ISL9216, ISL9217 Data Sheet November 2, 2007 FN6488.1 8 to 12 Cell Li-Ion Battery Overcurrent Features Protection and Analog Front End Chip Set Software selectable overcurrent protection levels and The ISL9216 and ISL9217 chipset provides overcurrent variable protect detection/release times protection and voltage monitoring for multi-cell li-ion battery - 4 Discharge overcurrent thresholds packs consisting of 8 to 12 cells. When used together, these - 4 Short circuit thresholds devices provide integrated overcurrent protection circuitry, - 4 Charge overcurrent thresholds short circuit protection, an internal voltage regulator, internal - 8 Overcurrent delay times (Charge) cell balancing switches, cell voltage level shifters, and drive - 8 Overcurrent delay times (Discharge) circuitry for external FET devices that control pack charge - 2 Short circuit delay times (Discharge) and discharge. Level shifting of the analog output voltage Automatic FET turn-off and cell balance disable on from the upper cells and communication between the chips reaching external (battery) or internal (IC) temperature is handled automatically. limit Overcurrent and short circuit thresholds reside in internal Automatic over-ride of cell balance on reaching internal RAM registers and are selected independently via software (IC) temperature limit 2 using an I C serial interface. Detection and time-out delays can be individually varied using internal registers. Fast short circuit pack shutdown Using an internal analog multiplexer, the device provides , or Sense Can use current sense resistor, FET r DS(ON) monitoring of cell voltage by a separate microcontroller with FET for overcurrent detection A/D converter. Software on this microcontroller implements Four battery backed software controlled flags all battery control functionality, except for overcurrent and short circuit shutdown. Allows three different FET controls: - Back-to-back N-Channel FETs for charge and discharge Applications control - Single N-Channel FET for discharge control Power Tools - N-Channel FET for discharge, with separate, optional Battery Backup Systems (smaller) back-to-back FET for charge E-bikes Chips cascade for packs of 8 to 12 cells Portable Test Equipment Integrated charge/discharge FET drive circuitry with Medical Systems 200A (typ) turn on current and 150mA (typ) discharge FET turn off current Hybrid Vehicle 10% accurate 3.3V voltage regulator (35mA out with Military Electronics external NPN transistor having current gain of 70) Cell voltage monitor accurate to within 25mV Ordering Information Monitored cell voltage output stable in 100s PART NUMBER PART PACKAGE PKG. (Note) MARKING (Pb-Free) DWG. Internal cell balancing FETs handle up to 200mA of ISL9216IRZ* ISL9216 IRZ 32 Ld 5x5 QFN L32.5x5B balancing current for each cell (with the number of cells being balanced limited by the maximum power dissipation ISL9217IRZ* 921 7IRZ 24 Ld 4x4 QFN L24.4x4D of 400mW) *Add -T suffix for tape and reel. Please refer to TB347 for details 2 C host interface Simple I on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ Sleep operation with programmable negative edge or special Pb-free material sets molding compounds/die attach positive edge wake-up materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and <10A sleep mode Pb-free soldering operations. Intersil Pb-free products are MSL Pb-free (RoHS compliant) classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners.ISL9216, ISL9217 Pinouts ISL9217 (UPPER) ISL9216 (LOWER) (24 LD 4X4 QFN) (32 LD 5X5 QFN) TOP VIEW TOP VIEW 24 23 22 21 20 19 32 31 30 29 28 27 26 25 CB7 RGO 1 18 HVI2C 1 24 TEMPI VCELL6 2 17 SDAI 2 23 VC7/VCC AO CB6 AO 3 16 3 22 VMON SDAIHV VCELL5 15 NC 4 4 21 CFET VCELL6 VSS CB5 5 14 5 20 DFET WKUPR VCELL4 CB1 6 13 6 19 CSENSE VCELL5 789 10 11 12 7 18 DSENSE CB5 8 17 DSREF VCELL4 9 1011 12 13 1415 16 FN6488.1 2 November 2, 2007 CB4 VC7/VCC VCELL3 NC CB3 SCL VCELL2 SDAO CB2 WKUP VCELL1 RGC CB4 SDAOHV VCELL3 SCLHV CB3 SCL VCELL2 SDA CB2 WKUP VCELL1 RGC CB1 RGO VSS TEMP3V