Multicell Battery Protection

Multicell rechargeable batteries perform better when each cell receives protection from voltage surges and overcurrent events. This block diagram indicates which Littelfuse components offer solutions. In addition to TVS diode arrays and resettable PPTC devices, we offer NTC thermistors and reflowable thermal protectors/battery mini breakers to prevent thermal damage.

Block Diagram

Technology:
Product Series:zeptoSMDC
Features:Maximum electrical rating: 13 VDC; short circuit current: 82~200 mA; small footprint 0201 size
Benefits:Resets to normal operation after fault is cleared; smaller footprint saves space

Technology:
Product Series:SP1006
Features:DFN-2 (0201) footprint 30 kV ESD withstand voltage
Benefits:Small space saving design; low capacitance to prevent signal disruption

Technology:
Product Series:RA
Features:Surface mountable; small form-factor
Benefits:Provides safe operation of battery; smaller footprint saves space

Technology:
Product Series:MHP-TAC
Features:I hold up to 15 A, milliohm resistance, 72 to 90 C cutoff temperature
Benefits:Longer battery life; sensitive thermal protection