Datasheet

UCD9244
UCD7242
UCD7242
UCD9244
www.ti.com SLVSAL6A –NOVEMBER 2010–REVISED FEBRUARY 2011
TYPICAL APPLICATION SCHEMATIC
Figure 3 shows the UCD9244 power supply controller as part of a system that provides the regulation of two
independent power supplies. The loop for each power supply is created by the respective voltage outputs feeding
into the differential voltage error ADC (EADC) inputs, and completed by DPWM outputs feeding into the gate
drivers for each power stage.
The ±V
sense
rail signals must be routed to the EAp/EAn input that matches the DPWM number that controls the
output power stage. For example, the power stage driven by DPWM1A must have its feedback routed to EAP1
and EAN1.
Figure 3. Typical Application Schematic
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