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SS9176CS-10TR Datasheet(PDF) 8 Page - Silicon Standard Corp. |
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SS9176CS-10TR Datasheet(HTML) 8 Page - Silicon Standard Corp. |
8 / 12 page www.SiliconStandard.com 8 of 12 SS9175/6 REFERENCE CIRCUITS Current sharing application using SS9176CS This current sharing circuit is implemented using the SS9176CS. The dual phase MOSFETs must be supplied from the same supply voltage (in this case, from 12V). They can also be supplied from a 5V supply voltage. As there is only a single output voltage (1.4V in this case), the divided voltage is fed back to the IN pin. The VCC supply voltage can be either 12V or 5V, depending on the convenience of PCB layout, but VCC = 12V is recommended. If VCC > 6.5V, the BSTC output is fixed at 6V. This BSTC voltage is used as the supply voltage for the bootstrap circuit’s diodes input. A 10uF capacitor is recommended for BSTC decoupling. A 1k resistor is connected from CL2+ to the MOSFET’s high-side voltage. This 1k resistor is used to program the OCP level. 1.4v PWRG 12v VCC DH1 DL1 BST1 PGND IN1 COMP PWRGD CL2+ CL2- DH2 DL2 BST2 BSTC SS/ENB GND 1uF 1k 1uF 7.5uH 450uF 50k 50k 7.5uH 10uF 0.22uF 2.2pF APPLICATION INFORMATION (cont.) Rev.2.02 12/29/2003 PRELIMINARY |
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