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STM32H747AI датащи(PDF) 115 Page - STMicroelectronics

номер детали STM32H747AI
подробное описание детали  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI
PDF  252 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STM32H747AI датащи(HTML) 115 Page - STMicroelectronics

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DS12930 Rev 1
105/242
STM32H747xI/G
Electrical characteristics
221
6.3.4
Operating conditions at power-up / power-down
Subject to general operating conditions for TA.
Table 27. Operating conditions at power-up / power-down (regulator ON)
ISAT
DC current at which the inductance drops 30% from
its value without current.
1.7 A
IRMS
Average current for a 40 °C rise: rated current for
which the temperature of the inductor is raised 40°C
by DC current
1.4 A
Table 26. SMPS step-down converter characteristics for external usage
Parameters
Conditions
Min
Typ
Max
Unit
VDDSMPS(1)
1. The switching frequency is 2.4 MHz±10%
VOUT = 1.8 V
2.3
-
3.6
V
VOUT = 2.5 V
3
-
3.6
VOUT(2)
2. Including line transient and load transient.
Iout=600 mA
2.25
2.5
2.75
V
1.62
1.8
1.98
IOUT
internal and external usage
-
-
600
mA
External usage only(3)
3. These characteristics are given for SDEXTHP bit is set in the PWR_CR3 register.
-
-
600
RDSON
-
-
100
120
mΩ
IDDSMPS_Q
Quiescent current
-
220
-
µA
TSMPS_START
VOUT = 1.8 V
-
-
225
µs
VOUT = 2.5 V
-
-
300
Table 25. Characteristics of SMPS step-down converter external components
Symbol
Parameter
Conditions
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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