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STM32H750VB bảng dữ liệu(PDF) 206 Page - STMicroelectronics

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Electrical characteristics (rev V)
STM32H750VB STM32H750ZB STM32H750IB STM32H750XB
206/334
DS12556 Rev 5
7.3.2
VCAP external capacitor
Stabilization for the main regulator is achieved by connecting an external capacitor CEXT to
the VCAP pin. CEXT is specified in Table 122. Two external capacitors can be connected to
VCAP pins.
Figure 66. External capacitor CEXT
1. Legend: ESR is the equivalent series resistance.
7.3.3
Operating conditions at power-up / power-down
Subject to general operating conditions for TA.
Table 123. Operating conditions at power-up / power-down (regulator ON)
Table 122. VCAP operating conditions(1)
1. When bypassing the voltage regulator, the two 2.2 µF VCAP capacitors are not required and should be
replaced by two 100 nF decoupling capacitors.
Symbol
Parameter
Conditions
CEXT
Capacitance of external capacitor
2.2 µF(2)
2. This value corresponds to CEXT typical value. A variation of +/-20% is tolerated.
ESR
ESR of external capacitor
< 100 m
MS19044V2
ESR
R Leak
C
Symbol
Parameter
Min
Max
Unit
tVDD
VDD rise time rate
0
∞
µs/V
VDD fall time rate
10
∞
tVDDA
VDDA rise time rate
0
∞
VDDA fall time rate
10
∞
tVDDUSB
VDDUSB rise time rate
0
∞
VDDUSB fall time rate
10
∞



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