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USB5744 数据表(PDF) 33 Page - Microchip Technology

部件名 USB5744
功能描述  4-Port SS/HS USB Controller Hub
PDF  51 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB5744 数据表(HTML) 33 Page - Microchip Technology

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2022 Microchip Technology Inc. and its subsidiaries
DS00001855L-page 33
USB5744
10.3
Package Thermal Specifications
FIGURE 10-1:
SUPPLY RISE TIME MODEL
Note:
The rise time for the 1.2V and 3.3V supplies can be extended to 100 ms max if RESET_N is actively driven
low, typically by another IC, until 1 us after all supplies are within operating range.
TABLE 10-1:
PACKAGE THERMAL PARAMETERS
Symbol
°C/W
Velocity (Meters/s)
JA
30
0
26
1
JT
0.2
0
0.3
1
JC
2.6
0
2.6
1
Note:
Thermal parameters are measured or estimated for devices in a multi-layer 2S2P PCB per JESDN51.
TABLE 10-2:
MAXIMUM POWER DISSIPATION
Parameter
Value
Units
PD(max)
1400
mW
t10%
10%
90%
Voltage
TRT
t90%
Time
100%
3.3 V
VSS
VDD33
90%
100%
1.2 V
VDD12



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