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UCS1002-3 bảng dữ liệu(PDF) 33 Page - Microchip Technology

tên linh kiện UCS1002-3
Giải thích chi tiết về linh kiện  Programmable USB Port Power Controller with Charger Emulation
PDF  114 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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UCS1002-3 bảng dữ liệu(HTML) 33 Page - Microchip Technology

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 2023 Microchip Technology Inc. and its subsidiaries
DS20006852A-page 33
UCS1002-3
area representing the USB 2.0 specified VBUS range
is now restricted to an upper current limit of IBUS_R2MIN.
Note that the UCS1002-3 will heat up along each load
line as voltage decreases. If the internal temperature
exceeds the TREG or TTSD thresholds, the port power
switch will open. Also note that when the VBUS voltage
is brought low enough (below VBUS_MIN), the port
power switch will open.
FIGURE 7-2:
Constant Current Limiting (Variable Slope) Operation.
5
4
3
2
1
0.5
1.0
1.5
2.0
2.5
5.25
4.75
0
0
0.9
1.2
1.2
1.0
0.9
0.5
1.5
IBUS_R2MIN
1.8
1.8
2.0
2.5
IBUS (Amps)
ILIM (Amps)
= ILIM’s
Constant
resistance IBUS
operation line 1
(ILIM = 0.5 A)
Constant resistance
IBUS operation line 5
(ILIM = 1.5 A*)
CC Mode - Power switch current increases as
voltage decreases when ILIM is exceeded
following constant resistance lines
*1.5 A limit reduced by -3.5% internally



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