SS9175 datasheet(8/12 Pages) SSC

Part #	SS9175

Description	Dual Synchronous DC/DC Controllers With Current Sharing Circuitry

PDF	12 Pages

Scroll/Zoom	100%

Manufacturer	SSC [Silicon Standard Corp.]

Direct Link	http://www.siliconstandard.com

Logo

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

either

12V

5V,

depending

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

7.5uH

450uF

50k

7.5uH

10uF

0.22uF

2.2pF

APPLICATION INFORMATION (cont.)

Rev.2.02 12/29/2003

PRELIMINARY

SS9175 Datasheet(PDF) 8 Page - Silicon Standard Corp.

SS9175 Datasheet(HTML) 8 Page - Silicon Standard Corp.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL