Datasheet ISL94216 16-Cell Battery Front End The ISL94216 is a 16-cell Battery Front End (BFE) IC, Features an essential component of any Battery Management • High hot plug rating: 62V System (BMS), which periodically scans battery status and the operating environment to optimize •VCELL accuracy: ±5mV battery life and prevent catastrophic failures. •IPACK accuracy: ±0.2% A differential multiplexer and 16-bit ADC allows for • 16-bit VCELL and IPACK measurements accurate monitoring of cell voltage, temperature, and • Charge/Load wakeup detection circuitry load current for management of the overall state of the battery pack. • 4-pin GPIO port The ISL94216 supports I2C, SPI, and Single Wire • Integrated 3.3V regulator protocols allowing customers to connect an MCU in a • Supports I2C, SPI, and Single Wire communications proprietary battery management solution. Low current consumption with an average IDLE mode Applications current of 200µA and a SHIP mode current of less • Light electric vehicles such as e-bikes, e-scooters, than 18µA maximizes the storage and discharge life and e-motorcycles of a battery pack. • Cordless power and gardening tools The ISL94216 features internal cell balancing circuitry • Home appliances that provides 8mA of balance current per cell. External cell balancing for higher currents is also • 24V, 36V, 42V, and 48V portable battery packs supported. • Telecom and server farms This 16-cell high voltage BFE IC is offered in an •Solar farms efficient 64 Ld QFN package with a thermal pad. • Energy storage systems FN8936 Rev.3.00 Page 1 of 139 Sep 1, 2021 © 2020 Renesas Electronics ISL94216 Contents 1. Overview . 4 1.1 Typical Application . 4 1.2 Block Diagram . 5 1.3 Ordering Information . 6 1.4 Pin Configurations . 7 1.5 Pin Descriptions . 7 2. Specifications . 10 2.1 Absolute Maximum Ratings . 10 2.2 Thermal Information . .11 2.3 Recommended Operation Conditions . .11 2.4 Electrical Specifications . 12 3. Typical Performance Curves . 21 4. System Registers . 34 4.1 IC Device Details . 37 4.2 Global IC Controls . 37 4.3 VCELL and IPACK Measurement . 39 4.4 VCELL Fault Detectors . 44 4.5 IPACK Fault Detectors . 47 4.6 ETAUX Port . 54 4.7 0x12 ALRT and GPIO . 55 4.8 ETAUX Detectors . 57 4.9 Internal Temperature . 59 4.10 Regulator Measurements and Detectors . 60 4.11 VBAT1 . 64 4.12 Power FET Block . 68 4.13 Cell Balancing Registers . 71 4.14 System Faults and Status . 77 5. Pin Functionality . 88 5.1 VCn Pins . 88 5.2 CBn Pins . 88 5.3 CSP and CSN Pins (24, 25) . 89 5.4 VSS Pin (26) . 90 5.5 AUX0/xT0, VTEMP, AUX1/xT1 Pins (27, 29, 28) . 90 5.6 Regulator and Supply Pins (30-33) . 91 5.7 CMS0 and CMS1 Pins (34, 35) . 92 5.8 DGND Pin (36) . 92 5.9 V2P5 Pin (37) . 92 5.10 RESET Pin (38) . 92 5.11 WAKEUP Pin (39) . 93 5.12 ALRT Pin (40) . 93 5.13 ADDR/CS Pin (41) . 93 5.14 SCL Pin (42) . 93 5.15 MOSI Pin (43) . 93 5.16 MISO/SDA/SINGLE-WIRE Pin (44) . 93 5.17 GPIO(0-3) Pin (45-48) . 94 FN8936 Rev.3.00 Page 2 of 139 Sep 1, 2021 ISL94216 5.18 LDMON Pin (49) . 94 5.19 CFET and DFET Pins (50, 51) . 95 5.20 VCPMP Pin (52) . 97 5.21 VBAT2 Pin (53) . 97 5.22 VBAT1 Pin (54) . ..