Overview
Description
The ISL94202 is a battery pack monitor IC that supports from three to eight series connected cells. It provides complete battery monitoring and pack control. The ISL94202 provides automatic shutdown and recovery from out-of-bounds conditions and automatically controls pack cell balancing. The ISL94202 is highly configurable as a stand-alone unit, but can be used with an optional external Microcontroller (MCU), which communicates to the ISL94202 through an I2C interface. The ISL94202 supersedes the ISL94203 for all future designs, as the ISL94202 operates in both parallel and series power FET configurations.
Features
- Eight cell voltage monitors support Li-ion CoO2, Li-ion Mn2O4, Li-ion FePO4, and other chemistries
- Stand-alone pack control - no MCU needed
- Multiple voltage protection options (each programmable to 4.8V; 12-bit digital value) and selectable overcurrent protection levels
- Programmable detection/recovery times for overvoltage, undervoltage, overcurrent, and short-circuit conditions
- Configuration/calibration registers maintained in EEPROM
- Open Wire battery connection detection
- Integrated charge/discharge FET drive circuitry with built-in charge pump supports high-side N-channel FETs
- Cell balancing uses external FETs with internal state machine or an optional external MCU
- Enters low power states after periods of inactivity
- Charge or discharge current detection resumes normal scan rates
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 1.86 MB | |
| Application Note | PDF 245 KB | |
| Guide | PDF 615 KB | |
| Application Note | PDF 609 KB | |
| Brochure | PDF 1.11 MB | |
| White Paper | PDF 451 KB 简体中文 | |
| White Paper | PDF 451 KB 简体中文 | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
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Design & Development
Boards & Kits
Evaluation
ISL94202EVKIT1Z
Active
Series Charge/Discharge Path 3-to-8 Cell Li-ion Battery Pack Monitor Evaluation Kit
The ISL94202EVKIT1Z is an evaluation kit that facilitates testing of the ISL94202 Li-ion battery pack monitor and control IC. The evaluation kit contains:
- ISL94202EVAL1Z evaluation board
- MCB_PS_Z multi-cell power supply test board
- ISL94202INTFACEKIT1Z USB to I2C interface kit includes...
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Demonstration
VACUUM-CLEANER-REF
Active
Vacuum Cleaner Reference Design
This Handy Vacuum Cleaner reference design enables switching between two operation levels of suction power: high or low. The sensorless 3-phase BLDC motor is rotated at high speed to provide the appropriate strength of suction for each level. The battery-driven, cordless operation makes...
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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