SC451XX

Silan Semiconductors LI-ION BATTERY PROTECTOR DESCRIPTION The SC451XX series are protection ICs for over-charge /discharge of rechargeable one-cell Lithium-ion (Li+) batteries by CMOS process. The SC451XX series can detect over-charge/discharge of Li+ one-cell and excess load current, further include a short circuit protector for preventing large external short circuit current. SC451XX SOT-26 FEATURES * Low supply current. * High withstand voltage. * High accuracy detector threshold. * Variety of detector threshold. * Built-in protection circuit. * Output delay of over-charge. * Ultra small package: SOT-26 APPLICATIONS * Over-charge/over-discharge protection for Li+ one-cell pack * High precision protectors for cell-phones and any other gadgets using on board Li+ one-cell battery. PIN ASSIGNMENT BLOCK DIAGRAM 5 VDD 2 Ct 6 5 4 VD1 Level shift SC451XX delay VD2 1 2 3 short circuit detector VD3 3 VSS DOUT 4 1 COUT 6 V- HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.0 2000.12.31 1 Silan Semiconductors ABSOLUTE MAXIMUM RATING Characteristic Supply Voltage Input Voltage Output Voltage Power Dissipation Storage Temperature Operating Temperature SC451XX Symbol VDD VVCT VCOUT VDOUT PD TSTG TOPR Value 0.3 ~ 12 VDD-18~VDD+0.3 Vss-0.3 ~ VDD+0.3 VDD-18~VDD+0.3 Vss-0.3 ~ VDD+0.3 150 -55 ~ +125 -40 ~ + 85 Unit V V V V V mW °C °C ELECTRICAL CHARACTERISTICS (Tamb=25°C, unless otherwise specified) Sc451XX-01 Parameter Operating Voltage Min Operating Voltage fo...