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SC5650AIAA

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

Introduce
Function
Application
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The SC5650 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. SC5650 provides secondary battery over voltage protection and indication function. This can be cooperated with fuse, to enhance battery safety. SC5650 also provides intelligent cell balance function to avoid unbalanced capacity between cells. Cells’ lifetime is effectively extended. In addition, SC5650 also integrates CTRC/CTRD control pin to support stacked application, up to 6-10 cells application. The SC5650 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. SC5650 is available in TSSOP-20 footprint.

Selection Guide

Part Number

VOVP

VOVP Hys.

VODV

VODV Hys.

VDOC1

VDOC2

VSC

VCOC

SC5650AIAA

4.425V

100mV

2.3V

200mV

+80mV

2*VDOC1

4*VDOC1

-10mV

SC5650DAEA

4.25V

100mV

2.5V

200mV

+60mV

2*VDOC1

4*VDOC1

-20mV

SC5650DAED

4.25V

100mV

2.5V

200mV

+65mV

2*VDOC1

4*VDOC1

-50mV

SC5650AAED

4.45V

100mV

2.5V

200mV

+65mV

2*VDOC1

4*VDOC1

-50mV

SC5650CAED

4.2V

100mV

2.5V

200mV

+50mV

2*VDOC1

4*VDOC1

-20mV

Part Number	tDOC1/tDOC2/tSC/tCOC	TCOT/TCUT/TDOT/TDUT	0V Charging	VBAL
SC5650AIAA	24ms/1024μs/512μs/10ms	45°C/0°C/70°C/-15°C	Y	4V
SC5650DAEA	24ms/1024μs/256μs/10ms	50°C/0°C/70°C/-10°C	Y	4.15V
SC5650DAED	24ms/1024μs/256μs/10ms	50°C/-5°C/70°C/-15°C	Y	4.175V
SC5650AAED	24ms/1024μs/256μs/10ms	50°C/-5°C/70°C/-15°C	Y	4.175V
SC5650CAED	24ms/1024μs/256μs/10ms	50°C/-5°C/70°C/-15°C	Y	4.15V

Support 2-5 cells Li-ion/LiFePO4 rechargeable battery
IC working temperature range: -40°C~+85°C
Support over voltage protection (OVP)
√ 3.0 V to 4.575V, ±35mV accuracy (Ta=+25°C)
Support under voltage protection (UVP)
√ 1.2V to 3V, ±50mV accuracy (Ta=+25°C)
Support cell disconnection detection
Support over voltage secondary protection and indication
OVP and UVP delay time adjusted by external resistor
Support 3-levels discharge over current protection:
√ Discharging over current 1 (DOC1): 10mV-85mV
√ Discharging over current 2 (DOC2): 2 x DOC1
√ Short circuit protection (SCP): 4 x DOC1
Support charge over current protection (COC):
√ Charging over current (COC): 5mV-80mV
Support battery temperature protection
√ Charging over temperature (COT): +45°C/+50°C
√ Charging under temperature (CUT): -5°C/0°C
√ Discharging over temperature (DOT): +65°C/+70°C
√ Discharging under temperature (DUT): -15°C/-10°C
Support NTC disconnection detection
Support 0V battery charging function
Support separate path for charge and discharge
Support stacked application
Support chip thermal shutdown
Low power consumption:
√ Normal mode (20μA for typically)
√ Sleep mode (6μA for typically)

Power tool
Electrical bikes
UPS backup battery

SC5650_datasheet_brief_en

Download

86-755-28168222
gqh@mengqikj.com
Room 1213-1216, Zehua Building, Intersection of Meilong Road and East Ring Road, Longhua New District, Shenzhen

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