參數(shù)資料
型號(hào): MIC2506BN
廠商: MICREL INC
元件分類: 電源管理
英文描述: Single 2A / Dual 1A / High-Side Switches
中文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8
封裝: PLASTIC, DIP-8
文件頁數(shù): 10/12頁
文件大?。?/td> 147K
代理商: MIC2506BN
MIC2505/2506
Applications Information
USB Application
Figure 4 depicts a low cost and robust implementation of a
four-port, self-powered USB hub circuit employing ganged
overcurrent protection.
Micrel
MIC2505/2506
10
April 1998
ON/OFF
OVERCURRENT
MIC2505-2/-1
3.3V USB Controller
V
BUS
D+
D–
GND
V
BUS
D+
D–
GND
100k
MIC5203-3.3
MIC5207-3.3
LDO Regulator
IN
OUT
GND
33μF
Ferrite
Bead
V
BUS
D+
D–
GND
D+
D–
V+
EN
FLG
GND
GATE
OUT
IN
OUT
IN
Bold
lines indicate
0.1" wide, 1-oz. copper
high-current traces.
Downstream
USB
Port 1
500mA max.
33μF
V
BUS
D+
D–
GND
Data
V
BUS
D+
D–
GND
33μF
33μF
0.01μF
0.01μF
0.01μF
0.01μF
4.7
μF
1.0
μF
GND
0.1μF
4.45V to 5.25V
3.5A max.
(–)
(+)
33μF
Downstream
USB
Port 2
500mA max.
Downstream
USB
Port 3
500mA max.
Downstream
USB
Port 4
500mA max.
Figure 4. Ganged-Switch Self-Powered Hub
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