E-SG2525AP013TR データシートの表示（PDF） - STMicroelectronics

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E-SG2525AP013TR

REGULATING PULSE WIDTH MODULATORS

STMicroelectronics 

Figure 8.

Figure 9.

SG2525A-SG3525A

For single-ended supplies, the driver outputs are

grounded.The VC terminal is switched to groundby

the totem-pole source transistors on alternate oscil-

lator cycles.

Figure 10.

In conventional push-pull bipolar designs, forward

base drive is controlled by R1 - R3. Rapid turn-off

times for the power devices are achieved with

speed-up capacitors C1 and C2.

Figure 11.

Thelow source impedanceof the outputdrivers pro-

vides rapid charging of Power Mos input capaci-

tance while minimizing external components.

Low power transformers can be driven directly.

Automaticresetoccurs duringdeadtime, whenboth

ends of the primary winding are switched to ground.

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