STPD01 datasheet(19/43 Pages) STMICROELECTRONICS

部件名	STPD01

功能描述	Programmable buck converter for USB power delivery

PDF	43 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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19 / 43 page

Figure 33. Deglitch time

Pon

VOUT

deglitch time

5% of Vout

Time

7.5

Vout transition

The Vout transitions are performed forcing the device into PWM mode in order to guarantee the max. slew rate

reported in the EC table (see Table 6. Electrical characteristics).

During the transitions, the voltage level overcomes the limits defined by the ±2% precision. Therefore an extra

margin of 500 mV (max.) is allowed for about 300 ms and OVP is masked in order to avoid false alarms.

Figure 34. Transition envelope for positive voltage

transitions

Slew rate

500mV

Voltage

Time

Figure 35. Transition envelope for negative voltage

transitions

500mV

Voltage

Time

Slew rate

The maximum slew rate is guaranteed with the output capacitance value defined in the USB-PD spec. as follows:

STPD01

Vout transition

DS13473 - Rev 1

page 19/43

STPD01 数据表(PDF) 19 Page - STMicroelectronics