Overview
Description
The ISL94203 is a Li-ion battery monitor IC that supports from 3 to 8 series connected cells. It provides full battery monitoring and pack control. The ISL94203 provides automatic shutdown and recovery from out of bounds conditions and automatically controls pack cell balancing. The ISL94203 is highly configurable as a stand-alone unit, but can be used with an external microcontroller, which communicates to the IC through an I2C interface.
Features
- Eight cell voltage monitors support Li-ion CoO2, Li-ion Mn2O4 and Li-ion FePO4 chemistries
- Stand-alone pack control - no microcontroller 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 battery connect 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 external microcontroller
- Enters low power states after periods of inactivity. Charge or discharge current detection resumes normal scan rates
Comparison
Applications
- Power tools
- Battery back-up systems
- E-bikes
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 2.92 MB | |
| Brochure | PDF 5.41 MB 日本語 | |
| White Paper | PDF 451 KB 简体中文 | |
| White Paper | PDF 451 KB 简体中文 | |
| Product Change Notice | PDF 94 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
7 items
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| TQFN | Tube | 6.081 | ||
| TQFN | Reel | |||
| TQFN | Reel | 6.081 | ||
| TQFN | Reel | 5.912 |
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