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SC5650AAED
High-Accuracy Protector with Cell Balance for 2-5 Cells Li-ION/Polymer Battery

Introduce

 

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

Function

 

●  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)

Application

 

●  Power tool

 

●  Electrical bikes

 

●  UPS backup battery

Consulting telephone : 4006803188(Business) 021-38067888(Headquarter)
Sales & marketing: sc-sales-service@southchip.com
Human resources: hr-candidate@southchip.com
Complaints & suggestions: complain@southchip.com