Datasheet ISL94202 Standalone 3 to 8 Cell Li-Ion Battery Pack Monitor The ISL94202 is a battery pack monitor IC that Features supports from three to eight series connected cells. It Eight cell voltage monitors support Li-ion CoO , 2 provides complete battery monitoring and pack Li-ion Mn O , Li-ion FePO , and other chemistries 2 4 4 control. The ISL94202 provides automatic shutdown Stand-alone pack control - no MCU needed and recovery from out-of-bounds conditions and automatically controls pack cell balancing. Multiple voltage protection options (each programmable to 4.8V 12-bit digital value) and The ISL94202 is highly configurable as a stand-alone selectable overcurrent protection levels unit, but can be used with an optional external Microcontroller (MCU), which communicates to the Programmable detection/recovery times for 2 ISL94202 through an I C interface. overvoltage, undervoltage, overcurrent, and short-circuit conditions The ISL94202 supersedes the ISL94203 for all future designs, as the ISL94202 operates in both parallel Configuration/calibration registers maintained in and series power FET configurations. EEPROM Open Wire battery connection detection Applications Integrated charge/discharge FET drive circuitry with Power tools built-in charge pump supports high-side N-channel Battery back-up systems FETs Light electric vehicles Cell balancing uses external FETs with internal state machine or an optional external MCU Portable equipment Enters low power states after periods of inactivity Energy storage systems Charge or discharge current detection resumes Solar farms normal scan rates Medical equipment Related Literature Hospital beds Monitoring equipment For a full list of related documents, visit our website: Ventilators ISL94202 device page P+ 43V 43V VBATT VC8 PSD CB8 VC7 FETSOFF CB7 INT VC6 RGO CHRG CB6 VC5 ISL94202 CB5 VC4 SD CB4 EOC VC3 SCL CB3 SDA VC2 TEMPO CB2 xT1 VC1 xT2 CB1 VC0 VREF VSS ADDR P- GND Figure 1. Typical Application Diagram FN8889 Rev.3.00 Page 1 of 153 Oct.14.19 CS1 CS2 CFET PCFET VDD DFET C1 C2 C3 LDMON CHMONISL94202 Contents 1. Overview . 8 1.1 Block Diagram 8 1.2 Ordering Information . 9 1.3 Pin Configuration . 10 1.4 Pin Descriptions 10 2. Specifications 12 2.1 Absolute Maximum Ratings . 12 2.2 Thermal Information . 13 2.3 Recommended Operating Conditions . 13 2.4 Electrical Specifications 13 2.5 Symbol Table 20 3. Typical Performance Curves 21 4. System Registers . 32 4.1 0x00-0x4B Configuration Registers . 32 4.1.1 0x00-01 CDPW & V OV 35 CELL 4.1.1.1 V OV 35 CELL 4.1.1.2 0x01.7:4 CDPW . 36 4.1.2 0x02-03 V OVR 36 CELL 4.1.3 0x04-05 LDPW & V UV 37 CELL 4.1.3.1 V UV 37 CELL 4.1.3.2 0x05.7:4 LDPW . 37 4.1.4 0x06-07 V UVR . 38 CELL 4.1.5 0x08-09 V OVLO . 38 CELL 4.1.6 0x0A-0B V UVLO . 39 CELL 4.1.7 0x0C-0D V EOC 40 CELL 4.1.8 0x0E-0F V LVCL 40 CELL 4.1.9 0x10-11 V OV Timer . 41 CELL 4.1.9.1 V OVDTU 41 CELL 4.1.9.2 V OVDT 42 CELL 4.1.10 0x12-13 V UV Timer . 42 CELL 4.1.10.1 V UVDTU . 42 CELL 4.1.10.2 V UVDT 42 CELL 4.1.11 0x14-15 OWT . 43 4.1.11.1 OWTU . 43 4.1.11.2 OWT 43 4.1.12 0x16-17 DOC & DOCT 43 4.1.12.1 0x17. 6:4 DOC 44 4.1.12.2 0x17. 3:2 DOCTU . 44 4.1.12.3 0x16-17 DOCT 44 4.1.12.4 DOCR . 45 4.1.13 0x18-19 COC & COCT 46 4.1.13.1 0x19. 6:4 COC 46 4.1.13.2 0x19. 3:2 COCTU . 46 4.1.13.3 0x18-19 COCT 47 4.1.13.4 COCR . 47 4.1.14 0x1A-1B DSC & DSCT 48 4.1.14.1 0x1B. 6:4 DSC 48 4.1.14.2 0x1B. 3:2 DSCTU . 48 FN8889 Rev.3.00 Page 2 of 153 Oct.14.19