參數(shù)資料
型號: TPS2053DG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封裝: GREEN, PLASTIC, SOIC-16
文件頁數(shù): 13/28頁
文件大?。?/td> 601K
代理商: TPS2053DG4
TPS2043, TPS2053
TRIPLE POWER-DISTRIBUTION SWITCHES
SLVS191 – JANUARY 1999
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
low-power bus-powered functions and high-power bus-powered functions
Both low-power and high-power bus-powered functions obtain all power from upstream ports; low-power
functions always draw less than 100 mA, and high-power functions must draw less than 100 mA at power up
and can draw up to 500 mA after enumeration. If the load of the function is more than the parallel combination
of 44
and 10 F at power up, the device must implement inrush current limiting (see Figure 32).
IN1
OC1
EN1
OC3
EN3
2
16
13
12
9
15
6
0.1
F
10
F
0.1
F
10
F
Internal
Function
OUT1
OUT2
Power Supply
3.3 V
IN2
OC2
NC
14
11
0.1
F
10
F
OUT3
NC
10
EN2
NC
3
4
7
8
GND1
GND2
1
5
Internal
Function
Internal
Function
0.1
F
10
F
USB
Control
GND
VBUS
D–
D+
TPS2043
Figure 32. High-Power Bus-Powered Function
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