AN1645 datasheet(12/22 Pages) STMICROELECTRONICS

부품명	AN1645

상세설명	STSR2P/STSR2PM SIMPLIFIES IMPLEMENTATION

PDF	22 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

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AN1645 - APPLICATION NOTE

12/22

Table 2: Anticipation values

The voltage on the SETANT2 pin can be obtained using a resistor divider of the supply voltage.

The Digital Control Block generates these anticipations by counting the number of high frequency pulses

included within the switching period and the On-time time interval. Due to the digital nature of this

system, some bits can be lost during the counting, causing a jitter in the output driving signals (Figure

17). Table 2 shows the average OUTGate1 and OUTGate2 anticipation times.

Figure 16: STSR2P Timing

Parameter

Value

Unit

tant1

Fixed internally

0<SETANT2< Vcc

Vcc

<SETANT2< Vcc

150

tant2

Vcc

< SETANT2<Vcc

225

(È

287*DWH

AN1645 데이터시트(PDF) 12 Page - STMicroelectronics