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SC5550CADD

High-Accuracy Protector for 2-5 Cells Li-ION/Polymer Battery

SC5550CADDSC5550CADD

SC5550CADD

The SC5550 is a high-accuracy protection IC for 2-5 cells rechargeable battery application. It integrates complete battery protection functions including battery over voltage protection, battery under voltage protection, 3-levels discharge over current protection, charge over current protection, battery over and under temperature protection under both charging and charging condition, chip thermal shutdown protection etc. Besides, the voltage protection delay time is flexible to set by external resistor. SC5550 provides secondary battery over voltage protection and indication function. This can be cooperated with fuse, to enhance battery safety. In addition, SC5550 also integrates CTRC/CTRD control pin to support stacked application, up to 6-10 cells application. The SC5550 consumes low supply current under normal working status and automatically enters into sleep mode when battery voltage is lower than under voltage protection threshold, which ensures cells’ storing time longer. SC5550 is available in TSSOP-20 footprint.
SC5550CADD
The SC5550 is a high-accuracy protection IC for 2-5 cells rechargeable battery application. It integrates complete battery protection functions including battery over voltage protection, battery under voltage protection, 3-levels discharge over current protection, charge over current protection, battery over and under temperature protection under both charging and charging condition, chip thermal shutdown protection etc. Besides, the voltage protection delay time is flexible to set by external resistor. SC5550 provides secondary battery over voltage protection and indication function. This can be cooperated with fuse, to enhance battery safety. In addition, SC5550 also integrates CTRC/CTRD control pin to support stacked application, up to 6-10 cells application. The SC5550 consumes low supply current under normal working status and automatically enters into sleep mode when battery voltage is lower than under voltage protection threshold, which ensures cells’ storing time longer. SC5550 is available in TSSOP-20 footprint.
Product Details
Design / Development
Technical Documentation
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Product Details

Technical Documentation

Parameter NameParameter Value
VOCV(V)4.425
VOCV hys. (mV)200
VODV (V)2.5
VODV hys. (mV)400
VDOC1 (mV)50
VDOC2 (mV)2*VDOC1
VSC (mV)4*VDOC1
VCOC (mV)-15
tDOC1 (ms)24
Parameter NameParameter Value
tDOC2 (ms)1.024
tCOC (ms)10
tSC (us)512
TCOT/TCUT/TDOT/TDUT(°C)50°C/-5°C/70°C/-15°C
0V Battery Charging√
Cell balancing×
VBAL(V)/
PackageTSSOP-20
Parameter NameParameter Value
VOCV(V)4.425
VOCV hys. (mV)200
VODV (V)2.5
VODV hys. (mV)400
VDOC1 (mV)50
VDOC2 (mV)2*VDOC1
VSC (mV)4*VDOC1
VCOC (mV)-15
tDOC1 (ms)24
tDOC2 (ms)1.024
tCOC (ms)10
tSC (us)512
TCOT/TCUT/TDOT/TDUT(°C)50°C/-5°C/70°C/-15°C
0V Battery Charging√
Cell balancing×
VBAL(V)/
PackageTSSOP-20