PRODUCT CENTER
SC8502
High voltage, High efficiency Switched-Cap Converter/Charger
Introduce
 

The SC8502 is a high voltage, high efficiency switched-cap converter or charger. It has multiple operation modes with a very high efficiency (around 97.6% at VBUS=20V, VOUT=10V, IOUT=4A). In converter configuration, the device is suitable for singlecell (1S) application supplied by wireless input or USB input voltage between 4V to 21V. In charger configuration, the device is suitable for dual-cell (2S) application as a slave charger, working in parallel with a boost or buck-boost switching charger. The battery voltage for enabling charging is between 5.5V to 10V. SC8502 adopts 36pin CSP 2.71mm X 2.92mm package.

Function
 

●  97.6% efficiency power stage for 10V/4A output power

 

●  Dual-phase architecture optimized for 50% duty cycle

 

●  A 28V tolerant DC voltage on VBUS and PMID

 

●  Multiple operation mode

   √ Forward 2:1 converter mode

   √ Forward 1:1 converter mode

   √ Reverse 1:2 converter mode

   √ Reverse 1:1 converter mode

   √ Forward 2:1 charger mode

   √ Forward 1:1 charger mode

 

●  Support USB and wireless RX dual input

 

●  Multi-functional VBUS_OK/IBUS_SNS pin

   √ Valid VBUS voltage logic indicator in converter mode

   √ IBUS current sense output in charger mode

 

●  Protection

   √ VOUT_OVP

   √ VBUS_OVP

   √ PMID_OVP

   √ PMID_BYPASS_OVP

   √ PMID_SWITCH_UVP

   √ PMID2OUT_OVP

   √ PMID2OUT_UVP

   √ PMID2OUT_OCP

   √ PMID2OUT_RCP

   √ IBUS_OCP

   √ IBUS_UCP_FALL

   √ CONV_OCP

   √ WD_TIMEOUT

   √ SS_TIMEOUT

   √ SS_FAIL

   √ TSHUT

 

●  Configurable I2C address

 

●  Configurable protection threshold

 

●  Support parallel operation

Application
 

●  Smartphones

 

●  Tablet PCs

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