset Mode Current (µA) | 10 |
| Stand Alone Capable | No |
| Internal ADC (bits) | 16 |
| Daisy Chain | No |
| GPI+GPIOs (#) | 6 |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +85°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| QFN | 9.0 x 9.0 x 0.85 | 64 | 0.5 |
Applications
- Light electric vehicles such as e-bikes, e-scooters, and e-motorcycles
- Cordless power and gardening tools
- Home appliances
- 24V, 36V, 42V, and 48V portable battery packs
- Telecom and server farms
- Solar farms
- Energy storage systems
Filters
Partner Solutions
Model-Based Development PlatformOffers electrochemical battery models designed to run on Renesas battery management solution platforms, enabling more accurate state estimation and improved overall battery performance.Provided By: BattGenie
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- Model-Based Development PlatformOffers electrochemical battery models designed to run on Renesas battery management solution platforms, enabling more accurate state estimation and improved overall battery performance.Provided By: BattGenie
Partner Solutions (1)
Support Communities
-
ISL94216 Balancing conditions
Hello everyone, We are working with the ISL94216 and we are having some problems in balancing our cells. Both in manual or automatic balancing. We are able to balance when the batteries are charging, but it stops balancing if there is no charging current. We were wondering if there is ...
Apr 25, 2023 -
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 -
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
Support Communities
